Disclosure of Invention
The invention aims to provide a passion fruit close planting high-yield cultivation method which is strong in operability, green and safe and overcomes continuous cropping obstacles.
In order to achieve the purpose, the technical scheme of the invention is as follows: the method for densely planting and cultivating the passion fruits at high yield for overcoming continuous cropping obstacles comprises the following steps: (1) selecting land and preparing land; (2) ditching and ridging; (3) a column; (4) a pull wire; (5) separating ridge wheel seeds; (6) planting passion fruit; (7) installing drip irrigation; (8) shaping and trimming; (9) managing in a seedling stage; (10) managing the flower and fruit period; (11) pest control; (12) harvesting; (13) improving the soil of the empty bed;
the ridge-separating wheel seeds are planted in a ridge when the crops are planted, and the ridge-separating planting is carried out; planting another ridge at the next crop, planting at intervals of ridges, and performing ridge-separating wheel planting on the same land;
the improvement of the soil in the empty ridge comprises the following steps:
a. cleaning the vines of the passion fruits, digging out roots and stems, taking the vines out of an orchard, and uniformly crushing to obtain crushed passion fruit plants;
b. carrying out rotary tillage on the ground, and planting tropical and subtropical fast-growing leguminous green manure plants;
c. cutting green manure plants three months before planting passion fruit in the changed bed to obtain crushed green manure plant fresh grass;
d. digging planting holes, pressing 10-20 kg of passion fruit plant crushed materials and 10-20 kg of green manure plant fresh grass crushed materials in each hole, applying pig manure or sheep manure, rice bran, biological bacterial manure, urea, calcium superphosphate and hydrated lime according to the weight ratio of 10: 5: 1: 0.25: 0.2: and (3) mixing and composting by the weight ratio of 0.2, stacking and pressing a layer of mixed fertilizer and a layer of garden soil layer by layer, wherein the soil pile is 30-40 cm higher than the ground.
Preferably, the method for close planting and high-yield cultivation of passion fruit for overcoming continuous cropping obstacles comprises the following steps:
(1) land selection and preparation: selecting flat land or gentle slope land with flat terrain and convenient irrigation and drainage, and soil loam or sandy loam, wherein the soil layer is required to be deep, fertile, loose and breathable, and the pH value is 5.5-7.0; removing weeds and impurities on the ground, deeply turning the whole garden by 40-50 cm, applying an organic fertilizer, dolomite powder or a calcium magnesium phosphate fertilizer, rotary tillage and mixing soil and fertilizer uniformly, and raking the ground;
(2) ditching and ridging: dividing a land block into a plurality of independent ridges in a deep groove digging mode; aiming at preventing the root system of the passion fruit from extending all around to cause the pollution of the site toxin;
(3) column: selecting hot galvanized pipes or cement columns, wherein the length of each column is 2.4-2.7 meters, the hot galvanized pipes or the cement columns are inserted into the ground for 0.6 meter, the height of the ground is 1.8-2.1, the shed columns stand in the center of the ridge at intervals of the upright columns in the ridge, the column spacing is 3.2-4 m, the number of the upright columns is 3.2-4 m, and the number of the upright columns per mu is 55-80;
(4) and (3) wire pulling: hot-dip galvanized iron wires or aluminum-clad steel wires are adopted, each shed span is provided with 4 transverse wires and 3 longitudinal wires, and grids with the specification of 0.8-1.0 m multiplied by 1.1-1.3 m are formed;
(5) and (3) ridge-separating wheel planting: when the stubble is planted in one ridge, planting in the ridge; planting another ridge at the next crop, planting at intervals of ridges, and performing ridge-separating rotation planting on the same land block to reduce continuous cropping harm;
(6) planting passion fruit: selecting healthy and nontoxic grafted seedlings, wherein the row spacing of the seedlings is 0.8-1.0 m multiplied by 3.2-4 m, and 167-260 seedlings are planted per mu; the planting depth is preferably that the root neck is flush with the ground, the soil is covered and compacted, and sufficient root fixing water is poured in time;
(7) installing drip irrigation;
(8) shaping and trimming: when the height of the passion fruit seedlings is 35-50 cm, inserting thin bamboo rods or binding ropes to guide the main vines to be put on a shelf, and cleaning the lateral vines; when the main vines extend to be level with the stands, pinching and topping are carried out, the main vines are shaped like a T, two first-stage lateral vines are selected and reserved, and the main vines extend along the left direction and the right direction respectively;
