For the North China Plain and the Guanzhong Plain irrigated area, the excessive application of nitrogen fertilizer in winter wheat is common, the ratio of nitrogen, phosphorus and potassium nutrients is not balanced, 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, and the trace element deficiency such as sulfur, zinc and boron There are occasions, problems such as shallow soil layer, poor water retention and fertilizer retention, and the following fertilization principles are proposed: First, according to the results of soil testing and formula 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. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Chili Sweet Sauce,Traditional Preparation Of Chili Oil,Handmade Sweet And Spicy Chili Oil,Herbal Packet Chili Oil Guizhou Guisanhong Food Co., Ltd , https://www.guisanhong.com
How to use fertilizer for this winter wheat
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. Among them, the fertilization proposals for winter wheat are as follows: