How to use fertilizer for this winter wheat
2021-03-02 00:19:45
In order to improve the utilization efficiency of fertilizer nutrient resources, promote the sustainable development of green agriculture, and strengthen the scientific fertilization guidance for the main crops in autumn and winter, the Ministry of Agriculture and Rural Crops Management, the National Agricultural Technology Extension Service Center, and the Agricultural Fertilization Guidance Expert Group Formulate the Guiding Opinions on Scientific Fertilization of Main Crops in Autumn and Winter of 2018. This article is here to sort out the fertilization recommendations for winter wheat.
Fertilization principle is applicable to the excessive application of nitrogen fertilizer in winter wheat in the irrigation area of ​​North China Plain and Guanzhong Plain. The ratio of nitrogen, phosphorus and potassium nutrients is imbalanced, the amount of base fertilizer is high, and the area of ​​one-time fertilization is increasing. The supply of nitrogen fertilizer is insufficient in the later stage. Trace elements such as sulfur, zinc and boron Lack of phenomenon occurs, the soil is shallow, the ability to keep water and fertilizer is poor, and the following fertilization principles are proposed: First, according to the results of soil testing and fertilization, the amount of nitrogen and phosphorus fertilizer is appropriately reduced. Second, the nitrogen fertilizer should be applied in different stages. According to the soil fertility and the characteristics of wheat varieties, the application ratio in the middle and late growth stages should be appropriately increased to maintain the balance of nutrient supply during the whole growth period. Third, according to soil fertility conditions, the application of phosphorus and potassium fertilizers. Fourth, the straw is smashed into the field, the organic fertilizer is added, and the organic and inorganic cooperation is promoted to improve the soil water retention and fertilizer retention capacity. 5. Pay attention to the application of trace elements in sulfur, zinc, boron and manganese. 6. For soils with acidification, salinization and compaction, it is necessary to improve the soil through scientific fertilization and tillage measures.
Fertilization recommended formula 1, base chasing combined with fertilization program recommended formula: 15-20-12 (N-P2O5-K2O) or similar formula.
(1) The production level is below 400 kg/mu, and the recommended dosage of formula fertilizer is 18~24 kg/mu. The period from the start-up period to the jointing stage is combined with irrigation and 10~13 kg/mu of urea.
(2) The production level is 400-500 kg/mu, and the recommended dosage of formula fertilizer is 24-30 kg/mu. The period from the start-up period to the jointing stage is combined with irrigation and 13~16 kg/mu.
(3) The production level is 500-600 kg/mu, and the recommended dosage of formula fertilizer is 30-36 kg/mu. From the start-up period to the jointing stage, combined with irrigation, the urea is applied 16-20 kg/mu.
(4) The production level is 600 kg/mu or more, and the recommended dosage of formula fertilizer is 36-42 kg/mu. The period from the start-up period to the jointing stage is combined with irrigation and 20-24 kg/mu.
Second, the one-time fertilization program recommended formula: 25-12-8 (N-P2O5-K2O) or similar formula.
(1) The production level is below 400 kg/mu, and the recommended dosage of formula fertilizer is 30-38 kg/mu, which is applied as a base fertilizer at one time.
(2) The production level is 400-500 kg/mu, and the recommended dosage of formula fertilizer is 38-48 kg/mu, which is applied as a base fertilizer at one time.
(3) The production level is 500-600 kg/mu, and the recommended dosage of formula fertilizer is 48-58 kg/mu, which is used as a base fertilizer for one-time application.
(4) The production level is above 600 kg/mu, and the recommended dosage of formula fertilizer is 58-70 kg/mu, which is applied as a base fertilizer at one time.
In the zinc-deficient or manganese-deficient areas, zinc sulphate or manganese sulphate may be applied in an amount of 1 to 2 kg/mu, and in the boron-deficient area, borax may be applied at 0.5 to 1 kg/mu. It is recommended to combine the "one spray three prevention" to spray the trace element water soluble fertilizer in the wheat filling period, or to spray the surface with 150-200 grams of potassium dihydrogen phosphate and 50 kg of urea to 50 kg of water per acre. If the base fertilizer is applied with organic fertilizer, the amount of chemical fertilizer can be reduced as appropriate.