(9) seedling stage management: spraying a passion fruit root disk with 1500-2000 times of 48% chlorpyrifos solution and 800-1000 times of thiophanate methyl 3-4 days after the passion fruit field planting is finished; before 15 days after planting, drip irrigation and watering are carried out to keep the soil moist, and the humidity is preferably 60-70%; after 15 days, the seedlings start to root through the seedling recovering period, and the root is obtained by mixing 0.3-0.5% of urea aqueous solution, a macroelement water-soluble fertilizer and an organic liquid fertilizer containing amino acid according to the weight ratio of 2: 1: 1 volume ratio, preparing a water-soluble fertilizer with the EC value not higher than 4mS/cm, adopting water and fertilizer integrated irrigation, and applying the water and fertilizer once within 10-15 days;
(10) managing the flower and fruit period: controlling the application amount of a nitrogen fertilizer before flowering, and spraying 2000-2500 times of brassinolide and 0.2-0.3% monopotassium phosphate from leaf surfaces to promote flower bud differentiation; in the flowering period, 12-5-35 of water and fertilizer integrated irrigation is carried out, the TE water-soluble fertilizer and the humic acid-containing water-soluble fertilizer are 600-800 times of liquid, and sugar alcohol calcium 1000 times of liquid and 0.1-0.3% of borax liquid fertilizer are sprayed on leaf surfaces, so that the flower quality and the pollen activity are improved; applying biological organic liquid fertilizer, medium and trace element water soluble fertilizer and macroelement balanced fertilizer in the fruit period; the fertilization frequency is 7-10 d for one time;
(11) pest control;
(12) harvesting: harvesting the fruit surfaces before fruit dropping in the period from 2/4-3/4 color conversion to complete color conversion;
(13) improving the soil of the empty bed:
a. cleaning the vines of the passion fruits, digging out roots and stems, taking the vines out of an orchard, and uniformly crushing to obtain crushed passion fruit plants;
b. carrying out rotary tillage on the ground, and planting tropical and subtropical fast-growing leguminous green manure plants;
c. cutting green manure plants three months before planting passion fruit in the changed bed to obtain crushed green manure plant fresh grass;
d. digging planting holes, pressing 10-20 kg of passion fruit plant crushed materials and 10-20 kg of green manure plant fresh grass crushed materials in each hole, applying pig manure or sheep manure, rice bran, biological bacterial manure, urea, calcium superphosphate and hydrated lime according to the weight ratio of 10: 5: 1: 0.25: 0.2: and (3) mixing and composting by the weight ratio of 0.2, stacking and pressing a layer of mixed fertilizer and a layer of garden soil layer by layer, wherein the soil pile is 30-40 cm higher than the ground.
Preferably, in the step (1), the geographical environment is sunny, the illumination is sufficient, the annual average temperature is more than 20 ℃, the lowest temperature is more than 0 ℃, and no frost exists all the year round.
Preferably, in the step (1), 1000-3000 kg of organic fertilizer, 50-100 kg of dolomite powder or 15-40 kg of calcium magnesium phosphate fertilizer is applied per mu.
Preferably, in the step (2), the depth of the furrow is 40-60 cm, the width of the furrow is 30-50 cm, the width of the furrow surface is 1.3-1.5 m, the furrow is communicated with the drainage ditch, and the depth of the furrow is higher than that of the drainage ditch, so that water can be drained conveniently.
Preferably, in the step (3), the hot-dip galvanized pipe has a diameter of 6.5cm and a thickness of 3 mm; the section specification of the cement column is 10cm multiplied by 10 cm. The periphery of the shed frame is provided with a 45-degree inclined strut of a cement column, the shed net wires are fixed by hoisting cement bulls, and the cement bulls are buried underground to a depth of 1 m.
Preferably, the green manure plant is sesbania, Indian cowpea or Cassia tora.
Preferably, in the step (7), a 16mm internal patch type drip irrigation tape is adopted for pouring the passion fruit, the distance between drippers is 25-50 mm, and the flow rate of the drippers is 2-3L/h; two drip irrigation belts are arranged on each row of passion fruit and are respectively arranged on the two sides of the row and gradually move outwards along with the expansion of the root system.
Preferably, in the step (7), the water irrigation amount of each passion fruit plant is 50-60L/time, so that excessive water irrigation at one time is avoided, and the soil humidity is prevented from being too high.
Preferably, in the step (8), old leaves, shadow leaves and excessive leaves are removed in the late development stage of the fruit during pruning, ventilation and light transmission are kept, and the coloring of the fruit is improved.
Preferably, in the step (8), pinching and topping are carried out when the first-stage lateral vines grow to 1.5-1.8 m, and the second-stage lateral vines are naturally and vertically used as fruiting vines; and (4) pinching and topping when the second-stage lateral vines grow to 30cm above the ground, and simultaneously cutting off the redundant second-stage lateral vines which do not result, promoting the growth of the third-stage lateral vines in time and keeping ventilation and light transmission.
Preferably, the passion fruit planting bed is covered with grass-prevention cloth or is used for artificial grass cutting, and the green manure plants are planted in the empty bed to grow grass and prevent grass.
