(1) Winter rapeseed area in the upper reaches of the Yangtze River. Including Sichuan, Chongqing, Guizhou, Yunnan and western Hubei.
Fertilization principle
(1) According to the results of soil testing and formula fertilization, determine the reasonable amount of nitrogen, phosphorus and potassium fertilizer, green and efficient fertilization; (2) the application of nitrogen fertilizer in different applications, appropriately reduce the application rate of nitrogen fertilizer, high-yield fields to grasp the application of manure, simplify the middle and low-yield fields (3) According to the soil effective boron content, appropriate amount of boron fertilizer; (4) increase the application of organic fertilizer, promote the cooperation of organic and inorganic fertilizers, increase the strength of straw returning; (5) acidification of severe soil application of alkaline fertilizer ;
(6) Fertilizer application should be combined with other high-yield and high-quality cultivation techniques, especially attention should be paid to increasing planting density, ditching and reducing stains, and controlling weeds; (7) Pay attention to the selection of resistant varieties in the production area of ​​clubroot disease.
2. Fertilization advice
(1) Recommend 20-11-10 (N-P2O5-K2O, boron) or similar formula special fertilizer; conditional production area can recommend 25-7-8 (N-P2O5-K2O, boron) or similar formula The rapeseed special slow (control) release formula fertilizer; (2) the production level of 200 kg / acre: when the former crop is rice, the recommended dosage of formula fertilizer is 50 kg / mu, and the wintering seedling fertilizer is 5-8 kg/mu. Fertilizer topdressing urea 5 ~ 8 kg / acre; or one-time application of rapeseed special slow (control) release formula fertilizer 60 kg / mu. When the former crop is tobacco or soybean, the fertilization amount can be reduced by about 10% as appropriate; (3) the yield level is 150-200 kg/mu: when the front crop is rice, the recommended dosage of formula fertilizer is 40-50 kg/mu, wintering seedling Topdressing urea 5-8 kg/mu, manure composting urea 3~5 kg/mu; or one-time application of rapeseed special slow (control) release formula fertilizer 50 kg/mu. When the former crop is tobacco or soybean, the fertilization amount can be reduced by about 10% as appropriate; (4) The yield level is 100-150 kg/mu: when the former crop is rice, the recommended dosage of formula fertilizer is 35-40 kg/mu, and the wintering seedling is used. Topdressing urea 5 ~ 8 kg / acre; or one-time application of rapeseed special slow (control) release formula fertilizer 40 kg / mu. When the former crop is tobacco or soybean, the fertilization amount can be reduced by about 10% as appropriate; (5) the yield level is below 100 kg/mu: the recommended dosage of formula fertilizer is 30-40 kg/mu. Or a single-use rapeseed special slow (control) release formula fertilizer 30 kg / mu.
(2) Winter rapeseed area in the middle and lower reaches of the Yangtze River. Including Anhui, Jiangsu, Zhejiang and most of Hubei.
Fertilization principle
(1) According to the soil fertilization results, determine the reasonable amount of nitrogen, phosphorus and potassium fertilizer, appropriately reduce the amount of nitrogen and phosphorus fertilizer, and determine the reasonable ratio of nitrogen, phosphorus and potassium fertilizer; (2) transplanting rapeseed based fertilizer deep application, live rapeseed seed ectopic simulcast, To achieve concentrated application of fertilizers and improve nutrient use efficiency; (3) to supplement boron fertilizer according to the effective boron content of soil; (4) increase the intensity of straw returning to the field, and promote the cooperation of organic and inorganic fertilizers; (5) acidification and serious soil application (6) Fertilizer application should be combined with other high-yield and high-quality cultivation techniques, especially the need to pay attention to increase planting density, control weeds, and direct broadcast of rapeseed for early sowing; (7) pay attention to prevention and control of sclerotia.
2. Fertilization advice
(1) Recommend 18-10-12 (N-P2O5-K2O, boron) or similar formula fertilizer; conditional production area can recommend 25-7-8 (N-P2O5-K2O, boron) or similar formula The rapeseed special slow (control) release formula fertilizer; (2) the production level of 200 kg / mu or more: the recommended dosage of formula fertilizer 50 kg / mu, the wintering seedling fertilizer surging urea 5 ~ 8 kg / mu, manure fertilizer surging urea 5 ~ 8 kg / mu. Or a single-use rapeseed special slow (control) release formula fertilizer 60 kg / mu; (3) production level 150 ~ 200 kg / acre: formula fertilizer recommended dosage 40 ~ 50 kg / acre, wintering seedlings fertilizer urea 5 ~ 8 Kilograms/mu, manure application of urea 3 to 5 kg / mu. Or a one-time application of rapeseed special slow (control) release formula fertilizer 50 kg / mu; (4) production level of 100 ~ 150 kg / acre: recommended dosage of formula fertilizer 35 ~ 40 kg / acre, manure fertilizer with urea 5 ~ 8 kg /mu. Or a one-time application of rapeseed special slow (control) release formula fertilizer 40 kg / mu; (5) production level of 100 kg / mu or less: recommended dosage of formula fertilizer 25 ~ 30 kg / acre, manure fertilizer with urea 3 ~ 5 kg / mu. Or a single-use rapeseed special slow (control) release formula fertilizer 30 kg / mu.
