CN102172153B - Method for transplanting crop seedlings cultivated by matrix of soil in factory mode - Google Patents
Method for transplanting crop seedlings cultivated by matrix of soil in factory mode Download PDFInfo
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Abstract
The invention relates to a method for transplanting crop seedlings cultivated by a matrix of soil in a factory mode, which comprises the following specific steps: sowing crop seeds in holes of seedling cultivating trays on which the matrix of soil is scattered, or directly sowing the crop seeds in the holes of the seedling cultivating trays, and then covering the seeds with the matrix of soil; putting the seedling cultivating trays in an arc agricultural film house or a greenhouse, keeping the humidity of the matrix of soil at 50-70%, and uncovering films or opening the arc agricultural film house after the crop sprouts to enable the crop seedlings to adapt to environment, and transplanting the crop seedlings. In the method, the soil which has low cost and is easy to obtain as the matrix is adopted to cultivate crop seedlings in a factory mode, the method has low production cost and ensures that the transplanted crop seedlings recover in a short period.
Description
Technical field
The invention belongs to the crop-planting technical field; Be specifically related to a kind of crop factorial seedling growth transplanting method that utilizes soil to make matrix, be applicable to crop and part forest materials such as cotton, peanut, soybean, rape, sunflower, sesame, tomato, watermelon, cucumber, muskmelon, capsicum, tobacco, corn, millet, Chinese sorghum, paddy rice, onion, garlic.
Background technology
The crop factorial seedling growth is normally made matrix with non-earth materials such as vermiculite, the peat composed of rotten mosses, sandy soil, coconut palm powder, peanut shell, the straw that becomes thoroughly decomposed, perlites; These materials because of or have good permeability, a moisture-keeping, fertilizer-keeping; Or have light weight eutrophy, lifting and be prone to, hinder advantages such as root is few and be widely used in the crop factorial seedling growth; But have more volume disaster transportation, non-renewable, price is high, the alms bowl body is prone to loose, transplants shortcomings such as the back seedling-slowing stage is long behind the lifting.
Make matrix with soil, raw material is easy to get, and need not transport for long-distance, and cost is extremely low, and alms bowl body and root system strong adhesion behind the lifting, but be prone to loose with the alms bowl body owing to matter is heavy, reasons such as root system frangible, and can't be used as matrix by factorial seedling growth.
In the sixties in last century, because the needs of multiple cropping development, the cotton grower processes nutritive cube with soil and is applied to raising seedling of cotton.Because the nutrition-pot body is bigger, labour intensity is very big in production links such as system alms bowl, an alms bowl, transportation, can't be adopted by factorial seedling growth.
Chinese patent 02110038.1 discloses a kind of Cultivation of Cotton Seedlings Without Soil and pot-free transplanting method thereof, and this method is evenly laid on the seedbed or on the seedling-cultivating tray in the greenhouse shed with sand or coconut palm powder or vermiculite or its and is combined into the hypothallus of matrix, with the cotton seed sowing on seedling-cultivating tray; After planting cover with matrix; And it is moistening to medium matrix to spray water, regular spray nutritious liquor in the cover film afterwards, nursery stage;, takes off cotton seedling film refining seedling, lifting after coming into leaves; Be stained with root with promoting agent behind the lifting, after certain storage and haulage time, still have very high survival rate, behind the no potted-seedling transplanting that above-mentioned steps is cultivated, should note watering immediately to guarantee cotton seedling.This method is naked transplanting of no alms bowl, and labour intensity is low, but still has a little defectives: as need in time water after planting, and higher to cotton seedling quality requirement, to be prone to seedling-slowing stage long etc.
Summary of the invention
The present invention is intended to overcome existing factorial seedling growth and produces the restriction that mesostroma must be purchased; A kind of crop batch production soil matrix method for culturing and transplanting seedlings is provided; This method is matrix with soil; Soil abundance, cheap and easy to get; Effectively alleviated the matrix resource of growing tension on the one hand, also found a kind of good solution on the other hand, be particularly useful for various crop such as cotton, peanut, soybean, rape, sunflower, sesame, tomato, watermelon, cucumber, muskmelon, capsicum, tobacco, corn, millet, Chinese sorghum, paddy rice, onion, garlic for overcoming seedling-slowing stage behind the batch production shoot transplanting equipment.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of crop batch production soil matrix method for culturing and transplanting seedlings, it is in the hole, seedling-cultivating tray cave of crop (purpose crop just) planting seed after the spreading soil matrix, or directly the crop seed sowing is covered with soil matrix in the hole, cave again; Put into plastic sheeting for farm use shed or greenhouse then; Keep the soil matrix humidity 50%-70% (can be through watering or spray nutritious liquor keeps the corresponding humidity of soil; Be beneficial to seed growth, water can adopt from the seedling-cultivating tray bottom floating, overflow form such as water, also can adopt from seedling-cultivating tray top spraying or overflow form such as water); Crop emerges after take off film or open canopy refining seedling, can play transplantation of seedlings.
The inventive method goes for all crops that can adopt seed seedling-raising and part forest material etc.Below just list and lift some common crops, but the said crop of the inventive method is not limited thereto.Common crop is like cotton, peanut, soybean, rape, sunflower, sesame, tomato, watermelon, cucumber, muskmelon, capsicum, tobacco, corn, millet, Chinese sorghum, garlic, onion, paddy rice and wheat etc.