Preferably, in the step (11), the passion fruit anthracnose is controlled by using 900 times of 25% benomyl missible oil or 800-1000 times of 50% hymexazol or 50% carbofomes wettable powder; the gray mold is prevented and controlled by 1500 times of 50 percent of iprodione 1000-fold liquid or 1000 times of 40 percent of procymidone wettable powder; 800 times of hymexazol or metalaxyl-M + 30% thiamethoxam or chlorpyrifos for preventing stem base rot and underground pests; the stem base rot is treated by cutting the tissues of the diseased part and smearing a quinoline copper preparation for binding; aphids are prevented and controlled by 1000-fold liquid of 3 percent acetamiprid or 1500-fold liquid of 70 percent imidacloprid; thiamethoxam, spinetoram or beta-cypermethrin are used for controlling thrips and scale insects; the disease is prevented and treated by 1000-fold liquid of difenoconazole, 2000-fold liquid of propineb, 600-fold liquid of propineb or dimethomorph; the citrus fruit fly is trapped and killed by hanging a yellow board spraying sex attractant or a fly catching device in the orchard.
Although the passion fruit is a perennial fruit tree, diseases such as continuous cropping obstacles and virus diseases are aggravated when the passion fruit is produced and planted for two years or more, and the yield and the quality are reduced. The invention implements a one-year-one planting system, and further alleviates the occurrence of continuous cropping obstacles.
The invention has the following beneficial effects:
(1) the deep ditch is dug to divide the bed, which is beneficial to drainage and can block the root system of the passion fruit, so that the phenomenon that the root system extends to another bed to generate continuous cropping obstacles such as self-toxicity and the like on the next batch of passion fruit is avoided.
(2) According to the method, deep ditches are dug for dividing beds, the effect of root limiting cultivation is achieved, the passion fruit root system is limited in a certain soil range, fertilizer is applied intensively, the effect of water and fertilizer is improved, and waste is reduced.
(3) According to the invention, the continuous cropping obstacle of the passion fruit is effectively avoided in the same land by the aid of the ridge-dividing rotation, and dependence of deep ploughing on large and medium tractors every year is avoided.
(4) In the invention, green manure plants are interplanted in the hollow bed, so that the weeding area of an orchard is reduced, the land is fertilized, and the rotation obstacle is further reduced.
(5) Through repeated screening experiments, the green manure plants of sesbania, Indian cowpea or cassia tora are finally screened for soil improvement, the method is more suitable for improving the soil for tropical planting, the incidence rate of the stem rot and the epidemic disease of the passion fruit in the improved soil is reduced, and the high yield and the high quality of the passion fruit are promoted.
(6) In the invention, the green manure is dug in situ, pressed and piled to kill harmful bacteria in soil and further reduce the obstacle of rotation. The passion fruit can be directly planted after stacking and retting, and the rings are buckled with each other, so that labor and force are saved.
(7) The invention has the advantages of single-row close planting, T-shaped pruning, natural drooping of the resultant branches, simple pruning operation, labor saving and labor saving, and convenient management. 167-260 plants are planted per mu, and the close planting high yield is realized.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1
The invention discloses a passion fruit close planting high-yield cultivation method for overcoming continuous cropping obstacles, which comprises the following steps:
(1) selecting land: selecting a paddy field with flat terrain and convenient irrigation and drainage, soil loam, deep soil layer, rich fertilizer, crisp and breathable property and pH value of 5.7.
(2) Land preparation: removing weeds and impurities on the ground, deeply turning over the whole garden by 42cm, applying 1000kg of organic fertilizer and 20kg of calcium-magnesium-phosphate fertilizer per mu, rotary tillage, uniformly mixing soil and fertilizer, and raking the ground.
(3) Ditching and ridging: digging a ditch with the depth of 50cm and the width of 35cm in the prepared paddy field land to prepare a furrow with the surface width of 1.3 m.
(4) Column: a DN65 hot-dip galvanized pipe is selected, the length of the pipe is 2.6 meters, the pipe is inserted into the ground for 0.6 meter, the height of the ground is 2.0 meters, a shed column is erected in the center of a ridge, and ridge-separating columns are arranged, as shown in figure 1. The column spacing is 3.3m multiplied by 3.3m, and 60 columns are arranged per mu.
(5) And (3) wire pulling: the hot-dip galvanized iron wire with the diameter of about 0.2mm is adopted, each shed spans 4 grids of 5 transverse wires and 3 grids of 4 longitudinal wires, and a grid with the specification of 0.8m multiplied by 1.1m is formed.
