First, in line with practical, practical and practical principles to reform the fertilization method to promote the use of enzyme composting composting and decomposing organic fertilizer, the use of stratified or full-layer deep cast. According to the planned total amount of fertilizing and fertilization in the current year, it can be applied once in deep turning, adopting formula fertilization technology, mastering the three elements of nitrogen, phosphorus and potassium and the formula of trace elements, and determining whether or not to use water according to the degree of dryness and humidity of soil after application. In water, it is generally necessary to keep the soil moist and to fully decompose the fertilizer. Do not sow or plant immediately after dry application.
Second, the scientific use of chemical fertilizer rapeseed fields per acre of fertilizer for 25 kg of ammonium bicarbonate, ammonium sulfate 15 kg, 10 kg of urea, the application must consider the weather, soil, seedlings and physical and chemical properties of fertilizer, according to local conditions to be mastered to make It can not only give full play to fertilizer efficiency, but also save costs and effectively prevent the occurrence of fertilizer damage. Conditions to minimize the amount of chemical fertilizers, promote the application of controlled release fertilizers, wrapped fertilizers, silicate bacteria, biological potash and so on.
Third, promote the application of biological fertilizer and chemical fertilizer mixed long-term application of chemical fertilizer rapeseed field, the reduction of soil microorganisms, can also cause organic matter decomposition blocked, not only easy to lose nutrients, but also reduce its utilization. Therefore, the combination of biological fertilizers and chemical fertilizers can improve the long-term application of fertilizer soil, not only to make up for the shortcomings of lack of nitrogen in biological fertilizers, but also to make the fertilizer not lost. Rape field can apply 50-80 kg of bio-fertilizer per mu.
Fourth, the application of foliar fertilizer Huiman Fung fertilizer, the amount of 250-500 ml per acre, diluted to 400-600 times liquid better.
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