According to the output target, a good balance of fertilization within a certain range of fertilization, the crop yield and the amount of fertilizer was a positive relationship. Too much increase in the total amount of fertilization or the number of single fertilization will result in reduced production due to the loss of ecological balance in the nutritional environment. Therefore, it cannot be said that the more the fertilizer is applied, the higher the yield will be.
Adhere to deep fertilization, so that the use of fertilizer in the water to adhere to the deep application of fertilizer, in order to cover the protection of chemical fertilizers with the soil, reduce volatilization and loss. When there is a shortage of lyrical moisture, it is necessary to apply adequate water to adjust the amount of water, so as to adjust fertilizer by water.
To improve fertilizer preparations and regulate fertilizer supply peaks, one type of fertilizer is made into a broad-spectrum type of compound fertilizer; second, special fertilizer is made according to the characteristics of the crop's fertilizer requirements; and third, modified fertilizers are used to make immediate-release fertilizers. Slow-release fertilizers; Fourth, inorganic fertilizers and bio-organic fertilizers are used to make up for the advantages of granular fertilizers, and early or delayed application time, so that the peak of fertilizer requirements of the crop and the peak supply of fertilizers to each other, give full play fertilizer effect.
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