Preferably, mix the soil binder that adds soil weight 0.001-10% in the soil, said soil binder is preferably one or more in sodium cellulosate, cellulose, sodium carboxymethylcellulose pyce, methylcellulose and the polyvinyl lactam etc.
In addition, for increasing crop root quantity, enhancing crop root system intensity can spray the crop rooting promoter between nursery stage.Crop rooting promoter commonly used can be in heteroauxin, heteroauxin sodium, methyl, Nafusaku, indolebutyric acid, indolebutyric acid sodium, indolebutyric acid methyl esters and 2, the 4-D butyl ester etc. one or more.When spraying, be that the aqueous solution of 0.0001-1000mg/Kg is advisable above-claimed cpd is made into mass percentage concentration.
Preferably; A kind of crop batch production soil matrix method for culturing and transplanting seedlings; One or both in crop and the above a kind of seed of seed in the purpose crop are sowed in the same hole of seedling-cultivating tray (through watering or spray nutritious liquor makes the corresponding humidity of soil conservation, can regularly spray rooting promoter in the nursery stage) mutually for they; When refining seedling to crop root is formed the alms bowl body that is difficult for scattering or does not loose with soil matrix (during complete the tripping out of crop root of hair to alms bowl physical efficiency), play transplantation of seedlings.
So-called purpose crop is meant the crop to be transplanted (being retained) of growing seedlings; And mutually as crop be meant utilize its root system purpose crop alms bowl body is reinforced or weaken the purpose crop root from toxic action; Use so that the better crop of purpose plant growth is to sow, after playing transplantation of seedlings, be removed or the repressed crop that grows with the purpose crop.
When crop root is formed the alms bowl body that does not loose with matrix, preferably, can remove crop (mode that employing sprays will be killed as crop mutually) mutually with selective herbicide, play transplantation of seedlings then.The present invention uses foliar herbicide behind the selectivity seedling.
With the selectivity foliar herbicide remove crop seedling mutually operation can for: when transplanting preceding 1～10 day, spray one time the selectivity foliar herbicide; Perhaps when the crop seedling surpasses purpose crop seedling plant height mutually, spray once, when transplanting preceding 1～10 day, spray one time the selectivity foliar herbicide again.Can be when playing transplantation of seedlings with purpose crop seedling and the remaining seedling of crop mutually lifting and transplanting together, the crop seedling is slowly withered mutually afterwards dies, thereby only survives purpose crop seedling.The effect of selective herbicide is the crop mutually and the purpose crop seedling of planting are together separated, and promptly kills crop seedling mutually, keeps purpose crop seedling.Behind the commercially available selectivity seedling commonly used there be foliar herbicide: efficient fluazifop, the spirit of pyrrole fluorine chlorine standing grain, efficient haloxyfop-methyl are clever, Quizalotop-ethyl 、 fenoxaprop, sethoxydim (sethoxydim), clethodim, pyrithiobac-sodium, dicamba, tribenuron-methyl, Bentazon, isoproturon, fomesafen and fluorine grass are fixed etc.
Compare beneficial effect of the present invention with prior art:
Traditional factorial seedling-culturing method; If adopting soil to make matrix then can't solve the alms bowl body, seedling medium on links such as transportation lifting, plays technical problems such as alms bowl, alms bowl are prone to loose, root is easily broken; Thereby adopt materials such as vermiculite, the peat composed of rotten mosses, sandy soil, coconut palm powder, peanut shell, the straw that becomes thoroughly decomposed, perlite usually; But these materials have more volume disaster transportation, non-renewable, price is high, cohesive force is relatively poor between self particle, often need form more open little alms bowl body through the connection of root system.And little alms bowl body regular meeting is because of the vibrations spallation in the lifting transportation, thereby the naked transplanting of having to, and causes seedling-slowing stage prolongation etc. behind the crop shoot transplanting equipment, makes the factorial seedling growth cost up, and production development is very limited.
The inventive method is seedling medium with soil; Overcome factorial seedling growth and produced defectives such as mesostroma must be purchased, matrix resource growing tension; Opened up the substrate range of factorial seedling growth, made that factorial seedling growth matrix is extensively changed, generalization, its resource has obtained greatly abundant; Factorial seedling growth matrix no longer is production constraint, and the application of industrial breeding technique will further be enlarged.Simultaneously, transplant because the present invention is little alms bowl soil, the rice shoot seedling-slowing stage is short after planting, survival rate is high, so production-increasing function is obvious.Beneficial effect of the present invention is following:
1, compare with nutritive cube:
(1) be fit to factorial seedling growth: feeding block seedlings raising is because system alms bowl, sowing recruitment are more, and the alms bowl body is bigger, and problems such as the alms bowl body is prone to loose, hard transportation concentrate that the scale breeding cost is higher, hard transportation etc., extremely difficultly adapts to batch production and concentrates and grows seedlings.Compare with the present invention, strictness does not belong to same technical field in fact.Because the present invention need not make alms bowl, only be substituting of cave dish soilless-cultivated seedling technology mesostroma, but owing to can form a little alms bowl behind the lifting of the present invention, for the present invention there being a comprehensively examination assessment, this paper has carried out comparative descriptions to it.