(6) Planting passion fruit: selecting healthy and nontoxic passion fruit grafted seedlings, wherein the height of the grafted seedlings is about 35 cm. Removing the plastic seedling raising cup during planting, leveling the planting depth with the root neck to the ground, covering soil, compacting, and watering enough root fixing water. The seedlings of the passion fruit are planted in the middle of the ridge, the seeds are planted at intervals of the ridge, the row spacing of the seeds is 0.8 multiplied by 3.3m, 264 seedlings are planted per mu, and the seeds are changed from the ridge and planted in the next year.
(7) Installing drip irrigation: the passion fruit irrigation adopts a 16mm internal patch type drip irrigation tape, the distance between drippers is 30mm, and the flow rate of the drippers is 2L/h. Two drip irrigation belts are arranged on each row of passion fruit and are respectively arranged on the two sides of the row and gradually move outwards along with the expansion of the root system.
(8) Shaping and trimming: when the height of the passion fruit seedlings is 40cm, thin bamboo rods or binding ropes are inserted to guide the main vines to be put on a shelf, and meanwhile, the side vines are cleaned. When the main vine extends to be level with the frame, pinching and topping are carried out, the T-shaped shaping is carried out, two first-stage lateral vines are selected and reserved, and the two first-stage lateral vines extend along the left direction and the right direction respectively. When the first-stage lateral vines grow to 1.5m, pinching and topping are carried out, and the second-stage lateral vines are naturally and vertically used as fruiting vines. And (4) pinching and topping when the second-stage lateral vines grow to 30cm above the ground, and simultaneously cutting off the redundant second-stage lateral vines which do not result, promoting the growth of the third-stage lateral vines in time and keeping ventilation and light transmission.
(9) Seedling stage management: and 3d after the passion fruit field planting is finished, spraying the passion fruit root disk with 48% chlorpyrifos 2000 times liquid and 1000 times thiophanate methyl to prevent the biting of underground pests and sterilize the soil. And before 15 days after planting, the soil is kept moist by drip irrigation and watering, and the humidity is preferably 60-70%. After 15 days, the seedlings start to root through the seedling recovering period, and the mixture is treated by using 0.5 percent of urea aqueous solution, a macroelement water soluble fertilizer and an organic liquid fertilizer containing amino acid according to the weight ratio of 2: 1: 1 volume ratio, preparing the water-soluble fertilizer with EC value not higher than 4mS/cm, and irrigating the water-soluble fertilizer integrally, and applying the water-soluble fertilizer once in 10 days.
(10) Managing the flower and fruit period: before flowering, the application amount of the nitrogen fertilizer is controlled to prevent branches and tendrils from overgrowing, and 2500 times of solution of brassinolide and 0.2% monopotassium phosphate are sprayed from leaf surfaces to promote flower bud differentiation. In the flowering period, 12-5-35 of water and fertilizer integrated irrigation is carried out, the TE water-soluble fertilizer and the humic acid-containing water-soluble fertilizer are 800 times of liquid, and sugar alcohol calcium 1000 times of liquid and 0.2% borax liquid fertilizer are sprayed on leaf surfaces, so that the flower quality and the pollen activity are improved. And additionally applying a biological organic liquid fertilizer, a medium and trace element water-soluble fertilizer and a macroelement balanced fertilizer in the fruit period. The fertilization frequency is 10 days.
(11) And (3) pest control: 900 times of 25% benomyl missible oil, 800-1000 times of 50% hymexazol or 50% carbofomes wettable powder is used for preventing and treating the anthracnose of the passion fruit; the gray mold is prevented and controlled by 1500 times of 50 percent of iprodione 1000-fold liquid or 1000 times of 40 percent of procymidone wettable powder; 800 times of hymexazol or metalaxyl-M + 30% thiamethoxam or chlorpyrifos for preventing stem base rot and underground pests; the stem base rot is treated by cutting the tissues of the diseased part and coating copper preparations such as oxine-copper and the like for wrapping; aphids can be controlled by 1000-fold liquid of 3 percent acetamiprid or 1500-fold liquid of 70 percent imidacloprid; the thrips and scale insect can be prevented and treated by thiamethoxam, spinetoram or beta-cypermethrin. The disease is prevented and treated by 1000-fold liquid of difenoconazole, 2000-fold liquid of propineb, 600-fold liquid of propineb or dimethomorph; the citrus fruit fly is trapped and killed by hanging a yellow board spraying sex attractant or a fly catching device in the orchard.
(12) Harvesting: the fruit surface is collected before dropping during the period from about 3/4 color conversion to complete color conversion.
