CN104472169A - Method for planting cotton at muddy coastal heavy saline-alkali land - Google Patents
Method for planting cotton at muddy coastal heavy saline-alkali land Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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Abstract
The invention discloses a method for planting cotton at muddy coastal heavy saline-alkali land. The method for planting the cotton at the muddy coastal heavy saline-alkali land includes steps of soil improvement, fertilizer increase, furrowing, seeding, growing period management and harvesting, wherein the other field management measures are the same with those of the normal management method. Based on salinity and soil structure features of the muddy coastal heavy saline-alkali soil, the growth rhythm of the cotton at the saline-alkali land, and the soil improvement and fertilizer increase technology, the cotton yield and quality are improved at the saline-alkali land through regulating and controlling the cotton plant height in the whole process and using the monosomic technology for controlling reasonable fruit branch numbers.
Description
Technical field
The invention belongs to beach saline land administer and utilize technical field, be specifically related to the implantation methods of a kind of Muddy Bottoms heavy saline-alkali area at seashore cotton.
Background technology
Beach saline land is the important land resources that DEVELOPMENT OF COTTON is produced, and is also the potentiality place promoting Cotton Production ability.China's saline land gross area is more than 5.2 hundred million mu, and wherein should there be 1.4 hundred million mu of saline lands strand in cotton region, and Exploitative potential is huge, and east, cotton region is moved and become Ensuring Food Safety, stablizes a strategic measure of cotton area.The Salt-endurance of cotton is 0.4%, the good economic crops of salt resistance, but cotton germination and seeding stage salt resistance poor, and to affect by strand harsh climate feature, often occur being short of seedling disconnected ridge, remaining green when it is due to become yellow and ripe late-maturing in alkaline land cotton is produced, and causes yielding poorly, of poor benefits.Plant cotton benefit for improving saline land, domestic Duo Jia unit has carried out the research of alkaline land cotton planting technology aspect from different perspectives, achieves remarkable benefit.Wherein, " Coastal region in eastern Hebei Province cotton different land use patterns soil salt balance and the impact on emergence rate " (Wang Xiuping etc., " Agriculture of Anhui science " 2009,37 (34): 16816-16817) disclose a kind of alkaline land cotton implantation methods in a literary composition.The method thinks that alkaline land cotton slips ditch seeding method, limes marginis sowing of namely ditching, and soil moisture content is easily grasped, and salinity is low, can effectively salt reduction, the suppression soil accumulation of salt in the surface soil in spring, reaches the target of full stand and healthy seedling.Publication number CN102630451A, discloses a kind of low-lying waterlogging alkaline land cotton planting method.The method plays large ridge prior to seeding, each plantation a line cotton in the middle part of the slope of great Long both sides, by ridge polysalt, furrow draining, root region soil in the middle part of great Long slope is made to keep lower salt content, suitable moisture, realize both having alleviated cotton salt damage, avoid again the concrete grammar of damage or crop failure caused by waterlogging simultaneously.Publication number CN101147447A, discloses a kind of middle saline-alkali soil cotton cultivating method, and the method adopts the short season cotton kind of about 115 days breeding time, sowing after mid-May, ground temperature went up; Zanjon sowing is opened in employing, and plastic mulching, emerges the pusher delayed release seedling time; Density about 6000 plants/acre, does not prune, only pinches, and the control of mepiquat chloride full range, final plant height controls at about 80cm.Publication number CN101258809A, discloses a kind of alkaline land cotton pre-coating film seedling establishment method, the method be in salt content less than 0.4% and the cotton field having winter certain sleet to put aside thaw early spring after implement, reached by pre-overlay film heat, carry moisture in the soil and press down salt action.
