Principles of fertilizing corn: It is recommended to conduct soil testing and formulating fertilization according to soil fertility, adhere to organic fertilizer as the main chemical fertilizer, organic fertilizer as base fertilizer, and chemical fertilizer as top dressing, which will help provide soil fertility and improve soil structure. Chemical fertilizers generally follow pre-control, mid-supplementation, and post-supply basal fertilizer application. The big bell-mouth stage and silking stage are re-applied. Phosphate fertilizer and potash fertilizer are generally used as base fertilizers, and can also be used as top-dressing fertilizers. Trace elements zinc sulfate should promote the application of 0.5kg per mu. The use of farmyard manure as a base fertilizer can improve soil texture, prevent the occurrence of corn white seedlings, and increase corn yield.
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