(13) Improving the soil of the empty bed:
after the previous production year is finished, the next production year is changed into new ridge rotation to plant passion fruit, as shown in figure 2, and meanwhile, soil improvement is carried out on the original planting ridge. Firstly, cleaning the vine of the original passion fruit, digging out roots and stems, taking the vine out of an orchard and uniformly crushing the vine to obtain crushed passion fruit plants. Secondly, the ground is rotavated, and the fast-growing green manure plant sesbania is planted. Thirdly, cutting green manure plants three months before planting passion fruit in the changed bed to obtain green manure plant fresh grass crushed materials, digging planting holes with the length, width and depth of 60cm multiplied by 60 multiplied by 50cm, pressing 20kg of passion fruit plant crushed materials and 20kg of fresh grass crushed materials in each hole, applying sheep manure, rice bran, biological bacterial manure, urea, calcium superphosphate and slaked lime according to the weight ratio of 10: 5: 1: 0.25: 0.2: 0.2 weight ratio, and stacking a layer of mixed fertilizer and a layer of garden soil in layers, wherein the soil pile is 40cm higher than the ground.
Example 2
The invention discloses a passion fruit close planting high-yield cultivation method for overcoming continuous cropping obstacles, which comprises the following steps:
(1) selecting land: the dry sloping field with the terrain gradient of 3 degrees and convenient irrigation and drainage, the soil red loam, the deep soil layer, the rich soil, the loose soil and the ventilation are selected, and the PH value is 5.5.
(2) Land preparation: removing weeds and impurities on the ground, deeply turning the whole garden by 50cm, applying 2000kg of organic fertilizer and 40kg of calcium-magnesium-phosphate fertilizer per mu, rotary tillage, uniformly mixing soil and fertilizer, and raking the ground.
(3) Ditching and ridging: and digging a ditch with the depth of 40cm and the width of 30cm in the finished sloping field to form a furrow with the surface width of 1.5 m.
(4) Column: a cement column with a cross section of 10cm multiplied by 10cm is selected, the length of the column is 2.4 meters, the cement column is inserted into the ground for 0.6 meter, the ground height is 1.8 meters, a shed column is erected in the center of a ridge, and ridge-separating columns are arranged, as shown in figure 1. The column spacing is 4m multiplied by 3.6m, and 55 columns are arranged per mu.
(5) And (3) wire pulling: aluminum-clad steel wires with the diameter of about 0.2mm are adopted, each shed spans 4 grids of 5 transverse wires and 3 grids of 4 longitudinal wires, and grids with the specification of 1.0m multiplied by 1.2m are formed.
(6) Planting passion fruit: selecting healthy and nontoxic passion fruit grafted seedlings, wherein the height of the grafted seedlings is about 35 cm. Removing the plastic seedling raising cup during planting, leveling the planting depth with the root neck to the ground, covering soil, compacting, and watering enough root fixing water. The passion fruit seedlings are planted in the middle of the ridge, the seeds are planted at intervals of the ridge, the row spacing of the seeds is 1.0 multiplied by 3.6m, 185 seedlings are planted per mu, and the seeds are planted in the ridge changed in the next year.
(7) Installing drip irrigation: the passion fruit is irrigated by adopting a 16mm internal patch type drip irrigation tape, the distance between drippers is 50mm, and the flow rate of the drippers is 3L/h. Two drip irrigation belts are arranged on each row of passion fruit and are respectively arranged on the two sides of the row and gradually move outwards along with the expansion of the root system.
(8) Shaping and trimming: when the height of the passion fruit seedlings is 40cm, thin bamboo rods or binding ropes are inserted to guide the main vines to be put on a shelf, and meanwhile, the side vines are cleaned. When the main vine extends to be level with the frame, pinching and topping are carried out, the T-shaped shaping is carried out, two first-stage lateral vines are selected and reserved, and the two first-stage lateral vines extend along the left direction and the right direction respectively. When the first-stage lateral vines grow to 1.65m, pinching and topping are carried out, and the second-stage lateral vines are naturally and vertically used as fruiting vines. And (4) pinching and topping when the second-stage lateral vines grow to 30cm above the ground, and simultaneously cutting off the redundant second-stage lateral vines which do not result, promoting the growth of the third-stage lateral vines in time and keeping ventilation and light transmission.
(9) Seedling stage management: and 3d after the passion fruit field planting is finished, spraying the passion fruit root disk with 48% chlorpyrifos 2000 times liquid and 1000 times thiophanate methyl to prevent the biting of underground pests and sterilize the soil. And before 15 days after planting, the soil is kept moist by drip irrigation and watering, and the humidity is preferably 60-70%. After 15 days, the seedlings start to root through the seedling recovering period, and the mixture is treated by using 0.5 percent of urea aqueous solution, a macroelement water soluble fertilizer and an organic liquid fertilizer containing amino acid according to the weight ratio of 2: 1: 1 volume ratio, preparing the water-soluble fertilizer with EC value not higher than 4mS/cm, and irrigating the water-soluble fertilizer integrally, and applying the water-soluble fertilizer once after 7 days.