Above-mentioned known technology mainly carries out mild or moderate alkaline land cotton culture technique from cropping pattern, Fruit variety, fertilizer practice angle, under the support of serial moderate saline-alkali soil plant cotton technology, cotton is larger in mild or moderate RS in Alkali Region cultivated area, better results to plant cotton, but be difficult to germinate and emerge in strand shale heavy saline cotton, and cotton in severe saline-alkali land plant cotton technology research in strand is less.According to retrieval, publication number CN102301906A, disclose a kind of method of planting cotton in coastal heavy saline-alkali land, the method by consolidation, winter salt water freeze irrigate, spring salt water ice melt shower, plastic mulching presses down some row measures such as salt soil moisture conservation, reduce Levant Cotton Root layer soil salt content, ensure the normal growth of cotton.Publication number CN102550192A, disclose a kind of cotton in severe saline-alkali land fertilization method, the method, on the basis in cotton stalk also field, adopts the fertilizing method that quick-acting fertilizer combines with Controlled Release Fertilizer, soil fertilizer combines with foliage fertilizer, foliage fertilizer combines with the later stage in earlier stage.These two patented technologies solve shortage of fresh water district pressure salt problem respectively by the salt water technology of freezing, and solve alkaline land cotton fertilizer loss problem by economic fertilizing method.According to domestic literature inquiry, for Muddy Bottoms heavy saline-alkali area at seashore, with salt reduction of improving the soil foster and apply fertilizer into key technology plant cotton technology research there is not been reported.
And Muddy Bottoms heavy saline-alkali area at seashore soil total salt amount is high, sticky weight of soil property, permeability extreme difference, the content of organic matter are low, cause cotton emerge difficulty, send out seedling difficulty; Heavy RS in Alkali Region, strand climate characteristic be spring rainfall few, evaporation discharge be the 3-3.9 of rainfall doubly, summer, rainfall was concentrated, and wherein July is the most concentrated, and cause cotton field not send out seedling prosperous length in mid-term early stage, it is late-maturing that the later stage is remaining green when it is due to become yellow and ripe, affects output of cotton and quality.
Summary of the invention
The object of this invention is to provide the implantation methods of a kind of Muddy Bottoms heavy saline-alkali area at seashore cotton, solve the Muddy Bottoms heavy saline-alkali area at seashore cotton existed in prior art emerge complete, yield poorly, inferior problem.
The technical solution adopted in the present invention is, the implantation methods of a kind of Muddy Bottoms heavy saline-alkali area at seashore cotton, and concrete steps are:
A, Soil building: use ardealite 1,000 thousand grams/acre, humus double centner/mu, slow-release fertilizer 40,000 grams/acre, cow dung 7 sides/mu mid-April, rake is revolved in deep ploughing makes above-mentioned fertilizer mix with 30 centimetres of dark soil;
B, the ditch that slips are sowed: rotary plow is installed corrugate device, output wide 60 centimetres with revolving, the ditch of dark 30 centimetres simultaneously, and ditch is apart from 60 centimetres; The last ten-days period in April keep off native segmentation in ditch and pour water, and every section is 10-15 rice, and water layer reaches 20 centimetres, subsequently natural leaching; When after 1 day, soil moisture content is suitable for, namely soil relative water content is when 70%-80%, at waterline place artificial dibbling, and every cave 3-4 grain, cave is apart from 20 centimetres; After planting overlay film on timely mechanical ditch, adjustment sower clean-up scraper, overlying soil 2-3 cm thick; After emerging, cooling of punching in time, puts seedling firming in time when cotton seedling grows to close with mulch film;
C, growing season management:
C1, reduction plant height
Carry out omnidistance quantification to regulate and control, spray after cotton buddings the 1st time, during cotton 7-9 blade, control plant height is 18-20 centimetre, stem daily growth amount 0.4-0.7 centimetre, and red shank, than being 0.5-0.6, uses mepiquat chloride 0.5-1.0g/667m
2, be watered 15kg and spray, strong sprout is surely long, short early blossoming; Spray for 2nd time in the Sheng flower bud phase, 10-15 blade, plant height is 45-50 centimetre, stem daily growth amount 1.0-1.4 centimetre, and red shank, than being 0.55-0.65, uses mepiquat chloride 2.0-3.0g/667m
2be watered 15kg to spray, promote that cotton steadily and surely grows, postpone envelope ridge; Spray at initial bloom stage 3rd time, more than 16 blades, plant height is 70-80 centimetre, stem daily growth amount 1.8-2.4 centimetre, and red shank, than being 0.60-0.70, uses mepiquat chloride 4.0-5.0g/667m
2be watered 30kg to spray, prevent remaining green when it is due to become yellow and ripe late-maturing; The 4th sprays at full-bloom stage, plant height 100-120 centimetre, stem daily growth amount 1.4-1.8 centimetre, and red shank, than being 0.70-0.80, uses 6.0-8.0g/667m
2be watered 30kg to spray, control the growth of the top and superfluous bud of side shoot, reduce closing;
Heavy saline cotton uses mepiquat chloride 14 ~ 16g/667m the time of infertility
2, make cotton top-three leaves lower than top four leaf all the time, control top not prosperous length.Average stem internode 4-5 centimetre, plant height controls at 95-105 centimetre.
