CN111393226B - Insect-prevention growth-promoting foliar fertilizer - Google Patents
Insect-prevention growth-promoting foliar fertilizer Download PDFInfo
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- CN111393226B CN111393226B CN202010086929.6A CN202010086929A CN111393226B CN 111393226 B CN111393226 B CN 111393226B CN 202010086929 A CN202010086929 A CN 202010086929A CN 111393226 B CN111393226 B CN 111393226B
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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Abstract
The invention belongs to the technical field of fertilizers, and particularly relates to an insect-prevention growth-promoting foliar fertilizer which comprises an insect excrement soaking extract, compound plant essential oil and a surfactant, wherein the insect excrement soaking extract is obtained by extracting insect excrement through an ethanol-acetone-water system and then compounding the insect excrement soaking extract with the compound plant essential oil and the surfactant to obtain the insect-prevention growth-promoting foliar fertilizer. Growth promotion tests and insect prevention effect tests of the foliar fertilizer show that the foliar fertilizer has good fertilizer effect and insect prevention effect, can remarkably promote the growth of crops, and reduces the insect pest incidence rate of the crops. Therefore, the foliar fertilizer has better insect-proof and growth-promoting effects, is beneficial to resource utilization of insect manure, and avoids resource waste.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and particularly relates to an insect-prevention growth-promoting foliar fertilizer.
Background
The foliar fertilizer is a fertilizer commonly used for plant growth, and has the advantages of rapid improvement of plant nutrition, promotion of crop growth, convenient use, small dosage and low use cost. The existing foliar fertilizer usually only has the nutrition function of the fertilizer and does not have the function of preventing and controlling plant pests. When a plant body is subjected to insect pests, a pesticide is required to be used for preventing and treating the plant insect pests, and a foliar fertilizer is also required to be used for promoting the growth of the plant, so that the pesticide and a foliar fertilizer are required to be used simultaneously in the cultivation process of the existing crops, the cost is high, the use is troublesome, and meanwhile, the existing chemical pesticide can also bring pollution to the environment, bring pesticide residues to the food and influence the safety of the food.
The insect species are numerous, the biological population with the most species on the earth, the breeding speed is high, the biomass is large, and the insect species are renewable resources. The insect manure (such as yellow mealworm manure, black soldier fly manure and the like) is rich in nitrogen, phosphorus and potassium, contains zinc, boron, manganese, magnesium, copper and other trace elements, is rich in microorganisms, bioactive substances and the like, and has important application value in the field of crop cultivation. However, the research and application of using the insect feces as the crop organic fertilizer are not many, so that the insect feces cannot be effectively recycled, and therefore, the method is very important for developing and utilizing the insect feces.
At present, no report on preparation of insect-preventing and growth-promoting foliar fertilizer by using insect dung soaking extract exists.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention mainly aims to provide the insect-resistant growth-promoting foliar fertilizer.
The second purpose of the invention is to provide a preparation method of the insect-prevention and growth-promotion foliar fertilizer.
The third purpose of the invention is to provide the application of the insect-resistant growth-promoting foliar fertilizer.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides an insect-prevention growth-promoting foliar fertilizer which comprises an insect excrement soaking extract, compound plant essential oil and a surfactant, wherein the insect excrement soaking extract is obtained by extracting insect excrement through an ethanol-acetone-water system.
The insect manure contains rich organic and inorganic nutrient elements, contains various amino acids and active substances after being converted by insect intestinal tracts, is extracted by adopting ethanol-acetone-water systems with different polarities, and the extracted insect manure soaking extract contains rich nutrient elements such as nitrogen, phosphorus and potassium and various active substances; the plant essential oil is a natural product, is a special aromatic substance extracted from plants, and contains components for expelling insects, resisting bacteria and preventing corrosion; the plant essential oil and the insect dung soaking extract are organically combined, so that a good insect prevention and growth promotion effect can be achieved; the surfactant can prolong the retention time of the foliar fertilizer on the leaf surface and promote the absorption and utilization of nutrient elements by the leaf surface.