(3) Three-cooked winter rapeseed area. Including Hunan, Jiangxi and Guangxi.
Fertilization principle
(1) According to the results of fertilization of soil testing formula, determine the reasonable dosage and ratio of nitrogen, phosphorus and potassium fertilizer, and pay attention to the application of manure fertilizer.
(2) According to the soil effective boron content, appropriate amount of boron fertilizer; promote the application of magnesium-containing fertilizer; (3) in the sulfur-deficient area can be applied sulfur 2 ~ 3 kg / acre, if other sulfur-containing fertilizers are used, sulfur can be reduced (4) increase the strength of straw returning to the field, and promote the combination of organic and inorganic fertilizers; (5) increase the application of alkaline fertilizers in acidified soil; (6) increase the density of rapeseed planting, pay attention to open the trenches, and prevent the waterlogging of the fields. Control weeds; (7) pay attention to prevention and control of sclerotinia.
2. Fertilization advice
(1) Recommend 18-8-14 (N-P2O5-K2O, boron) or similar formula fertilizer; conditional production area can recommend 25-7-8 (N-P2O5-K2O, boron) or similar formula The rapeseed special slow (control) release formula fertilizer; (2) the production level of 180 kg / mu or more: the recommended dosage of formula fertilizer 50 kg / mu, the manure fertilizer 5 to 8 kg / mu. Or a one-time application of rapeseed special slow (control) release formula fertilizer 50 kg / mu; (3) production level 150 ~ 180 kg / acre: formula fertilizer recommended dosage of 40 ~ 45 kg / acre, manure fertilizer with urea 5 ~ 8 kg /mu. Or a single-use rapeseed special slow (control) release formula fertilizer 40 ~ 50 kg / ag; (4) production level of 100 ~ 150 kg / acre: recommended dosage of formula fertilizer 35 ~ 40 kg / acre, manure fertilizer with urea 3 ~ 5 kg / mu. Or a one-time application of rapeseed special slow (control) release formula fertilizer 40 kg / mu; (5) production level of 100 kg / mu or less: recommended dosage of formula fertilizer 25 ~ 30 kg / acre, manure fertilizer with urea 3 ~ 5 kg / mu. Or a single-use rapeseed special slow (control) release formula fertilizer 30 kg / mu.
(4) Huanghuai winter rapeseed area. It mainly includes Shaanxi and Henan winter rapeseed areas.
Fertilization principle
(1) According to the results of soil testing and formula fertilization, determine the reasonable amount of nitrogen, phosphorus and potassium fertilizer, appropriately reduce the amount of nitrogen and potassium fertilizer, and determine the reasonable ratio of nitrogen, phosphorus and potassium fertilizer; (2) transplanting rapeseed based fertilizer deep application, live rapeseed seed ectopic simulcast, To achieve centralized application of fertilizers and improve nutrient utilization efficiency; (3) to supplement boron fertilizer according to the effective boron content of soil; (4) to increase the strength of straw returning, to promote straw cover insulation and to promote the cooperation of organic and inorganic fertilizers; Fertilizer application should be combined with other high-yield and high-quality cultivation techniques. In particular, attention should be paid to increasing planting density and promoting the application of water-saving and drought-resistant technologies.
2. Fertilization advice
(1) Recommended 20-12-8 (N-P2O5-K2O, containing boron) or similar formula; (2) Yield level of 200 kg / mu or more: recommended dosage of formula fertilizer 50 kg / mu, wintering seedlings to apply urea 3 ~ 5 kg / mu, manure application of urea 5 ~ 8 kg / mu; (3) production level 150 ~ 200 kg / acre: recommended dosage of formula fertilizer 40 ~ 50 kg / acre, wintering seedlings fertilizer urea 3 ~ 5 Kilograms/mu, manure application of urea 3 to 5 kg/mu; (4) production level of 100-150 kg/mu: recommended dosage of formula fertilizer 35-40 kg/mu, manure application of urea 5-8 kg/mu (5) The production level is below 100 kg/mu: the recommended dosage of formula fertilizer is 25-30 kg/mu, and the fertilizer is applied to urea 5-8 kg/mu.