C2, minimizing fruit branch number of units
Control the line-spacing 60 centimetres of cotton plant, spacing in the rows 20 centimetres, every mu of density is increased to 5500; Under conditions of high density, simplify training, early pinch, make fruit branch number of units reduce to 9-10, reduce invalid fruit branch, increase effective bell and the front flower of frost;
D, results: cotton boll fully ftractures after blow-of-cottons and picks in time;
Other field management measures are with Routine Management method.
Feature of the present invention is also,
In humus, the content of organic butt is not less than 56%, and the content of humus butt is not less than 38%.
N, P of slow-release fertilizer
2o
5and K
2o content is respectively 18%, 20% and 7%.
The invention has the beneficial effects as follows:
Saline and alkaline for strand shale heavy saline is high, poor permeability, the content of organic matter are low causes saline land to plant cotton surviving the large technical barrier of difficulty, based on Soil building, for the purpose of full stand, abridged edition, volume increase, carry out the research of Muddy Bottoms heavy saline-alkali area at seashore cotton yield efficient upgrading culture technique, through experimental study and production practices for many years, form that " Muddy Bottoms heavy saline-alkali area at seashore " changes two controls " and increase production and improve productivity upgrading plant cotton technology; being intended to plant cotton for shale heavy saline provides technical support, for the cotton east strategy of moving provides model.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
For strand shale heavy saline soil salt and soil structure feature, and the rule of alkaline land cotton growth, the present invention is based on " Soil building " technology, by Regulation in all life process cotton plant height, " two subtract " (reduce plant height and the reduce fruit branch number of units) technology controlling reasonable fruit branch number is safeguard, reaches alkaline land cotton increasing yield and improving quality.
The invention provides the implantation methods of a kind of Muddy Bottoms heavy saline-alkali area at seashore cotton, concrete steps are:
A, Soil building: use ardealite (chemical fertilizer factory's purchase) 1,000 thousand grams/acre mid-April, humus (cover fertile industry and produce by west, organic butt>=56, humus butt>=38) double centner/mu, slow-release fertilizer (Stanley board, N, P
2o
5, K
2o content is 18,20,7) 40,000 grams/acre, cow dung 7 sides/mu, rake is revolved in deep ploughing makes it mix with 30 centimetres of soil;
B, the ditch that slips are sowed: rotary plow is installed corrugate device, output wide 60 centimetres with revolving, the ditch of dark 30 centimetres simultaneously, and ditch is apart from 60 centimetres; The last ten-days period in April keep off native segmentation (10-15 rice) in ditch and pour water, and water layer reaches 20 centimetres, subsequently natural leaching; After 1 day when soil moisture content is suitable for (relative water content of soil is 70%-80%), at waterline place artificial dibbling, every cave 3-4 grain, cave is apart from 20 centimetres; After planting overlay film on timely mechanical ditch, adjustment sower clean-up scraper, overlying soil 2-3 cm thick; After emerging, cooling of punching in time, control temperature is below 40 DEG C; Seedling firming is put in time when cotton seedling grows to close with mulch film;
C, growing season management:
C1, reduction plant height
Carry out omnidistance quantification to regulate and control, spray after cotton buddings the 1st time, during cotton 7-9 blade, desirable plant height is 18-20 centimetre, stem daily growth amount 0.4-0.7 centimetre, and red shank, than being 0.5-0.6, uses mepiquat chloride 0.5-1.0g/667m
2, be watered 15kg and spray, strong sprout is surely long, short early blossoming; Containing the flower bud phase, 10-15 blade 2nd time, desirable plant height is 45-50 centimetre, stem daily growth amount 1.0-1.4 centimetre, and red shank, than being 0.55-0.65, uses mepiquat chloride 2.0-3.0g/667m
2be watered 15kg to spray, promote that cotton steadily and surely grows, postpone envelope ridge; 3rd time at initial bloom stage, more than 16 blades, desirable plant height is 70-80 centimetre, stem daily growth amount 1.8-2.4 centimetre, and red shank, than for 0.60-0.70, uses mepiquat chloride 4.0-5.0g/667m
2be watered 30kg to spray, prevent remaining green when it is due to become yellow and ripe late-maturing; The 4th is at full-bloom stage, and desirable plant height 100-120 centimetre, stem daily growth amount 1.4-1.8 centimetre, red shank, than being 0.70-0.80, uses mepiquat chloride 6.0-8.0g/667m
2be watered 30kg to spray, the growth of the top and superfluous bud of major control side shoot, reduce closing.