Preferably, in order to enable the foliar fertilizer to play the optimal insect prevention and growth promotion effects, the foliar fertilizer comprises the following components in parts by weight:
100-120 parts of insect excrement soaking extract, 10-20 parts of composite plant essential oil and 20-30 parts of surfactant.
Preferably, the insect excrement soaked extract is a black soldier fly excrement soaked extract. The hermetia illucens belongs to hermetia diptera, is a nutritional saprophytic insect, has the characteristics of high growth speed, strong feeding capacity of larvae, high biological safety and the like, can convert various organic solid wastes such as livestock and poultry excrement, livestock and poultry corpses, kitchen waste, straws and the like, reasonably utilizes the hermetia illucens to convert the excrement generated by the organic solid wastes, and is more favorable for promoting the resource utilization of the wastes.
Preferably, in order to achieve a better insect prevention effect, the compound plant essential oil comprises folium artemisiae argyi essential oil, pepper essential oil and perilla essential oil, and the volume ratio of the folium artemisiae argyi essential oil to the pepper essential oil to the perilla essential oil is 1:1-2: 3-5.
Preferably, in order to improve the application range of the invention, the surfactant is at least one of sodium dodecyl benzene sulfonate, tween-80, span-80, OP-10, NP-10, sodium dodecyl sulfonate and stearic acid.
The invention also provides a preparation method of the insect-prevention growth-promoting foliar fertilizer, which comprises the following steps:
s1, adding the insect feces into an ethanol-acetone-water system, uniformly stirring, performing ultrasonic soaking treatment, filtering, and evaporating to remove an organic solvent to obtain an insect feces soaking extract;
s2, adding the compound plant essential oil and the surfactant into the insect dung soaking extract, and uniformly mixing to obtain the liquid insect-preventing growth-promoting foliar fertilizer.
Preferably, in order to achieve the best extraction effect of the insect manure, the feed-liquid ratio (kg/L) between the insect manure and the ethanol-acetone-water system is 1: 15-20.
Preferably, in order to achieve the best extraction effect of the insect manure, the volume concentration of the ethanol in the ethanol-acetone-water system is 35% -45%, and the volume concentration of the acetone in the ethanol-acetone-water system is 30% -40%.
Preferably, in order to obtain the best extraction effect of the insect manure, the ultrasonic power of the ultrasonic soaking treatment is 400-600W, and the soaking time is 40-60 min.
The invention also provides application of the insect-prevention growth-promoting foliar fertilizer, and specifically, the application method of the foliar fertilizer is foliar spraying, and the foliar spraying method comprises the following steps: the foliar fertilizer is prepared into a spraying solution according to the proportion of adding 2-4 liters of water to each gram of foliar fertilizer, and is sprayed on the foliar fertilizer every 7-13 days after the germination period for 1 time, wherein the spraying amount is 50-80 liters per mu.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an insect-prevention growth-promoting foliar fertilizer which comprises an insect excrement soaking extract, compound plant essential oil and a surfactant, wherein the insect excrement soaking extract is obtained by extracting insect excrement through an ethanol-acetone-water system and then is compounded with the compound plant essential oil and the surfactant to obtain the insect-prevention growth-promoting foliar fertilizer. Growth promotion tests and insect prevention effect tests of the foliar fertilizer show that the foliar fertilizer has good fertilizer effect and insect prevention effect, can remarkably promote the growth of crops, and reduces the insect pest incidence rate of the crops. Therefore, the foliar fertilizer has better insect-proof and growth-promoting effects, is beneficial to resource utilization of insect manure, and avoids resource waste.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The test methods used in the following experimental examples are all conventional methods unless otherwise specified; the materials, reagents and the like used are, unless otherwise specified, commercially available reagents and materials.