Fertilization principle
(1) According to the results of soil testing and formula fertilization, determine the reasonable amount of nitrogen, phosphorus and potassium fertilizer, green and efficient fertilization; (2) the application of nitrogen fertilizer in different applications, appropriately reduce the application rate of nitrogen fertilizer, high-yield fields to grasp the application of manure, simplify the middle and low-yield fields (3) According to the soil effective boron content, appropriate amount of boron fertilizer; (4) increase the application of organic fertilizer, promote the cooperation of organic and inorganic fertilizers, increase the strength of straw returning; (5) acidification of severe soil application of alkaline fertilizer ;
(6) Fertilizer application should be combined with other high-yield and high-quality cultivation techniques, especially attention should be paid to increasing planting density, ditching and reducing stains, and controlling weeds; (7) Pay attention to the selection of resistant varieties in the production area of ​​clubroot disease.
2. Fertilization advice
(1) Recommend 20-11-10 (N-P2O5-K2O, boron) or similar formula special fertilizer; conditional production area can recommend 25-7-8 (N-P2O5-K2O, boron) or similar formula The rapeseed special slow (control) release formula fertilizer; (2) the production level of 200 kg / acre: when the former crop is rice, the recommended dosage of formula fertilizer is 50 kg / mu, and the wintering seedling fertilizer is 5-8 kg/mu. Fertilizer topdressing urea 5 ~ 8 kg / acre; or one-time application of rapeseed special slow (control) release formula fertilizer 60 kg / mu. When the former crop is tobacco or soybean, the fertilization amount can be reduced by about 10% as appropriate; (3) the yield level is 150-200 kg/mu: when the front crop is rice, the recommended dosage of formula fertilizer is 40-50 kg/mu, wintering seedling Topdressing urea 5-8 kg/mu, manure composting urea 3~5 kg/mu; or one-time application of rapeseed special slow (control) release formula fertilizer 50 kg/mu. When the former crop is tobacco or soybean, the fertilization amount can be reduced by about 10% as appropriate; (4) The yield level is 100-150 kg/mu: when the former crop is rice, the recommended dosage of formula fertilizer is 35-40 kg/mu, and the wintering seedling is used. Topdressing urea 5 ~ 8 kg / acre; or one-time application of rapeseed special slow (control) release formula fertilizer 40 kg / mu. When the former crop is tobacco or soybean, the fertilization amount can be reduced by about 10% as appropriate; (5) the yield level is below 100 kg/mu: the recommended dosage of formula fertilizer is 30-40 kg/mu. Or a single-use rapeseed special slow (control) release formula fertilizer 30 kg / mu.
(2) Winter rapeseed area in the middle and lower reaches of the Yangtze River. Including Anhui, Jiangsu, Zhejiang and most of Hubei.
Fertilization principle
(1) According to the soil fertilization results, determine the reasonable amount of nitrogen, phosphorus and potassium fertilizer, appropriately reduce the amount of nitrogen and phosphorus fertilizer, and determine the reasonable ratio of nitrogen, phosphorus and potassium fertilizer; (2) transplanting rapeseed based fertilizer deep application, live rapeseed seed ectopic simulcast, To achieve concentrated application of fertilizers and improve nutrient use efficiency; (3) to supplement boron fertilizer according to the effective boron content of soil; (4) increase the intensity of straw returning to the field, and promote the cooperation of organic and inorganic fertilizers; (5) acidification and serious soil application (6) Fertilizer application should be combined with other high-yield and high-quality cultivation techniques, especially the need to pay attention to increase planting density, control weeds, and direct broadcast of rapeseed for early sowing; (7) pay attention to prevention and control of sclerotia.
2. Fertilization advice
(1) Recommend 18-10-12 (N-P2O5-K2O, boron) or similar formula fertilizer; conditional production area can recommend 25-7-8 (N-P2O5-K2O, boron) or similar formula The rapeseed special slow (control) release formula fertilizer; (2) the production level of 200 kg / mu or more: the recommended dosage of formula fertilizer 50 kg / mu, the wintering seedling fertilizer surging urea 5 ~ 8 kg / mu, manure fertilizer surging urea 5 ~ 8 kg / mu. Or a single-use rapeseed special slow (control) release formula fertilizer 60 kg / mu; (3) production level 150 ~ 200 kg / acre: formula fertilizer recommended dosage 40 ~ 50 kg / acre, wintering seedlings fertilizer urea 5 ~ 8 Kilograms/mu, manure application of urea 3 to 5 kg / mu. Or a one-time application of rapeseed special slow (control) release formula fertilizer 50 kg / mu; (4) production level of 100 ~ 150 kg / acre: recommended dosage of formula fertilizer 35 ~ 40 kg / acre, manure fertilizer with urea 5 ~ 8 kg /mu. Or a one-time application of rapeseed special slow (control) release formula fertilizer 40 kg / mu; (5) production level of 100 kg / mu or less: recommended dosage of formula fertilizer 25 ~ 30 kg / acre, manure fertilizer with urea 3 ~ 5 kg / mu. Or a single-use rapeseed special slow (control) release formula fertilizer 30 kg / mu.