(2) need not to make alms bowl, pendulum alms bowl, an alms bowl etc., be fit to the mechanization sowing: the present invention only is the alternative of cave dish soilless-cultivated seedling technology mesostroma, need not make alms bowl, pendulum alms bowl, play alms bowl etc., and sowing can be carried out mechanization.
(3) the fortune seedling, to plant seedling labour intensity little, easily quick, is fit to mechanization transplanting: the present invention is because the alms bowl body that forms behind the lifting is minimum, its weight only be one of percentage of conventional nutritive cube less than, alms bowl body volume is also minimum, be merely conventional nutritive cube 1/30 less than.Therefore, convenient transportation, labour intensity is little, and suitable for mechanization is transplanted.
(4) root system and matrix strong adhesion, alms bowl body are difficult for loosing: the present invention is owing to there is the effect of making crop root and rooting promoter mutually, and root system is more in little alms bowl body, root density is bigger, thereby the little alms bowl body breaking resistance that forms is big, and the alms bowl body is difficult for loosing.
2, with the soilless substrate ratio:
(1) matrix need not to buy; Can local localization: though the present invention is a kind of factorial seedling-culturing method, because of matrix is soil, various places all can be gathered voluntarily; Thereby need not to buy and long-distance transportation, will make the factorial seedling growth range of application more extensively, seedling cost is more cheap.
(2) aboundresources: the soilless substrate that the present invention must buy factorial seedling growth has in the past become soil, and all there is rich in natural resources various places, and the factorial seedling growth of making over adopts non-renewable resources to become renewable and ecological, environmental protective more.
(3) but root system and matrix strong adhesion carrying substrates form little alms bowl body, it is short to plant the back seedling-slowing stage: the present invention is owing to there is the effect of making crop root and rooting promoter mutually, and extremely many root systems can play good reinforcement effect to little alms bowl body of formation.Therefore, be prone to form fabulous little alms bowl body, can be rice shoot temporary transient nutrient and water supply is provided, also can make crop root receive certain protection simultaneously.Thereby seedling-slowing stage is short after planting.
Embodiment:
Below through several kinds of typical crop seedlings tests the inventive method is elaborated, but protection scope of the present invention is not limited thereto, all tests were all carried out in 2010.
The batch production soil matrix method for culturing and transplanting seedlings of embodiment 1, cotton
(1) embodiment:
Handle A: March 15; Corn seed (crop mutually) and each one of cotton seeds (purpose crop) are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 2cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the heteroauxin sodium water solution of concentration 30mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.After crop emerges, keep the about 60%-65% of soil moisture with the nutrient solution (contain 0.01% urea and 0.01% potassium dihydrogen phosphate, all the other are water) that contains N, P, K nutrient; When the plant height of treating maize seedling surpasses cotton seedling plant height; With the cotton field selectivity foliar herbicide efficient haloxyfop-methyl spirit spraying of 0.05% (mass percentage concentration, down together), treat to take off when cotton seedling grows 2 true leaves film and cotton is refined seedling; When promptly transplanting the preceding 7 days left and right sides April 12, spray weed killer herbicide for the second time; Continue the refining seedling to lifting, during lifting cotton seedling stem stalk mentioned with corn stem together simultaneously gently and get final product, be used for transplanting after the packing.Transplant density and be 2000 strains/667M
2(down together).
Treatments B: March 15, corn seed and each one of cotton seeds are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed, after planting the soil of the about 2cm thickness of loam cake is put into the shed that is stamped plastic sheeting for farm use afterwards.After crop emerges; Keep the about 60%-65% of soil moisture with nutrient solution (nutrient composition is identical with processing A); When the plant height of treating maize seedling surpassed cotton seedling plant height, the cotton field selectivity foliar herbicide efficient haloxyfop-methyl spirit spraying with 0.05% was treated to take off when cotton seedling grows 2 true leaves film and cotton is refined seedling; When promptly transplanting the preceding 7 days left and right sides April 12, spray weed killer herbicide for the second time; Continue the refining seedling to lifting, during lifting cotton seedling stem stalk mentioned with corn stem together simultaneously gently and get final product, be used for transplanting after the packing.
Handle C: March 15; Corn seed and each one of cotton seeds are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 2cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the heteroauxin sodium water solution of concentration 30mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.When the plant height of treating maize seedling surpasses cotton seedling plant height; Cotton field selectivity foliar herbicide efficient haloxyfop-methyl spirit spraying with 0.05%; Treat to take off when cotton seedling grows 2 true leaves film and, when promptly transplanting the preceding 7 days left and right sides April 12, spray weed killer herbicide for the second time, continue the refining seedling to lifting to cotton refining seedling; During lifting cotton seedling stem stalk and corn stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle D: March 15; With sowing of cotton seeds in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 2cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the heteroauxin sodium water solution of concentration 30mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.Treat to take off when cotton seedling grows 2 true leaves film and to cotton refining seedling to lifting, during lifting cotton seedling stem stalk mentioned gently and get final product, be used for transplanting after the packing.