Heavy saline cotton uses mepiquat chloride 14 ~ 16g/667m the time of infertility
2, concrete operations can be determined according to kind, weather and growth of cereal crop seedlings growing way, make cotton top-three leaves lower than top four leaf all the time, control top not prosperous length.Average stem internode 4-5 centimetre, plant height controls at 95-105 centimetre.
C2, minimizing fruit branch number of units
Control the line-spacing 55-65 centimetre of cotton plant, spacing in the rows 15-25 centimetre, every mu of density is 5500, under conditions of high density, simplify training, early pinch, make fruit branch number of units reduce to 9-10,1-2 fruit branch fewer than Traditional Method, reduces invalid fruit branch, spends before increasing effective bell and frost.
D, results: cotton boll fully ftractures after blow-of-cottons and picks in time;
Other NM field management measures are with Routine Management method.
Adopt above-mentioned implantation methods, producible beneficial effect is as follows:
(1) enforcement of Soil building technology is on the impact of soil structure: effect is by applying the modifying agent of a certain proportion of ardealite, humus, slow-release fertilizer, cow dung composition, and can change soil texture and structure, macrostructure aggregate increases; Soil fertility increases, and salinity reduces.Concrete effect is as follows:
Table 1 is on the impact of soil aggregation body burden
Adopt artificial point sieve method to soil aggregate amounts analysis at different levels before and after process, result shows, the macrostructure content of >0.25mm is 9.56%, <0.25mm microstructure content is 85.39%, soil structure extreme difference.Improve the soil after process, had the macrostructure of >5mm, the macrostructure content of >0.25mm is 25.78%, <0.25mm microstructure content is 51.54%, microstructure reduces 39.64%, and macrostructure increases, and soil structure change obviously.
(2) Soil building is on the impact of total soil phosphorus and pH value
By cotton growing experiments of improving the soil in strand, Cao Feidian district shale heavy saline, result shows, after improving the soil, total soil phosphorus declines by a big margin, and drops to 0.4% by 0.52%; P in soil H value also declines to some extent, and pH value is reduced to 7.56 by 7.97.
(3) Soil building is on the impact of soil fertility: soil by inquiry Hebei province's Tangshan coast plants cotton region soil fertility (see table 2), the feature with " low, the poor nitrogen of the content of organic matter, scarce phosphorus, rich potassium " can be found out heavy salinizedly, comprehensive analysis soil salinization degree and field topsoil nutrient content, propose cotton field, heavy salinized ground and carry out balance fertilizing, the fertilization principle of " heavy dressing fertilizer; increasing the p application rate mends nitrogen fertilizer application " should be grasped.