Example 1
The insect-prevention growth-promoting foliar fertilizer comprises the following components in parts by weight:
110kg of black soldier fly excrement soaking extract, 15kg of compound plant essential oil (prepared by mixing folium artemisiae argyi essential oil, pepper essential oil and perilla essential oil according to the volume ratio of 1:1.5: 4) and 80 kg of tween-8025 kg.
The preparation method of the insect-prevention growth-promoting foliar fertilizer comprises the following steps:
s1, adding the insect manure into an ethanol-acetone-water system (the volume concentration of ethanol is 40% and the volume concentration of acetone is 35%) according to a material-liquid ratio (kg/L) of 1:17.5, uniformly stirring, soaking for 50min under the ultrasonic condition with the ultrasonic power of 500W, filtering, and rotationally evaporating to remove an organic solvent to obtain an insect manure soaking extract;
s2, adding the compound plant essential oil and the Tween-80 into the insect dung soaking extract, and uniformly mixing to obtain the liquid insect-preventing growth-promoting foliar fertilizer.
Example 2
The insect-prevention growth-promoting foliar fertilizer comprises the following components in parts by weight:
100kg of black soldier fly excrement soaking extract, 10kg of compound plant essential oil (prepared by mixing folium artemisiae argyi essential oil, pepper essential oil and perilla essential oil according to the volume ratio of 1:1: 3) and 80 kg of tween-80.
The preparation method of the insect-prevention growth-promoting foliar fertilizer comprises the following steps:
s1, adding the insect dung into an ethanol-acetone-water system (the volume concentration of ethanol is 35 percent, and the volume concentration of acetone is 30 percent) according to the material-liquid ratio (kg/L) of 1:15,
stirring and mixing uniformly, soaking for 60min under the ultrasonic condition with the ultrasonic power of 400W, filtering, and performing rotary evaporation to remove the organic solvent to obtain a worm manure soaking extract;
s2, adding the compound plant essential oil and the Tween-80 into the insect dung soaking extract, and uniformly mixing to obtain the liquid insect-preventing growth-promoting foliar fertilizer.
Example 3
The insect-prevention growth-promoting foliar fertilizer comprises the following components in parts by weight:
120kg of black soldier fly excrement soaking extract, 20kg of compound plant essential oil (prepared by mixing folium artemisiae argyi essential oil, pepper essential oil and perilla essential oil according to the volume ratio of 1:1-2: 3-5) and 30kg of tween-8030.
The preparation method of the insect-prevention growth-promoting foliar fertilizer comprises the following steps:
s1, adding the insect dung into an ethanol-acetone-water system (the volume concentration of ethanol is 45 percent, and the volume concentration of acetone is 40 percent) according to the material-liquid ratio (kg/L) of 1:20,
stirring and mixing uniformly, soaking for 40min under the ultrasonic condition with the ultrasonic power of 600W, filtering, and performing rotary evaporation to remove the organic solvent to obtain a worm manure soaking extract;
s2, adding the compound plant essential oil and the surfactant into the insect dung soaking extract, and uniformly mixing to obtain the liquid insect-preventing growth-promoting foliar fertilizer.
Comparative example 1
Compared with the example 1, the composite plant essential oil of the formula of the comparative example 1 lacks the argyi leaf essential oil, and the formula of the comparative example 1 specifically comprises the following components: the coating comprises the following components in parts by weight:
110kg of black soldier fly excrement soaking extract, 15kg of compound plant essential oil (prepared by mixing pepper essential oil and perilla essential oil according to the volume ratio of 1.5: 4) and 80 kg of tween-8025 kg.
Comparative example 2
Compared with the example 1, the step S1 of the comparative example 2 is different, the comparative example 2 adopts a single ethanol water solution for extraction to obtain the insect dung soaking extract, and the step S1 of the comparative example 2 is specifically as follows: adding the insect feces into 40% ethanol solution according to a material-liquid ratio (kg/L) of 1:17.5, stirring and mixing uniformly, soaking for 50min under the ultrasonic condition with the ultrasonic power of 500W, filtering, and performing rotary evaporation to remove the organic solvent to obtain the insect feces soaking extract.