Handle E: pressing Chinese patent 02110038.1 disclosed method, is the hypothallus of matrix in evenly laying with the vermiculite on the seedbed or on the seedling-cultivating tray in the greenhouse shed about March 15, and cotton seed is sowed on seedling-cultivating tray; After planting cover, and it is moistening to medium matrix to spray water, afterwards cover film with matrix; Regular spray nutritious liquor in the nursery stage is taken off film refining seedling, to left and right sides lifting on April 19 after cotton seedling comes into leaves; Be stained with root with promoting agent behind the lifting, after packing, transplant, water immediately after the transplanting.
Handle F: March 20, go up traditional feeding block seedlings raising method according to production and grow seedlings, in about April 20, transplanted.
Each result sees the following form 1:
The batch production soil matrix method for culturing and transplanting seedlings of embodiment 2, watermelon
(1) embodiment:
Handle A: March 10; Wheat and each one of watermelon seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 2cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the indolebutyric acid aqueous solution of concentration 20 mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.After crop emerges; Keep the about 60%--65% of soil moisture with the nutrient solution (contain 0.01% urea and 0.01% potassium dihydrogen phosphate, all the other are water) that contains N, P, K nutrient, when treating that the wheat seedling plant height surpasses the watermelon plant height; Watermelon selectivity foliar herbicide sethoxydim spraying with 0.05%; Treat to take off when the watermelon seedling grows 1 true leaf film and, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting to watermelon seedling refining seedling; During lifting watermelon seedling stem and remaining wheat stalk mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Treatments B: concrete processing method is referring to the treatments B of embodiment 1, and difference is handled for beginning March 10,
March 10, wheat seed and each one of watermelon seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed, after planting the soil of the about 2cm thickness of loam cake is put into the shed that is stamped plastic sheeting for farm use afterwards.After crop emerges, keep the about 60%--65% of soil humidity with nutrient solution (nutrient composition is identical with processing A), when treating that the wheat seedling plant height surpasses watermelon seedling plant height; Watermelon selectivity foliar herbicide sethoxydim spraying with 0.05%; Treat to take off when the watermelon seedling grows 1 true leaf film and, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting to watermelon refining seedling; During lifting watermelon seedling stem and wheat stalk mentioned together simultaneously gently and get final product, be used for transplanting after the packing
Handle C: March 10; Wheat seed and each one of watermelon seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 2cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the indolebutyric acid aqueous solution of concentration 20 mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.When treating that wheat or paddy rice seedling plant height surpass watermelon seedling plant height; Watermelon selectivity foliar herbicide sethoxydim spraying with 0.05%; Treat to take off when the watermelon seedling grows 1 true leaf film and, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting to watermelon refining seedling; During lifting watermelon seedling stem and wheat stalk mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle D: March 10; In the seedling-cultivating tray hole of 2/3 soil was housed, after planting the soil of the about 2cm thickness of loam cake was put into the shed that is stamped plastic sheeting for farm use afterwards with sowing of watermelon seed; Use the indolebutyric acid aqueous solution of concentration 20 mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter; Treat to take off film when watermelon grows 1 true leaf and begin to refine seedling, during lifting the watermelon stem mentioned gently and get final product, be used for after the packing transplanting to lifting.
Handle E: pressing Chinese patent 02110038.1 disclosed method, is the hypothallus of matrix in evenly laying with the vermiculite on the seedbed or on the seedling-cultivating tray in the greenhouse shed about March 10, and watermelon seed is sowed on seedling-cultivating tray; After planting cover, and it is moistening to medium matrix to spray water, afterwards cover film with matrix; Regular spray nutritious liquor in the nursery stage is taken off film refining seedling to lifting behind long 1 true leaf of watermelon seedling, be stained with root with promoting agent behind the lifting; After packing, transplant, water immediately after the transplanting.
Handle F:, go up traditional feeding block seedlings raising method according to production and grow seedlings March 15.The result of different disposal sees table 2:
The batch production soil matrix method for culturing and transplanting seedlings of embodiment 3, muskmelon
(1) embodiment:
Handle A: March 15; Rice paddy seed and each one of muskmelon seeds are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 2cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the indolebutyric acid sodium water solution of concentration 20.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.After crop emerges; Keep the about 60%--65% of soil moisture with the nutrient solution (contain 0.01% urea and 0.01% potassium dihydrogen phosphate, all the other are water) that contains N, P, K nutrient, when treating that paddy rice seedling plant height surpasses the muskmelon plant height; Muskmelon selectivity foliar herbicide Kui He spirit spraying with 0.05%%; Treat to take off film when the muskmelon seedling grows 1 true leaf and begin to refine seedling, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting muskmelon seedling stem and rice stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Treatments B: March 15, rice paddy seed and each one of muskmelon seeds are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed, after planting the soil of the about 2cm thickness of loam cake is put into the shed that is stamped plastic sheeting for farm use afterwards.After crop emerges, keep the about 60%--65% of soil humidity with nutrient solution (nutrient composition is identical with processing A), when treating that paddy rice seedling plant height surpasses muskmelon seedling plant height; Muskmelon selectivity foliar herbicide Kui He spirit spraying with 0.05%; Treat to take off film when the muskmelon seedling grows 1 true leaf and begin muskmelon refining seedling is sprayed weed killer herbicide for the second time when preceding 7 days left and right sides of transplanting, continue the refining seedling to lifting; During lifting muskmelon seedling stem and rice stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing
Handle C: March 15; Rice paddy seed and each one of muskmelon seeds are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 2cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the indolebutyric acid sodium water solution of concentration 20.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.When treating that paddy rice seedling plant height surpasses muskmelon seedling plant height; Cotton field selectivity foliar herbicide Kui He spirit spraying with 0.05%; Treat that the muskmelon seedling begins to refine seedling when growing 1 true leaf, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting muskmelon seedling stem and rice stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle D: March 15; With sowing of muskmelon seeds in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 2cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use indolebutyric acid sodium water solution soil moisture to be remained between the 60%-65% as the crop rooting promoter with concentration 20.00mg/Kg.Begin to refine seedling to lifting when waiting to grow 1 true leaf, during lifting muskmelon stem mentioned gently and get final product, be used for after the packing transplanting.