Fertilization principle is applicable to the excessive application of nitrogen fertilizer in winter wheat in the irrigation area of ​​North China Plain and Guanzhong Plain. The ratio of nitrogen, phosphorus and potassium nutrients is imbalanced, the amount of base fertilizer is high, and the area of ​​one-time fertilization is increasing. The supply of nitrogen fertilizer is insufficient in the later stage. Trace elements such as sulfur, zinc and boron Lack of phenomenon occurs, the soil is shallow, the ability to keep water and fertilizer is poor, and the following fertilization principles are proposed: First, according to the results of soil testing and fertilization, the amount of nitrogen and phosphorus fertilizer is appropriately reduced. Second, the nitrogen fertilizer should be applied in different stages. According to the soil fertility and the characteristics of wheat varieties, the application ratio in the middle and late growth stages should be appropriately increased to maintain the balance of nutrient supply during the whole growth period. Third, according to soil fertility conditions, the application of phosphorus and potassium fertilizers. Fourth, the straw is smashed into the field, the organic fertilizer is added, and the organic and inorganic cooperation is promoted to improve the soil water retention and fertilizer retention capacity. 5. Pay attention to the application of trace elements in sulfur, zinc, boron and manganese. 6. For soils with acidification, salinization and compaction, it is necessary to improve the soil through scientific fertilization and tillage measures.
Fertilization recommended formula 1, base chasing combined with fertilization program recommended formula: 15-20-12 (N-P2O5-K2O) or similar formula.
(1) The production level is below 400 kg/mu, and the recommended dosage of formula fertilizer is 18~24 kg/mu. The period from the start-up period to the jointing stage is combined with irrigation and 10~13 kg/mu of urea.
(2) The production level is 400-500 kg/mu, and the recommended dosage of formula fertilizer is 24-30 kg/mu. The period from the start-up period to the jointing stage is combined with irrigation and 13~16 kg/mu.
(3) The production level is 500-600 kg/mu, and the recommended dosage of formula fertilizer is 30-36 kg/mu. From the start-up period to the jointing stage, combined with irrigation, the urea is applied 16-20 kg/mu.
(4) The production level is 600 kg/mu or more, and the recommended dosage of formula fertilizer is 36-42 kg/mu. The period from the start-up period to the jointing stage is combined with irrigation and 20-24 kg/mu.
Second, the one-time fertilization program recommended formula: 25-12-8 (N-P2O5-K2O) or similar formula.
(1) The production level is below 400 kg/mu, and the recommended dosage of formula fertilizer is 30-38 kg/mu, which is applied as a base fertilizer at one time.
(2) The production level is 400-500 kg/mu, and the recommended dosage of formula fertilizer is 38-48 kg/mu, which is applied as a base fertilizer at one time.
(3) The production level is 500-600 kg/mu, and the recommended dosage of formula fertilizer is 48-58 kg/mu, which is used as a base fertilizer for one-time application.
(4) The production level is above 600 kg/mu, and the recommended dosage of formula fertilizer is 58-70 kg/mu, which is applied as a base fertilizer at one time.
In the zinc-deficient or manganese-deficient areas, zinc sulphate or manganese sulphate may be applied in an amount of 1 to 2 kg/mu, and in the boron-deficient area, borax may be applied at 0.5 to 1 kg/mu. It is recommended to combine the "one spray three prevention" to spray the trace element water soluble fertilizer in the wheat filling period, or to spray the surface with 150-200 grams of potassium dihydrogen phosphate and 50 kg of urea to 50 kg of water per acre. If the base fertilizer is applied with organic fertilizer, the amount of chemical fertilizer can be reduced as appropriate.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Melamine Edge Banding,Melamine Edge Band,Paper Edge Banding
Sinowolf Plastic Dekor Co., Ltd , https://www.sinowolfdekor.com