Comparative example 3
Compared with the example 1, the step S1 of the comparative example 3 is different, the comparative example 3 adopts a single aqueous acetone solution for extraction to obtain the insect dung soaking extract, and the step S1 of the comparative example 3 specifically comprises the following steps: adding the insect feces into 35% acetone solution according to a material-liquid ratio (kg/L) of 1:17.5, stirring and mixing uniformly, soaking for 50min under the ultrasonic condition with the ultrasonic power of 500W, filtering, and performing rotary evaporation to remove the organic solvent to obtain the insect feces soaking extract.
Comparative example 4
Compared with the example 1, the step S1 of the comparative example 4 is different, the volume concentration of the ethanol solution adopted by the comparative example 4 is different, and the step S1 of the comparative example 4 is specifically as follows: adding the insect feces into an ethanol-acetone-water system (the volume concentration of ethanol is 30 percent and the volume concentration of acetone is 35 percent) according to the material-liquid ratio (kg/L) of 1:17.5, uniformly stirring, soaking for 50min under the ultrasonic condition with the ultrasonic power of 500W, filtering, and rotationally evaporating to remove the organic solvent to obtain the insect feces soaking extract.
Comparative example 5
Compared with the example 1, the step S1 of the comparative example 5 is different, the volume concentration of the acetone solution adopted by the comparative example 5 is different, and the step S1 of the comparative example 5 is specifically as follows: adding the insect feces into an ethanol-acetone-water system (the volume concentration of ethanol is 40% and the volume concentration of acetone is 25%) according to a material-liquid ratio (kg/L) of 1:17.5, uniformly stirring, soaking for 50min under the ultrasonic condition with the ultrasonic power of 500W, filtering, and performing rotary evaporation to remove an organic solvent to obtain the insect feces soaking extract.
Experimental example 1 growth promoting effect of foliar fertilizer
The cabbage cultivation test is carried out in an outdoor test field, the fertilizer efficiency of the foliar fertilizer is observed, and the test unit area is 100m2Ten experimental groups of 10m each were set up2Ten experimental groups are respectively an example 1 group, an example 2 group, an example 3 group, a comparative example 1 group, a comparative example 2 group, a comparative example 3 group, a comparative example 4 group, a comparative example 5 group, a commercial foliar fertilizer (15 kg of urea, 5kg of potassium nitrate, 1.5kg of monopotassium phosphate, 10kg of magnesium sulfate, 3kg of zinc sulfate, 1.5kg of manganese sulfate, 4.5kg of active boron, 0.5kg of ammonium molybdate, 0.8kg of ethylenediamine, 0.1kg of alkyl sulfonate and 100L of water) group and a blank control group, each experimental group is provided with a sprouted pakchoi with the same seeding density, and the physical and chemical indexes of the soil for cultivation are as follows: pH is 7.24, organic matter is 15.44g/kg, total nitrogen is 1.96g/kg, total phosphorus is 1.62g/kg, total potassium is 11.58g/kg, available phosphorus is 21.26mg/kg, and quick-acting potassium is 86.53 mg/kg. The application amount of the base fertilizer is as follows: 0.27g of urea/(kg, soil), 0.13g of superphosphate/(kg, soil) and 0.25g of potassium chloride/(kg, soil).
The foliar fertilizers of the examples 1-3, the comparative examples 1-5 and the commercial foliar fertilizers are prepared into spraying solutions according to the proportion of 2-4 liters of water added to each gram of foliar fertilizer, the spraying solutions are sprayed on the foliar surfaces of corresponding experimental groups in a foliar spraying manner, the foliar fertilizers are sprayed for 1 time every 10 days, the spraying amount is 65 liters per mu, the blank control group is sprayed with the same amount of water, and other field management measures are completely consistent. After 50 days, the pakchoi was harvested, and the fresh weight, the spread opening degree, the plant height, the stem base thickness and the number of green leaves of the pakchoi were measured (the experimental results are shown in tables 1 and 2).