Handle E: pressing Chinese patent 02110038.1 disclosed method, is the hypothallus of matrix in evenly laying with the vermiculite on the seedbed or on the seedling-cultivating tray in the greenhouse shed about March 15, and the muskmelon kind is sowed on seedling-cultivating tray; After planting cover, and it is moistening to medium matrix to spray water, afterwards cover film with matrix; Regular spray nutritious liquor in the nursery stage is taken off film refining seedling to lifting behind long 1 true leaf of muskmelon seedling, be stained with root with promoting agent behind the lifting; After packing, transplant, water immediately after the transplanting.
Handle F:, go up traditional feeding block seedlings raising method according to production and grow seedlings March 20.
Different disposal result sees table 3:
The batch production soil matrix method for culturing and transplanting seedlings of embodiment 4, capsicum
(1) embodiment:
Handle A: March 15; Millet Seed and each one of pepper seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the indolebutyric acid sodium water solution of concentration 10mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.After crop emerges; Keep the about 60%--65% of soil moisture with the nutrient solution (contain 0.01% urea and 0.01% potassium dihydrogen phosphate, all the other are water) that contains N, P, K nutrient, when treating that millet seedling plant height surpasses the capsicum plant height; The high oxazole standing grain spirit of capsicum selectivity foliar herbicide with 0.05% spraying; Treat that the capsicum seedling begins to take off film refining seedling when growing 2 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting capsicum seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Treatments B: March 15, Millet Seed and each one of pepper seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed, after planting the soil of the about 1cm thickness of loam cake is put into the shed that is stamped plastic sheeting for farm use afterwards.After crop emerges, keep the about 60%--65% of soil humidity with nutrient solution (nutrient composition is identical with processing A), when treating that the millet plant height surpasses capsicum seedling plant height; The high oxazole standing grain spirit of capsicum selectivity foliar herbicide with 0.05% spraying; Treat that the capsicum seedling begins when growing 2 true leaves capsicum refining seedling is sprayed weed killer herbicide for the second time when preceding 7 days left and right sides of transplanting, continue the refining seedling to lifting; During lifting capsicum seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing
Handle C: March 15; Millet Seed and each one of pepper seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the indolebutyric acid sodium water solution of concentration 10 mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.When treating that millet seedling plant height surpasses capsicum seedling plant height; The high oxazole standing grain spirit of capsicum selectivity foliar herbicide with 0.05% spraying; Treat that the capsicum seedling begins to take off film refining seedling when growing 2 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting capsicum seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle D: March 15; With sowing of pepper seed in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the indolebutyric acid sodium water solution of concentration 10mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.Begin to take off film refining seedling when waiting to grow 2 true leaves to lifting, during lifting Caulis Capsici mentioned gently and get final product, be used for transplanting after the packing.
Handle E: pressing Chinese patent 02110038.1 disclosed method, is the hypothallus of matrix in evenly laying with the vermiculite on the seedbed or on the seedling-cultivating tray in the greenhouse shed about March 15, and the capsicum kind is sowed on seedling-cultivating tray; After planting cover, and it is moistening to medium matrix to spray water, afterwards cover film with matrix; Regular spray nutritious liquor in the nursery stage is taken off film refining seedling to lifting behind long 2 true leaves of capsicum seedling, be stained with root with promoting agent behind the lifting; After packing, transplant, water immediately after the transplanting.
Handle F:, go up traditional feeding block seedlings raising method according to production and grow seedlings March 20.
Different results sees the following form 4:
The batch production soil matrix method for culturing and transplanting seedlings of embodiment 5, tomato
(1) embodiment:
Handle A: March 15; Millet Seed and each one of tomato seeds are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the concentration 10.00mg/Kg indolebutyric acid aqueous solution soil moisture to be remained between the 60%-65% as the crop rooting promoter.After crop emerges; Nutrient solution with containing N, P, K nutrient (contains 0.01% urea and 0.01% potassium dihydrogen phosphate; All the other are water) keep the about 60%--65% of soil moisture, when treating that millet seedling plant height surpasses the tomato plant height, treat that with 0.2% tomato selectivity foliar herbicide pyrithiobac-sodium spraying tomato seedling begins to take off film refining seedling when growing 3 true leaves; When preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time; Continue the refining seedling to lifting, during lifting the tomato seedling stem mentioned with the millet stem together simultaneously gently and get final product, be used for transplanting after the packing.
