Rape cultivation: how to prevent rape from fertilizer damage?

How to prevent the harm of fat in rape? Please introduce the methods of rape to prevent fertilizer damage can refer to the following four methods (for reference): first, adopt layered application or full-layer deep application: according to the planned stubble and the total amount of fertilizer in the current year, apply at one time during deep ploughing, and adopt formula fertilization technology. master the formula of nitrogen, phosphorus, potassium and trace elements, and determine whether to water according to the degree of soil dryness and wetness after application, and generally keep the soil moist. Make the fertilizer fully mature. Do not sow or plant immediately after dry application. 2. Scientific application of chemical fertilizer: the annual amount of fertilizer used in rape fields is 25 kg of ammonium bicarbonate, 15 kg of ammonium sulfate and 10 kg of urea per mu. Weather, soil, seedling conditions and physical and chemical properties of chemical fertilizer must be taken into account when applying, so that it can not only give full play to fertilizer efficiency, but also save costs, and effectively prevent fertilizer damage. Reduce the amount of chemical fertilizer as much as possible, and advocate the application of controlled slow-release fertilizer, wrapped fertilizer, silicate bacteria biological potash fertilizer and so on. Third, promote the mixed application of biological fertilizer and chemical fertilizer: in the rape field where chemical fertilizer is applied for a long time, the number of soil microorganisms is reduced, which will also hinder the decomposition of organic matter, which is not only easy to lose nutrients, but also reduce its utilization rate. Therefore, the mixture of biological fertilizer and chemical fertilizer can improve the long-applied chemical fertilizer soil, which can not only make up for the deficiency of nitrogen content in biological fertilizer, but also prevent the loss of chemical fertilizer. The rape field can be burrowed with biological fertilizer of 50kg / mu. Fourth, the application of foliar fertilizer: when Huimanfeng foliar fertilizer is applied, the effect is better when the dosage is 250ml / mu and diluted to 400ml / mu. Click to get more rape planting techniques click to get more vegetable planting techniques