Cotton region soil fertility is mainly planted in strand, table 2 Hebei
Within 2013, apply Soil building technology of the present invention in farm Binhai Agricultural Research Institute of Hebei Academy of Agricultural and Forestry Sciences of Cao Feidian district 11 modern agriculture achievements conversion base, use ardealite 1,000 thousand grams/acre, humus double centner/mu, slow-release fertilizer 40,000 grams/acre, cow dung 7 sides/mu, rake is revolved in deep ploughing makes it mix with 30 centimetres of soil.Contrast is composite fertilizer's (N, P, K content is 15) 40,000 grams/acre with conventional method.Get 0-40 cm layer of soil by the end of May to measure, single meter of receiving produces after autumn, the results are shown in Table 3.
Table 3 Soil building is on the impact of heavy saline-alkali area at seashore soil and output of cotton
Strand geavy salt alkaline earth is after Soil building process, and total salt content reduces, and the full N of soil nutrient elements, available P and organic matter are improved, and active potassic slightly declines.Soil building technology of the present invention, reduce the undesirable condition improving strand geavy salt alkaline earth " lack the rich K of the poor P of N, the content of organic matter is low ", reduce the harm of harmful salinity, ensure that the normal growth of cotton, output increases.
(4) full range control, control plant height technology are on the impact of output of cotton: the control of mepiquat chloride morningization, dutyization control, full range control, cotton plant height controls at 95 cm, fruit branch shortened internodes, cotton field ventilation and penetrating light, mould ideotype, be conducive to nutriment to the distribution of reproductive organs and knot bell, reduce fruit abscission rate, Boll probability increases.Concrete effect is as follows:
2011-2012 is carrying out " cotton mepiquat chloride time of application and dose are on the impact of output of cotton " test.Cotton variety is the Handan 7860 of establishing in large scale, and test field total soil phosphorus 0.5%, density is every mu of 5500 strains.
Table 4 mepiquat chloride Dressing date and consumption are on the impact of output of cotton
According to result of the test (see table 4) and cotton region production practice investigation, best use age and usage amount are in table 5.Spray mepiquat chloride after cotton buddings 1st time, during cotton 7-9 blade, desirable plant height is 18-20 centimetre, stem daily growth amount 0.4-0.7 centimetre, and red shank, than being 0.5-0.6, uses 0.5-1.0g/667m
2, be watered 15kg and spray, can promote root system development, strong sprout is surely long, can promote that cotton nutrient growth transforms to reproductive growth, short early blossoming; Spray mepiquat chloride for 2nd time in the Sheng flower bud phase, 10-15 blade, desirable plant height is 45-50 centimetre, stem daily growth amount 1.0-1.4 centimetre, and red shank, than being 0.55-0.65, uses mepiquat chloride 2.0-3.0g/667m
2be watered 15kg to spray, main promotion cotton steadily and surely grows, and is beneficial to and moulds ideotype, and optimization canopy structure postpones envelope ridge, promotes that morning ties bell and Boll Development, strengthens improving activity of root system, simplifies training in mid-term; Spray mepiquat chloride 3rd time, more than initial bloom stage 16 blades, desirable plant height is 70-80 centimetre, stem daily growth amount 1.8-2.4 centimetre, and red shank, than being 0.60-0.70, uses 4.0-5.0g/667m
2be watered 30kg to spray, be conducive to increasing bell weight, prevent remaining green when it is due to become yellow and ripe late-maturing, increase peach in early autumn, simplify later stage training; The 4th sprays mepiquat chloride, and at full-bloom stage, desirable plant height 100-120 centimetre, stem daily growth amount 1.4-1.8 centimetre, red shank, than being 0.70-0.80, uses 6.0-8.0g/667m after pinching
2be watered 30kg to spray, the growth of the top and superfluous bud of major control side shoot, reduce closing.
Table 5 alkaline land cotton mepiquat chloride optimization control means quantizating index
Alkaline land cotton uses mepiquat chloride 14 ~ 16g/667m the time of infertility
2, concrete operations can be determined according to kind, weather and growth of cereal crop seedlings growing way, make cotton top-three leaves lower than top four leaf all the time, control top not prosperous length.Average stem internode 4-5 centimetre, plant height controls at 95-105 centimetre.