Treatments B: March 15, Millet Seed and each one of tomato seeds are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed, after planting the soil of the about 1cm thickness of loam cake is put into the shed that is stamped plastic sheeting for farm use afterwards.After crop emerges, keep the about 60%--65% of soil humidity with nutrient solution (nutrient composition is identical with processing A), when treating that the millet plant height surpasses the tomato seedling plant height; Tomato selectivity foliar herbicide pyrithiobac-sodium spraying with 0.2%; Treat to take off when tomato seedling grows 3 true leaves film and begin tomato refining seedling is sprayed weed killer herbicide for the second time when preceding 7 days left and right sides of transplanting, continue the refining seedling to lifting; During lifting tomato seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing
Handle C: March 15; Millet Seed and each one of tomato seeds are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the concentration 10.00mg/Kg indolebutyric acid aqueous solution soil moisture to be remained between the 60%-65% as the crop rooting promoter.When treating that millet seedling plant height surpasses the tomato seedling plant height; Tomato selectivity foliar herbicide pyrithiobac-sodium spraying with 0.2%; Treat that tomato seedling begins to take off film refining seedling when growing 3 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting tomato seedling stem and wheat or rice stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle D: March 15; With sowing of tomato seeds in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the concentration 10.00mg/Kg indolebutyric acid aqueous solution soil moisture to be remained between the 60%-65% as the crop rooting promoter.Take off film when waiting to grow 3 true leaves and begin to refine seedling, during lifting the tomato stem mentioned gently and get final product, be used for after the packing transplanting to lifting.
Handle E: pressing Chinese patent 02110038.1 disclosed method, is the hypothallus of matrix in evenly laying with the vermiculite on the seedbed or on the seedling-cultivating tray in the greenhouse shed about March 15, and tomato species is sowed on seedling-cultivating tray; After planting cover, and it is moistening to medium matrix to spray water, afterwards cover film with matrix; Regular spray nutritious liquor in the nursery stage is taken off film refining seedling to lifting behind long 3 true leaves of tomato seedling, be stained with root with promoting agent behind the lifting; After packing, transplant, water immediately after the transplanting.
Handle F:, go up traditional feeding block seedlings raising method according to production and grow seedlings March 20.
Different disposal result sees table 5:
The batch production soil matrix method for culturing and transplanting seedlings of embodiment 6, sunflower
(1) embodiment:
Handle A: March 15; Sorghum seeds and each one in sunflower seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the Nafusaku aqueous solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.After crop emerges; Keep the about 60%--65% of soil moisture with the nutrient solution (contain 0.01% urea and 0.01% potassium dihydrogen phosphate, all the other are water) that contains N, P, K nutrient, when treating that Chinese sorghum seedling plant height surpasses the sunflower plant height; The high oxazole standing grain spirit of sunflower selectivity foliar herbicide with 0.05% spraying; Treat that the sunflower seedling begins to take off film refining seedling when growing 3 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting sunflower seedling stem and Chinese sorghum stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Treatments B: March 15, sorghum seeds and each one in sunflower seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed, after planting the soil of the about 1cm thickness of loam cake is put into the shed that is stamped plastic sheeting for farm use afterwards.After crop emerges, keep the about 60%--65% of soil humidity with nutrient solution (nutrient composition is identical with processing A), when treating that the Chinese sorghum plant height surpasses sunflower seedling plant height; The high oxazole standing grain spirit of sunflower selectivity foliar herbicide with 0.05% spraying; Treat to take off when the sunflower seedling grows 3 true leaves film and begin sunflower refining seedling is sprayed weed killer herbicide for the second time when preceding 7 days left and right sides of transplanting, continue the refining seedling to lifting; During lifting sunflower seedling stem and Chinese sorghum stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing
Handle C: March 15; Sorghum seeds and each one in sunflower seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the Nafusaku aqueous solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.When treating that Chinese sorghum seedling plant height surpasses sunflower seedling plant height; The high oxazole standing grain spirit of sunflower selectivity foliar herbicide with 0.05% spraying; Treat that the sunflower seedling begins to take off film refining seedling when growing 3 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting sunflower seedling stem and wheat or rice stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle D: March 15; With sowing of sunflower seed in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the Nafusaku aqueous solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.Begin to refine seedling to lifting when waiting to grow 3 true leaves, during lifting the sunflower stem mentioned gently and get final product, be used for after the packing transplanting.
Handle E: pressing Chinese patent 02110038.1 disclosed method, is the hypothallus of matrix in evenly laying with the vermiculite on the seedbed or on the seedling-cultivating tray in the greenhouse shed about March 15, and the sunflower kind is sowed on seedling-cultivating tray; After planting cover, and it is moistening to medium matrix to spray water, afterwards cover film with matrix; Regular spray nutritious liquor in the nursery stage is taken off film refining seedling to lifting behind long 3 true leaves of sunflower seedling, be stained with root with promoting agent behind the lifting; After packing, transplant, water immediately after the transplanting.
