A few days ago, it will enter the stage of preparation for winter wheat. In order to do a good job of wheat production and achieve a good summer harvest next year, our station put forward proposals for wheat fertilization based on the recent winter wheat formula fertilization experiments and demonstration results for reference:
First, increase the application of organic fertilizer, vigorously promote the return of straw directly to the organic fertilizer is a complete fertilizer, rich in organic matter, nitrogen, phosphorus, potassium and trace elements, but also an important nutrient source of microorganisms. Applying sufficient organic fertilizer can not only meet the needs of wheat growth for various nutrient elements, but also promote the activities of microorganisms, and is conducive to the transformation of soil nutrients in various forms and improve soil fertility. There are two main ways to increase organic fertilizers. One is to use bio-pillars to stack straw organic fertilizer or to administer circumfertility, livestock manure, and other organic fertilizers. Generally, more than 5 m of Mushi are used; the second is the return of corn stalks and the amount of returned cropland is one. Mu is also suitable for an acre.
Second, the rational application of nitrogen and phosphorus fertilizer, due to the application of potassium fertilizer and zinc fertilizer
1, high fertility wheat. Soil organic matter content is 12.5g/kg or more, available phosphorus content is 15mg/kg or more, output target is more than 450kg per mu, mainly distributed in Fucheng, Zhaoxian, Zhengding, Fucheng, Wuji counties (cities), per acre Application of pure nitrogen 7-9 kg (equivalent to about 17 kg of urea or about 47 kg of ammonium bicarbonate), phosphorus pentoxide 11-13 kg (equivalent to about 85 kg of superphosphate), potassium oxide 7-9 kg (equivalent to chlorine About 16 kilograms of potassium), zinc sulfate 1-2 kilograms. Can also be used for wheat special fertilizer (NPK total ≥ 25%) 85 kg. Topdressing is applied twice. After the wheat has risen, it is topped with 4.5 kg of pure nitrogen (about 10 kg of urea or about 27 kg of ammonium bicarbonate at the jointing stage, and 4.5 kg of pure nitrogen (about 10 kg of urea) at the booting stage.
2, fertility in wheat. The soil organic matter content is 10-12.5 g/kg, and the available phosphorus content is 10-15 mg/kg. The output target is 350-450 kg per mu, which is mainly distributed in Xinji, Shenze, Jinzhou, Gaochun, Yuanshi and Xingtang counties. (City) Apply 5-7 kg of pure nitrogen (about 13 kg of urea or about 35 kg of ammonium bicarbonate) per gram of base, 8-10 kg of phosphorus pentoxide (about 64 kg of equivalent superphosphate), potassium oxide 5-7 kg (equivalent to approximately 12 kg of potassium chloride) and 1-2 kg of zinc sulfate. Can also be used for wheat special fertilizer (nitrogen phosphorus potassium zinc total content ≥ 25%) 75 kg. Topdressing is applied twice. After the wheat has risen, it is applied with 4.5 kg of pure nitrogen (about 10 kg of urea or about 27 kg of ammonium bicarbonate) at the jointing stage and 2.5 kg of pure nitrogen (about 6 kg of urea) at the booting stage.
3, low fertility wheat fields. The soil organic matter content is below 10 g/kg, and the available phosphorus content is below 10 mg/kg. The output target is 300-350 kg per mu, mainly distributed in Xinle, Jingui, Yuanshi, Zanhuang, Hangtang and Pingshan counties (cities). The sandy land and hilly dry land, the end of each acre of pure nitrogen 5-7 kg (equivalent to about 13 kg of urea or about 35 kg of ammonium bicarbonate), phosphorus pentoxide 7-9 kg (equivalent to about 57 kg of superphosphate) , Potassium oxide 5-7 kg (equivalent to about 12 kg of potassium chloride), zinc sulfate 1-2 kg. Can also be used for wheat special fertilizer (nitrogen phosphorus potassium zinc total content ≥ 25%) 75 kg. The topdressing with irrigated conditions was applied in two stages. After the wheat got up and joined at the jointing stage, 4.5 kg of pure nitrogen was applied (approximately 10 kg of urea or about 27 kg of ammonium bicarbonate), and 2.5 kg of pure nitrogen was applied at the booting stage (approximately 6 urea equivalents). About 15 kg of kilograms or ammonium bicarbonate). Hilly dryland wheat should be applied at the jointing stage once, and the amount of pure nitrogen 6 (equivalent to about 13 kg of urea or 35 kg of ammonium bicarbonate) is appropriate.
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