(10) Managing the flower and fruit period: before flowering, the nitrogen fertilizer application amount is controlled to prevent branches and tendrils from overgrowing, and brassinolide 2000-fold liquid and 0.2% monopotassium phosphate are sprayed from leaf surfaces to promote flower bud differentiation. In the flowering period, 12-5-35 of water and fertilizer integrated irrigation is carried out, the TE water-soluble fertilizer and the humic acid-containing water-soluble fertilizer are 800 times of liquid, and sugar alcohol calcium 1000 times of liquid and 0.1% borax liquid fertilizer are sprayed on leaf surfaces, so that the flower quality and the pollen activity are improved. And additionally applying a biological organic liquid fertilizer, a medium and trace element water-soluble fertilizer and a macroelement balanced fertilizer in the fruit period. The fertilization frequency is 10 days.
(11) And (3) pest control: 900 times of 25% benomyl missible oil, 800-1000 times of 50% hymexazol or 50% carbofomes wettable powder is used for preventing and treating the anthracnose of the passion fruit; the gray mold is prevented and controlled by 1500 times of 50 percent of iprodione 1000-fold liquid or 1000 times of 40 percent of procymidone wettable powder; 800 times of hymexazol or metalaxyl-M + 30% thiamethoxam or chlorpyrifos for preventing stem base rot and underground pests; the stem base rot is treated by cutting the tissues of the diseased part and coating copper preparations such as oxine-copper and the like for wrapping; aphids can be controlled by 1000-fold liquid of 3 percent acetamiprid or 1500-fold liquid of 70 percent imidacloprid; the thrips and scale insect can be prevented and treated by thiamethoxam, spinetoram or beta-cypermethrin. The disease is prevented and treated by 1000-fold liquid of difenoconazole, 2000-fold liquid of propineb, 600-fold liquid of propineb or dimethomorph; the citrus fruit fly is trapped and killed by hanging a yellow board spraying sex attractant or a fly catching device in the orchard.
(12) Harvesting: the fruit surface is collected before dropping during the period from about 3/4 color conversion to complete color conversion.
(13) Improving the soil of the empty bed:
after the previous production year is finished, the next production year is changed to new ridge and passion fruit is planted in a wheel mode, as shown in figure 2, and meanwhile soil improvement is conducted on the original planting ridge. Firstly, cleaning the vine of the original passion fruit, digging out roots and stems, taking the vine out of an orchard and uniformly crushing the vine to obtain crushed passion fruit plants. Secondly, the ground is rotarily cultivated, and tropical and subtropical fast-growing legume green manure plant 'Indian cowpea' is planted. Thirdly, cutting green manure plants three months before planting passion fruit in the changed bed to obtain green manure plant fresh grass crushed substances, digging planting holes with the length, width and depth of 60cm multiplied by 60 multiplied by 50cm, pressing 15kg of passion fruit plant crushed substances and 20kg of fresh grass in each hole, applying pig manure, rice bran, biological bacterial manure, urea, calcium superphosphate and hydrated lime according to the weight ratio of 10: 5: 1: 0.25: 0.2: 0.2 weight ratio, and stacking a layer of mixed fertilizer and a layer of garden soil in layers, wherein the soil pile is 30cm higher than the ground.
Example 3
The invention discloses a passion fruit close planting high-yield cultivation method for overcoming continuous cropping obstacles, which comprises the following steps:
(1) selecting land: selecting dry land with flat terrain and convenient irrigation and drainage, sandy loam, deep soil layer, fertile, loose and breathable soil, and the pH value is 6.1.
(2) Land preparation: removing weeds and impurities on the ground, deeply turning the whole garden by 45cm, applying 3000kg of organic fertilizer and 30kg of calcium-magnesium-phosphate fertilizer per mu, rotary tillage, uniformly mixing soil fertilizer, and raking the ground.
(3) Ditching and ridging: and digging a ditch with the depth of 60cm and the width of 50cm in the finished land block to prepare a furrow with the surface width of 1.35 m.
(4) Column: a cement column with a cross section of 10cm multiplied by 8cm is selected, the length of the column is 2.5 meters, the cement column is inserted into the ground for 0.6 meter, the ground height is 1.9 meters, a shed column is erected in the center of a ridge, and ridge-separating columns are arranged, as shown in figure 1. The column spacing is 3.3m multiplied by 3.7m, and 55 columns are arranged per mu.
(5) And (3) wire pulling: aluminum-clad steel wires with the diameter of about 0.2mm are adopted, each shed spans 4 grids of 5 transverse wires and 3 grids of 4 longitudinal wires, and a grid with the specification of 0.8m multiplied by 1.23m is formed.
(6) Planting passion fruit: selecting healthy and nontoxic passion fruit grafted seedlings, wherein the grafted seedlings are about 40cm high. Removing the plastic seedling raising cup during planting, leveling the planting depth with the root neck to the ground, covering soil, compacting, and watering enough root fixing water. The passion fruit seedlings are planted in the middle of the ridge, the seeds are planted at intervals of the ridge, the row spacing of the seeds is 0.8 multiplied by 3.7m, 225 seedlings are planted per mu, and the seeds are changed from the ridge and planted in the next year.
(7) Installing drip irrigation: the passion fruit is irrigated by adopting a 16mm internal patch type drip irrigation tape, the distance between drippers is 25mm, and the flow rate of the drippers is 3L/h. Two drip irrigation belts are arranged on each row of passion fruit and are respectively arranged on the two sides of the row and gradually move outwards along with the expansion of the root system.
(8) Shaping and trimming: after planting, thin bamboo rods or binding ropes are inserted to lead the main vines to be put on a shelf, and meanwhile, the side vines are cleaned. When the main vine extends to be level with the frame, pinching and topping are carried out, the T-shaped shaping is carried out, two first-stage lateral vines are selected and reserved, and the two first-stage lateral vines extend along the left direction and the right direction respectively. When the first-stage lateral vines grow to 1.7m, pinching and topping are carried out, and the second-stage lateral vines are naturally and vertically used as fruiting vines. And (4) pinching and topping when the second-stage lateral vines grow to 30cm above the ground, and simultaneously cutting off the redundant second-stage lateral vines which do not result, promoting the growth of the third-stage lateral vines in time and keeping ventilation and light transmission.
(9) Seedling stage management: 4d after the passion fruit field planting is finished, spraying the passion fruit root disk with 48% chlorpyrifos 2000 times liquid and 1000 times thiophanate methyl to prevent the biting of underground pests and sterilize the soil. And before 15 days after planting, the soil is kept moist by drip irrigation and watering, and the humidity is preferably 60-70%. After 15 days, the seedlings start to root through the seedling recovering period, and the mixture is treated by using 0.5 percent of urea aqueous solution, a macroelement water soluble fertilizer and an organic liquid fertilizer containing amino acid according to the weight ratio of 2: 1: 1 proportion, preparing the water-soluble fertilizer with EC value not higher than 4mS/cm, and irrigating the water-soluble fertilizer and the water-soluble fertilizer integrally, and applying the water-soluble fertilizer once in 10 days.
(10) Managing the flower and fruit period: before flowering, the application amount of the nitrogen fertilizer is controlled to prevent branches and tendrils from overgrowing, and 2500 times of solution of brassinolide and 0.2% monopotassium phosphate are sprayed from leaf surfaces to promote flower bud differentiation. In the flowering period, 12-5-35 of water and fertilizer integrated irrigation is carried out, the TE water-soluble fertilizer and the humic acid-containing water-soluble fertilizer are 800 times of liquid, and sugar alcohol calcium 1000 times of liquid and 0.2% borax liquid fertilizer are sprayed on leaf surfaces, so that the flower quality and the pollen activity are improved. And additionally applying a biological organic liquid fertilizer, a medium and trace element water-soluble fertilizer and a macroelement balanced fertilizer in the fruit period. The fertilization frequency is 10d for each time.
(11) And (3) pest control: 900 times of 25% benomyl missible oil, 800-1000 times of 50% hymexazol or 50% carbofomes wettable powder is used for preventing and treating the anthracnose of the passion fruit; the gray mold is prevented and controlled by 1500 times of 50 percent of iprodione 1000-fold liquid or 1000 times of 40 percent of procymidone wettable powder; 800 times of hymexazol or metalaxyl-M + 30% thiamethoxam or chlorpyrifos for preventing stem base rot and underground pests; the stem base rot is treated by cutting the tissues of the diseased part and coating copper preparations such as oxine-copper and the like for wrapping; aphids can be controlled by 1000-fold liquid of 3 percent acetamiprid or 1500-fold liquid of 70 percent imidacloprid; the thrips and scale insect can be prevented and treated by thiamethoxam, spinetoram or beta-cypermethrin. The disease is prevented and treated by 1000-fold liquid of difenoconazole, 2000-fold liquid of propineb, 600-fold liquid of propineb or dimethomorph; the citrus fruit fly is trapped and killed by hanging a yellow board spraying sex attractant or a fly catching device in the orchard.
(12) Harvesting: the fruit surface is collected before dropping during the period from about 3/4 color conversion to complete color conversion.
