How to prevent rapeseed damage

Reforming the fertilization method to promote the application of compost and composted organic fertilizers, using layered application or full-layer deep application

The reforming fertilization method advocates the application of enzyme compost and composted organic fertilizer, using layered application or full-layer deep application. According to the plan of the year, the total amount of mouthwash and fertilization can be applied once in the deep turn; using formula fertilization technology, master the formula of nitrogen, phosphorus and potassium three elements and trace elements, and determine whether to cast according to the dryness and wetness of the soil after application. water. It is generally necessary to keep the soil moist and to make the fertilizer fully decomposed. Do not sow or plant immediately after dry application.
Scientific application of chemical fertilizers in rapeseed fields is 25 kg of ammonium bicarbonate, 15 kg of ammonium sulphate and 10 kg of urea. The application must take into account the weather, soil, seedlings and chemical and chemical properties of the fertilizers, so that they can be mastered according to local conditions. Give full play to fertilizer efficiency, save costs, and effectively prevent fat damage. It is necessary to reduce the amount of chemical fertilizers as much as possible, and to promote the application of controlled slow release fertilizers, wrapped fertilizers, silicate bacteria and biological potassium fertilizers.
Advocating the application of biological fertilizers and chemical fertilizers to produce rapeseed fields with long-term application of chemical fertilizers, soil microbes are reduced, and organic matter decomposition is also hindered, not only nutrients are easily lost, but also its utilization rate is reduced. Therefore, the combination of biological fertilizers and chemical fertilizers can improve the long-term application of chemical fertilizer soils, not only to make up for the shortcomings of insufficient nitrogen content in biological fertilizers, but also to prevent the loss of chemical fertilizers. The rapeseed field can apply 50-80 kilograms of biological fertilizer per acre.
When applying foliar fertilizer to apply Huimanfeng foliar fertilizer, the dosage per acre is 250-500 ml, and the dilution is 400-600 times.
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