(5) reduce fruit branch number to the impact of output of cotton: early pinch, make fruit branch number reduce 1-2, reduce invalid fruit branch, avoid heavy saline cotton remaining green when it is due to become yellow and ripe late-maturing, increase effective bell, flower rate before raising frost, thus improve cotton quality and output.Select heavy saline cotton field to carry out different Topping Time to test and demonstration in Cao Feidian district of Hebei province.Result of the test (see table 6) shows, the heart of in good time pinching can abolish cotton apical dominance, reduces invalid fruit branch and consumes the apprentice of liquid manure, and promote cotton plant early to tie bell, tie bell more, reduce and come off, before frost, flower rate increases, and has obvious the effect of increasing income.
The impact of table 6 different Topping Time counterweight alkaline land cotton proterties and output
Specific embodiment
Be positioned at Cao Feidian district of Hebei province, belong to the moistening continental monsoon climate in warm temperate zone half, annual rainfall average out to 635.7mm, rainfall integrated distribution is in 6 ~ September, and account for 81.7% of annual rainfall, wherein July is the most concentrated.Rainfall space-time distributes the uneven climate characteristic determining the summer flood of this area's spring drought.This district's saline-alkali soil type, based on NaCl, belongs to lagoonal deposition matrix, and quality is sticky heavy, and topsoil salt content more than 0.8%, belongs to strand shale heavy saline.
1, ardealite (chemical fertilizer factory's purchase) 1,000 thousand grams/acre, humus (west is covered fertile industry and produced, organic butt>=56, humus butt>=38) double centner/mu, slow-release fertilizer (Stanley board, N, P is used mid-April
2o
5, K
2o content is 18,20,7) 40,000 grams/acre, cow dung 7 sides/mu, deep plough 30 centimetres.
2, the ditch that slips is sowed: corrugate device installed on request by rotary plow, outputs wide 60 centimetres with revolving, the ditch of dark 30 centimetres simultaneously, and ditch is apart from 60 centimetres.
3, in ditch on April 25, the native segmentation of gear (10-15 rice) is poured water, and water layer reaches 20 centimetres, subsequently natural leaching.
4, when after 1 day, soil moisture content is suitable for, at waterline place artificial dibbling, every cave 3-4 grain, cave is apart from 20 centimetres.After planting overlay film on timely mechanical ditch, adjustment sower clean-up scraper, overlying soil 2-3 cm thick.After emerging, cooling of punching in time, puts seedling firming in time when cotton seedling grows to close with mulch film.
5, put early thinning after seedling, final singling when growing to 3-4 sheet true leaf, every mu is stayed seedling about 5500.Repeatedly change control on a small quantity, squaring period, contain the flower bud phase, initial bloom stage and full-bloom stage spray mepiquat chloride 0.5 gram respectively, 2.0 grams, 5.0 grams and 6.0, make cotton top-three leaves lower than top four leaf all the time, do not stand out.July 15 pinched.
6, other NM field management measures are with Routine Management method.
7, according to the method described above, in late April, 2013 is sowed, and adopt Early-medium maturing variety Handan 7860, emergence rate reaches 82%, planting percent reaches more than 80%, and plant height controls at 103 centimetres, fruit branch number 10.1, and empty branch is few, flower rate 93.5% before frost, cotton quality improves, average yield per mu unginned cotton 215 kilograms.And contrasting plot emergence rate below 40% around, cotton cannot normal growth.