Handle F:, go up traditional feeding block seedlings raising method according to production and grow seedlings March 20.
The result of different disposal sees table 6:
The batch production soil matrix method for culturing and transplanting seedlings of embodiment 7, rape
(1) embodiment:
Handle A: September 15; Millet Seed and each one of rape seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the methyl aqueous solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.After crop emerges; Keep the about 60%--65% of soil moisture with the nutrient solution (contain 0.01% urea and 0.01% potassium dihydrogen phosphate, all the other are water) that contains N, P, K nutrient, when treating that millet seedling plant height surpasses the rape plant height; Rape selectivity foliar herbicide Kui He spirit spraying with 0.05%; Treat that Brassica campestris L seedling begins to take off film refining seedling when growing 3 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting Brassica campestris L seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Treatments B: September 15, Millet Seed and each one of rape seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed, after planting the soil of the about 1cm thickness of loam cake is put into the shed that is stamped plastic sheeting for farm use afterwards.After crop emerges, keep the about 60%--65% of soil humidity with nutrient solution (nutrient composition is identical with processing A), when treating that the millet plant height surpasses the Brassica campestris L seedling plant height; Rape selectivity foliar herbicide Kui He spirit spraying with 0.05%; Treat that Brassica campestris L seedling begins to take off film and to rape refining seedling, when preceding 7 days left and right sides of transplanting, sprays weed killer herbicide for the second time when growing 3 true leaves, continue the refining seedling to lifting; During lifting Brassica campestris L seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle C: September 15; Millet Seed and each one of rape seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the methyl aqueous solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.When treating that millet seedling plant height surpasses the Brassica campestris L seedling plant height; Rape selectivity foliar herbicide Kui He spirit spraying with 0.05%; Treat that Brassica campestris L seedling begins to take off film refining seedling when growing 3 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting Brassica campestris L seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle D: September 15; With sowing of rape seed in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the methyl aqueous solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.Begin to refine seedling to lifting when waiting to grow 3 true leaves, during lifting the rape stem mentioned gently and get final product, be used for after the packing transplanting.
Handle E: pressing Chinese patent 02110038.1 disclosed method, is the hypothallus of matrix in evenly laying with the vermiculite on the seedbed or on the seedling-cultivating tray in the greenhouse shed about September 15, and the rape kind is sowed on seedling-cultivating tray; After planting cover, and it is moistening to medium matrix to spray water, afterwards cover film with matrix; Regular spray nutritious liquor in the nursery stage is taken off film refining seedling to lifting behind long 3 true leaves of Brassica campestris L seedling, be stained with root with promoting agent behind the lifting; After packing, transplant, water immediately after the transplanting.
Handle F:, go up traditional feeding block seedlings raising method according to production and grow seedlings September 15.
The result of different disposal sees table 7:
The batch production soil matrix method for culturing and transplanting seedlings of embodiment 8, tobacco
(1) embodiment:
Handle A: March 15; Millet Seed and each one of tobacco seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the heteroauxin sodium water solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.After crop emerges; Keep the about 60%--65% of soil moisture with the nutrient solution (contain 0.01% urea and 0.01% potassium dihydrogen phosphate, all the other are water) that contains N, P, K nutrient, when treating that millet seedling plant height surpasses the tobacco plant height; Tobacco selectivity foliar herbicide sethoxydim spraying with 0.05%; Treat that the tobacco seedling begins to take off film refining seedling when growing 3 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting tobacco seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Treatments B: March 15, Millet Seed and each one of tobacco seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed, after planting the soil of the about 1cm thickness of loam cake is put into the shed that is stamped plastic sheeting for farm use afterwards.After crop emerges, keep the about 60%--65% of soil humidity with nutrient solution (nutrient composition is identical with processing A), when treating that the millet plant height surpasses tobacco seedling plant height; Tobacco selectivity foliar herbicide sethoxydim spraying with 0.05%; Treat to take off film when the tobacco seedling grows 3 true leaves and begin tobacco refining seedling is sprayed weed killer herbicide for the second time when preceding 7 days left and right sides of transplanting, continue the refining seedling to lifting; During lifting tobacco seedling stem and millet stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing
Handle C: March 15; Millet Seed and each one of tobacco seed are sowed simultaneously in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the heteroauxin sodium water solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.When treating that millet seedling plant height surpasses tobacco seedling plant height; Tobacco selectivity foliar herbicide sethoxydim spraying with 0.05%; Treat that the tobacco seedling begins to take off film refining seedling when growing 3 true leaves, when preceding 7 days left and right sides of transplanting, spray weed killer herbicide for the second time, continue the refining seedling to lifting; During lifting tobacco seedling stem and wheat or rice stem mentioned together simultaneously gently and get final product, be used for transplanting after the packing.
Handle D: March 15; With sowing of tobacco seed in the seedling-cultivating tray hole of 2/3 soil is housed; The soil of the about 1cm thickness of loam cake after planting; Put into the shed that is stamped plastic sheeting for farm use afterwards, use the heteroauxin sodium water solution of concentration 10.00mg/Kg soil moisture to be remained between the 60%-65% as the crop rooting promoter.Begin to refine seedling to lifting when waiting to grow 3 true leaves, during lifting tobacco stem mentioned gently and get final product, be used for after the packing transplanting.
Handle E: pressing Chinese patent 02110038.1 disclosed method, is the hypothallus of matrix in evenly laying with the vermiculite on the seedbed or on the seedling-cultivating tray in the greenhouse shed about March 15, and the tobacco kind is sowed on seedling-cultivating tray; After planting cover, and it is moistening to medium matrix to spray water, afterwards cover film with matrix; Regular spray nutritious liquor in the nursery stage is taken off film refining seedling to lifting behind long 3 true leaves of tobacco seedling, be stained with root with promoting agent behind the lifting; After packing, transplant, water immediately after the transplanting.
Handle F:, go up traditional feeding block seedlings raising method according to production and grow seedlings March 15.
The result of different disposal sees table 8:
Can find out by above-mentioned each embodiment; Adopt method for culturing and transplanting seedlings of the present invention (handling A, B and C) can effectively improve the planting percent and the survival rate of growing seedlings; Reduce the average seedling cost of individual plant, wherein most critical is significantly to have shortened to transplant the seedling-slowing stage of ensuing crop, and to adopt soil cheap and easy to get be matrix; Reduce production cost, improved economic benefit.
Claims (7)
1. crop batch production soil matrix method for culturing and transplanting seedlings is characterized in that, in the seedling-cultivating tray cave hole of crop seed sowing after the spreading soil matrix, or directly the crop seed sowing is covered with soil matrix in the hole, cave again; Put into plastic sheeting for farm use shed or greenhouse then, keep soil matrix humidity 50%-70%, crop emerges after take off film or open canopy refining seedling, can play transplantation of seedlings; Wherein, one or more the crop seed of doing is mutually sowed in the same hole of seedling-cultivating tray with carrying out the purpose crop seed that the seedling raising and transplanting mode plants, when refining seedling to crop root is formed the alms bowl body that does not loose with soil matrix, played transplantation of seedlings; Said mutually as crop be meant utilize its root system purpose crop alms bowl body is reinforced or weaken the purpose crop root from toxic action; Use so that the better crop of purpose plant growth is to sow, after playing transplantation of seedlings, be removed or the repressed crop that grows with the purpose crop.
2. crop batch production soil matrix method for culturing and transplanting seedlings as claimed in claim 1; It is characterized in that said crop is cotton, peanut, soybean, rape, sunflower, sesame, tomato, watermelon, cucumber, muskmelon, capsicum, onion, garlic, tobacco, corn, millet, Chinese sorghum, paddy rice or wheat.
3. according to claim 1 or claim 2 crop batch production soil matrix method for culturing and transplanting seedlings is characterized in that, adds the soil binder of soil weight 0.001-10% in the soil.
4. crop batch production soil matrix method for culturing and transplanting seedlings as claimed in claim 3 is characterized in that said soil binder is cellulose and/or methylcellulose.
5. crop batch production soil matrix method for culturing and transplanting seedlings as claimed in claim 1 is characterized in that spraying concentration is the crop rooting promoter of 0.01-30 mg/Kg between nursery stage.
6. crop batch production soil matrix method for culturing and transplanting seedlings as claimed in claim 5; It is characterized in that; Said crop rooting promoter is one or more the combination in heteroauxin, heteroauxin sodium, methyl, Nafusaku, indolebutyric acid, indolebutyric acid sodium, indolebutyric acid methyl esters, 2, the 4-D butyl ester.
7. crop batch production soil matrix method for culturing and transplanting seedlings as claimed in claim 1 is characterized in that, when crop root is formed the alms bowl body that does not loose with soil matrix, removes crop mutually with selective herbicide, plays transplantation of seedlings then.
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| CN102487677A (en) * | 2011-11-18 | 2012-06-13 | 河南省农业科学院 | Production method for multiple cropping of corn, peanut or soybean in one year |
| CN103283439B (en) * | 2013-05-13 | 2014-08-13 | 胡玲玲 | Improved cultivation method for sunflowers |
| CN103597970B (en) * | 2013-10-15 | 2015-04-15 | 江苏大学 | Seedling method for improving seedling picking success rate of transplanter |
| CN103947434B (en) * | 2014-05-12 | 2016-08-31 | 赵春 | A kind of method planting wild soybean on salt-soda soil |
| CN104067828A (en) * | 2014-07-01 | 2014-10-01 | 苏州市清水村生态农副产品生产经营专业合作社 | Planting method for sweet sorghum |
| CN105123252A (en) * | 2015-10-10 | 2015-12-09 | 郝水源 | Technology for sunflower plug seedling transplantation |
| CN106007969A (en) * | 2016-05-20 | 2016-10-12 | 扬州大学 | Seedling germination accelerant for culturing seedlings on substrate |
| CN106069094A (en) * | 2016-06-29 | 2016-11-09 | 固镇县华原家庭农场 | A kind of hardening off method improving cucumber seedling vigor |
| CN111149462A (en) * | 2020-02-24 | 2020-05-15 | 中国农业科学院棉花研究所 | Method for assisting cotton seedling emergence by using corn in saline-alkali soil |
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