(13) Improving the soil of the empty bed:
after the previous production year is finished, the next production year is changed into new ridge rotation to plant passion fruit, as shown in figure 2, and meanwhile, soil improvement is carried out on the original planting ridge. Firstly, cleaning the vine of the original passion fruit, digging out roots and stems, taking the vine out of an orchard and uniformly crushing the vine to obtain crushed passion fruit plants. Secondly, the ground is rotarily cultivated, and the fast-growing bean family green manure plant, namely the cassia tora, is planted. Thirdly, cutting green manure plants three months before planting passion fruit in the changed bed to obtain green manure plant fresh grass crushed materials, digging planting holes with the length, width and depth of 60cm multiplied by 60 multiplied by 50cm, pressing 10kg of passion fruit plant crushed materials and 15kg of fresh grass crushed materials in each hole, applying sheep manure, rice bran, biological bacterial manure, urea, calcium superphosphate and slaked lime according to the weight ratio of 10: 5: 1: 0.25: 0.2: 0.2 weight ratio, and stacking a layer of mixed fertilizer and a layer of garden soil in layers, wherein the soil pile is 35cm higher than the ground.
Comparative example 1: the traditional passion fruit cultivation method is adopted:
1. planting
(1) Distance of planting. The passion fruit is a vine fruit tree, so the passion fruit is cultivated in a shed frame, when branches and tendrils of the passion fruit begin to extend, the shed frame is just started, the row spacing is basically 3.5 meters, the plant spacing is most suitable at 3.5-4 meters, and about 75 plants are planted per mu. When the single-line hedgerow type cultivation is adopted, the row spacing is between 1.7 and 1.9 meters, the plant spacing is between 3.5 and 4.5 meters, and about 100 plants are planted per mu.
(2) A method of planting. According to the original preset planting row spacing and plant spacing, digging 65 cm in width, digging 20-35 cm in depth, making planting furrows, then putting mixed soil and miscellaneous fertilizers or composts in advance, simultaneously using 0.3 kg of phosphorus and 0.2-0.3 kg of compound fertilizers for each vine, then lifting the piers to plant the vines, observing after the plants are planted and survive, timely removing the grown axillary buds, only needing to leave the top buds on the main vines, binding the vines on the columns, and helping the plants to climb along the trellis to grow.
2. And (5) building a shed frame. In the period of cultivation of the passion fruit, a shed frame must be built, so that management and final picking are facilitated, mainly the horizontal shed frame and the single-line fence type frame are mainly used, the height of a column of the single-line fence type frame is about 2.5 meters, the passion fruit is erected between the column and the column, the distance from the passion fruit to the ground is about 35 centimeters, and two lines are pulled on each column.
3. Pruning and trimming. After the passion fruit is planted in a fixed mode, a support column needs to be inserted in the seedling stage, and the purpose that a main vine is guided to climb onto a shed frame is achieved. When the main vine grows to one meter, the top buds are cut off to promote the main vine to grow out the lateral vines, then only the other lateral vine is left on each side to grow towards two sides, when the lateral vines grow to two meters, the top buds of the lateral vines are cut off to promote the main vine to grow out the lateral vines again. When the horizontal shed frame is used for cultivation, when the main vines reach the shed frame, the main vines grow to the periphery after the main vines are left, the passion fruit does not need to be cut strongly, transition trimming is not needed, otherwise the main vines are easy to wither, and the passion fruit slowly grows to die. Normally, after picking, the side vines are cut short, 3 to 4 nodes are left, and the new side vines are promoted. The excessive dense branches and the branches dropping to the ground are cut off, and the ventilation and lighting of the plants can be enhanced after the thinning and cutting.
4. And (6) fertilizing. When the passion fruit is fertilized, the proportion of nitrogen, phosphorus and potassium is generally 2: 1: 4, nitrogen fertilizer is not applied to the plant, and if the plant grows fast, two Aiduoshou sprays are started 7 days after planting, every seven days, and one small bag of water is 61 kg. Within 15 days after flowering, the fertilizer needs to be increased to help the fruits grow bigger.
Comparative example 2: the method for cultivating passion fruit of comparative example 2 is the same as the method of the present invention except that the soil improvement step is not performed.
Comparative example 3: the passion fruit cultivation method of comparative example 3 was consistent with the present invention except that other green manure plants were used in the soil improvement step.
By comparing the passion fruit cultivation method with the passion fruit cultivation methods of the comparative examples 1, 2 and 3, the comparison data of the following tables 1 and 2 are obtained, and the comparison of the table data can obviously show that the average annual yield of the passion fruit of the three examples of the invention is 2481kg, the annual yield of the passion fruit is 1165kg, and the seedling survival rate, the fruit setting rate and the fruit quality are all superior to those of the comparative example 1. Through repeated screening experiments, the green manure plants of sesbania, Indian cowpea or cassia tora are finally screened for soil improvement, the method is more suitable for improving the soil for tropical planting, the incidence rate of the stem rot and the epidemic disease of the passion fruit in the improved soil is reduced, and the high yield and the high quality of the passion fruit are promoted. Therefore, the cultivation method of the present invention is superior to comparative examples 1, 2 and 3.
TABLE 1
TABLE 2
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.