Claims (3)
1. an implantation methods for Muddy Bottoms heavy saline-alkali area at seashore cotton, is characterized in that, concrete steps are:
A, Soil building: use ardealite 1,000 thousand grams/acre, humus double centner/mu, slow-release fertilizer 40,000 grams/acre, cow dung 7 sides/mu mid-April, rake is revolved in deep ploughing makes above-mentioned fertilizer mix with 30 centimetres of dark soil;
B, the ditch that slips are sowed: rotary plow is installed corrugate device, output wide 60 centimetres with revolving, the ditch of dark 30 centimetres simultaneously, and ditch is apart from 60 centimetres; The last ten-days period in April keep off native segmentation in ditch and pour water, and every section is 10-15 rice, and water layer reaches 20 centimetres, subsequently natural leaching; When after 1 day, soil moisture content is suitable for, namely soil relative water content is when 70%-80%, at waterline place artificial dibbling, and every cave 3-4 grain, cave is apart from 20 centimetres; After planting overlay film on timely mechanical ditch, adjustment sower clean-up scraper, overlying soil 2-3 cm thick; After emerging, cooling of punching in time, puts seedling firming in time when cotton seedling grows to close with mulch film;
C, growing season management:
C1, reduction plant height
Carry out omnidistance quantification to regulate and control, spray after cotton buddings the 1st time, during cotton 7-9 blade, control plant height is 18-20 centimetre, stem daily growth amount 0.4-0.7 centimetre, and red shank, than being 0.5-0.6, uses mepiquat chloride 0.5-1.0g/667m
2, be watered 15kg and spray, strong sprout is surely long, short early blossoming; Spray for 2nd time in the Sheng flower bud phase, 10-15 blade, plant height is 45-50 centimetre, stem daily growth amount 1.0-1.4 centimetre, and red shank, than being 0.55-0.65, uses mepiquat chloride 2.0-3.0g/667m
2be watered 15kg to spray, promote that cotton steadily and surely grows, postpone envelope ridge; Spray at initial bloom stage 3rd time, more than 16 blades, plant height is 70-80 centimetre, stem daily growth amount 1.8-2.4 centimetre, and red shank, than being 0.60-0.70, uses mepiquat chloride 4.0-5.0g/667m
2be watered 30kg to spray, prevent remaining green when it is due to become yellow and ripe late-maturing; The 4th sprays at full-bloom stage, plant height 100-120 centimetre, stem daily growth amount 1.4-1.8 centimetre, and red shank, than being 0.70-0.80, uses 6.0-8.0g/667m
2be watered 30kg to spray, control the growth of the top and superfluous bud of side shoot, reduce closing;
Heavy saline cotton uses mepiquat chloride 14 ~ 16g/667m the time of infertility
2, make cotton top-three leaves lower than top four leaf all the time, control top not prosperous length, average stem internode 4-5 centimetre, plant height controls at 95-105 centimetre;
C2, minimizing fruit branch number of units
Control the line-spacing 60 centimetres of cotton plant, spacing in the rows 20 centimetres, every mu of density is increased to 5500; Under conditions of high density, simplify training, early pinch, make fruit branch number of units reduce to 9-10, reduce invalid fruit branch, increase effective bell and the front flower of frost;
D, results: cotton boll fully ftractures after blow-of-cottons and picks in time;
Other field management measures are with Routine Management method.
2. the implantation methods of Muddy Bottoms heavy saline-alkali area at seashore cotton according to claim 1, it is characterized in that, in described humus, the content of organic butt is not less than 56%, and the content of humus butt is not less than 38%.
3. the implantation methods of Muddy Bottoms heavy saline-alkali area at seashore cotton according to claim 1, is characterized in that, N, P of described slow-release fertilizer
2o
5and K
2o content is respectively 18%, 20% and 7%.
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| CN105009894A (en) * | 2015-07-09 | 2015-11-04 | 沧州市农林科学院 | Cotton plantation method suitable for saline-alkali dry land |
| CN106797798A (en) * | 2017-03-30 | 2017-06-06 | 山东棉花研究中心 | A kind of light simplified cultivation method of beach saline land short season cotton open field live broadcast |
| CN110122251A (en) * | 2019-07-02 | 2019-08-16 | 沧州市农林科学院 | A kind of cotton cultivation method suitable for coastal saline-alkali Dryland climate type |
| CN112210387A (en) * | 2020-10-30 | 2021-01-12 | 青岛九天智慧农业集团有限公司 | Soil directional conditioner special for saline-alkali soil cotton and method for planting cotton in saline-alkali soil |
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| CN105009894A (en) * | 2015-07-09 | 2015-11-04 | 沧州市农林科学院 | Cotton plantation method suitable for saline-alkali dry land |
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| CN112210387A (en) * | 2020-10-30 | 2021-01-12 | 青岛九天智慧农业集团有限公司 | Soil directional conditioner special for saline-alkali soil cotton and method for planting cotton in saline-alkali soil |
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