(3) Three-cooked winter rapeseed area. Including Hunan, Jiangxi and Guangxi.
Fertilization principle
(1) According to the results of fertilization of soil testing formula, determine the reasonable dosage and ratio of nitrogen, phosphorus and potassium fertilizer, and pay attention to the application of manure fertilizer.
(2) According to the soil effective boron content, appropriate amount of boron fertilizer; promote the application of magnesium-containing fertilizer; (3) in the sulfur-deficient area can be applied sulfur 2 ~ 3 kg / acre, if other sulfur-containing fertilizers are used, sulfur can be reduced (4) increase the strength of straw returning to the field, and promote the combination of organic and inorganic fertilizers; (5) increase the application of alkaline fertilizers in acidified soil; (6) increase the density of rapeseed planting, pay attention to open the trenches, and prevent the waterlogging of the fields. Control weeds; (7) pay attention to prevention and control of sclerotinia.
2. Fertilization advice
(1) Recommend 18-8-14 (N-P2O5-K2O, boron) or similar formula fertilizer; conditional production area can recommend 25-7-8 (N-P2O5-K2O, boron) or similar formula The rapeseed special slow (control) release formula fertilizer; (2) the production level of 180 kg / mu or more: the recommended dosage of formula fertilizer 50 kg / mu, the manure fertilizer 5 to 8 kg / mu. Or a one-time application of rapeseed special slow (control) release formula fertilizer 50 kg / mu; (3) production level 150 ~ 180 kg / acre: formula fertilizer recommended dosage of 40 ~ 45 kg / acre, manure fertilizer with urea 5 ~ 8 kg /mu. Or a single-use rapeseed special slow (control) release formula fertilizer 40 ~ 50 kg / ag; (4) production level of 100 ~ 150 kg / acre: recommended dosage of formula fertilizer 35 ~ 40 kg / acre, manure fertilizer with urea 3 ~ 5 kg / mu. Or a one-time application of rapeseed special slow (control) release formula fertilizer 40 kg / mu; (5) production level of 100 kg / mu or less: recommended dosage of formula fertilizer 25 ~ 30 kg / acre, manure fertilizer with urea 3 ~ 5 kg / mu. Or a single-use rapeseed special slow (control) release formula fertilizer 30 kg / mu.
(4) Huanghuai winter rapeseed area. It mainly includes Shaanxi and Henan winter rapeseed areas.
Fertilization principle
(1) According to the results of soil testing and formula fertilization, determine the reasonable amount of nitrogen, phosphorus and potassium fertilizer, appropriately reduce the amount of nitrogen and potassium fertilizer, and determine the reasonable ratio of nitrogen, phosphorus and potassium fertilizer; (2) transplanting rapeseed based fertilizer deep application, live rapeseed seed ectopic simulcast, To achieve centralized application of fertilizers and improve nutrient utilization efficiency; (3) to supplement boron fertilizer according to the effective boron content of soil; (4) to increase the strength of straw returning, to promote straw cover insulation and to promote the cooperation of organic and inorganic fertilizers; Fertilizer application should be combined with other high-yield and high-quality cultivation techniques. In particular, attention should be paid to increasing planting density and promoting the application of water-saving and drought-resistant technologies.
2. Fertilization advice
(1) Recommended 20-12-8 (N-P2O5-K2O, containing boron) or similar formula; (2) Yield level of 200 kg / mu or more: recommended dosage of formula fertilizer 50 kg / mu, wintering seedlings to apply urea 3 ~ 5 kg / mu, manure application of urea 5 ~ 8 kg / mu; (3) production level 150 ~ 200 kg / acre: recommended dosage of formula fertilizer 40 ~ 50 kg / acre, wintering seedlings fertilizer urea 3 ~ 5 Kilograms/mu, manure application of urea 3 to 5 kg/mu; (4) production level of 100-150 kg/mu: recommended dosage of formula fertilizer 35-40 kg/mu, manure application of urea 5-8 kg/mu (5) The production level is below 100 kg/mu: the recommended dosage of formula fertilizer is 25-30 kg/mu, and the fertilizer is applied to urea 5-8 kg/mu.
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