As shown in the results of tables 1 and 2, the foliar fertilizer can obviously increase the spread opening, the plant height, the stem base thickness and the green leaf number of the pakchoi, can obviously improve the fresh weight of the overground part of the pakchoi, and has good growth promoting effect on the growth of the pakchoi. According to the comparative example 1, the fertilizer effect of the foliar fertilizer is affected due to the fact that the composite plant essential oil is lack of the folium artemisiae argyi essential oil, the fructus zanthoxyli essential oil and the perilla essential oil, and the synergistic effect is achieved among the folium artemisiae argyi essential oil, the fructus zanthoxyli essential oil and the perilla essential oil in the composite plant essential oil, and the fertilizer effect of the foliar fertilizer can be improved due to the fact that the folium artemisiae argyi essential oil, the fructus zanthoxyli essential oil and the perilla essential oil are matched; compared with the leaf fertilizer prepared by the method in the invention, the leaf fertilizer prepared by the insect dung soaking extract extracted from the single organic solvent aqueous solution has poorer fertilizer efficiency than that of the leaf fertilizer prepared by the invention, because the insect dung is extracted by adopting an ethanol-acetone-water system with different polarities, the insect dung soaking extract contains more abundant nitrogen, phosphorus and potassium nutrient elements and other active substances, and is more beneficial to the growth of crops; compared with the comparative example 4 and the comparative example 5, the volume concentration of ethanol and acetone in an ethanol-acetone-water system can influence the extraction effect of the insect excrement soaking extract, so that the fertilizer efficiency of the foliar fertilizer is influenced, and under the condition that the volume concentration of the ethanol is 35-45% and the volume concentration of the acetone is 30-40%, the foliar fertilizer has the best fertilizer efficiency and has better growth promotion effect on crops.
TABLE 1 Effect of the experimental groups on the growth of Brassica campestris
TABLE 2 influence of the experimental groups on the fresh weight of the overground part of pakchoi
| Group of | Fresh weight/g |
| EXAMPLE 1 group | 108.79±4.16 |
| EXAMPLE 2 group | 105.55±3.87 |
| EXAMPLE 3 group | 107.06±5.63 |
| Comparative example 1 group | 97.33±4.13 |
| Comparative example 2 group | 87.89±3.47 |
| Comparative example 3 group | 88.60±2.63 |
| Comparative example 4 group | 90.76±2.46 |
| Comparative example 5 group | 91.23±2.65 |
| Commodity foliage fertilizer group | 96.54±2.34 |
| Blank control group | 70.67±2.76 |
Experimental example 2 insect-proofing effect of foliar fertilizer
The insect pests of the pakchoi mainly comprise cabbage caterpillars, cotton bollworms, aphids, grubs, mole crickets and the like, the method in the experimental example 1 is used for carrying out a pakchoi cultivation experiment in an outdoor experimental field, the insect prevention effect of the foliar fertilizer is observed, after 50 days, the insect pest incidence rate of the pakchoi is counted according to the following formula, and the experimental result is shown in table 3.
The incidence rate of the insect pests is equal to the number of the Chinese cabbage (plants) infected with the insect pests/the total number of the Chinese cabbage plants multiplied by 100 percent.
As shown in the results in Table 3, the foliar fertilizer can obviously reduce the insect pest incidence rate of the pakchoi and ensure the normal growth of the pakchoi. According to the comparative example 1, the insect prevention effect of the foliar fertilizer is affected by the lack of the folium artemisiae argyi essential oil in the composite plant essential oil, and the synergistic effect among the folium artemisiae argyi essential oil, the pepper essential oil and the perilla essential oil in the composite plant essential oil is proved, so that the insect prevention effect of the foliar fertilizer can be improved by the cooperation of the folium artemisiae argyi essential oil, the pepper essential oil and the perilla essential oil; as can be seen from the comparative examples 2 and 3, the insect dung soaking extract obtained by extracting the single organic solvent aqueous solution is adopted to prepare the foliar fertilizer, the insect prevention effect is poorer than that of the foliar fertilizer of the invention, because the insect dung is extracted by adopting an ethanol-acetone-water system with different polarities, the insect dung soaking extract contains more abundant active substances, and the insect prevention effect is more favorably improved; compared with the comparative example 4 and the comparative example 5, the volume concentration of ethanol and acetone in an ethanol-acetone-water system can influence the extraction effect of the insect excrement soaking extract, so that the insect prevention effect of the foliar fertilizer is influenced, and under the condition that the volume concentration of the ethanol is 35-45% and the volume concentration of the acetone is 30-40%, the foliar fertilizer has the optimal insect prevention effect, and the insect pest incidence rate of crops can be obviously reduced.
Table 2 influence of the experimental groups on incidence of cabbage insect damage
| Group of | Incidence of insect damage |
| EXAMPLE 1 group | 4.79％ |
| EXAMPLE 2 group | 5.52％ |
| EXAMPLE 3 group | 6.10％ |
| Comparative example 1 group | 10.63％ |
| Comparative example 2 group | 15.44％ |
| Comparative example 3 group | 16.56％ |
| Comparative example 4 group | 14.65％ |
| Comparative example 5 group | 13.57％ |
| Commodity foliage fertilizer group | 10.84％ |
| Blank control group | 25.67％ |
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (5)
1. The insect-prevention growth-promoting foliar fertilizer is characterized by comprising the following components in parts by weight: 100-120 parts of insect excrement soaking extract, 10-20 parts of composite plant essential oil and 20-30 parts of surfactant; the insect dung soaking extract is obtained by extracting insect dung through an ethanol-acetone-water system, the feed-liquid ratio of the insect dung to the ethanol-acetone-water system is 1:15-20, the volume concentration of ethanol in the ethanol-acetone-water system is 35% -45%, and the volume concentration of acetone in the ethanol-acetone-water system is 30% -40%; the insect excrement soaked extract is a black soldier fly excrement soaked extract; the composite plant essential oil comprises folium artemisiae argyi essential oil, pepper essential oil and perilla essential oil, and the volume ratio of the folium artemisiae argyi essential oil to the pepper essential oil to the perilla essential oil is 1:1-2: 3-5.
2. The foliar fertilizer for preventing insects and promoting growth as claimed in claim 1, wherein the surfactant is at least one of sodium dodecyl benzene sulfonate, tween-80, span-80, OP-10, NP-10, sodium dodecyl sulfonate and stearic acid.
3. The preparation method of the insect-prevention growth-promoting foliar fertilizer as claimed in claim 1, which is characterized by comprising the following steps:
s1, adding the insect feces into an ethanol-acetone-water system, uniformly stirring, performing ultrasonic soaking treatment, filtering, and evaporating to remove an organic solvent to obtain an insect feces soaking extract;
s2, adding the compound plant essential oil and the surfactant into the insect dung soaking extract, and uniformly mixing to obtain the liquid insect-preventing growth-promoting foliar fertilizer.
4. The preparation method according to claim 3, wherein the ultrasonic power of the ultrasonic soaking treatment is 400-600W, and the soaking time is 40-60 min.
5. The application of the insect-prevention growth-promoting foliar fertilizer as claimed in claim 1, wherein the application method of the foliar fertilizer is foliar spraying, and the foliar spraying method comprises the following steps: the foliar fertilizer is prepared into a spraying solution according to the proportion of adding 2-4 liters of water to each gram of foliar fertilizer, and is sprayed on the foliar fertilizer every 7-13 days after the germination period for 1 time, wherein the spraying amount is 50-80 liters per mu.
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Denomination of invention: A foliar fertilizer for preventing insects and promoting growth Effective date of registration: 20230713 Granted publication date: 20211001 Pledgee: Agricultural Bank of China Co.,Ltd. Foshan Jihua Sub branch Pledgor: GUANGDONG JINNONG AGRICULTURAL TECHNOLOGY CO.,LTD. Registration number: Y2023980048364 |
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