At present, the amount of chemical fertilizer application is getting more and more, but the output has not seen much growth. The main reason is that the fertilization method is not proper. Therefore, the following measures should be taken.
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. It has been determined that for every 100 kg of rice produced, 1.85 kg of nitrogen, 0.85 kg of phosphorus pentoxide, and 2.1 kg of potassium oxide should be absorbed from the soil. For every 100 kilograms of lint produced, 12 kilograms of nitrogen, 4 kilograms of phosphorus pentoxide, and 12 kilograms of potassium oxide are needed. Of course, factors such as climate, soil, and fertility should also be considered when determining the amount of fertilizer to be applied.
Adhere to deep fertilization to adjust fertilizer with water, production should adhere to the deep application of fertilizers in order to cover the protection of chemical fertilizers with the soil to 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.
Mixing organic fertilizers to enhance adsorption capacity When chemical fertilizers and organic fertilizers are mixed, the available nutrients can be adsorbed or combined by organic fertilizers and then gradually released, which not only prolongs the time for fertilizer supply, but also reduces the consumption of nutrients.
To improve fertilizer supply and fertilizer regulation, one peak is to make a single type of fertilizer into a broad-spectrum type of compound fertilizer; second, to make a special-type fertilizer based on the characteristics of crops to be fertilizer; third, to use modified methods to make immediate-release fertilizers Release fertilizer; Fourth, inorganic fertilizer and bio-organic fertilizer to make up for the advantage of the granular fertilizer, early or delayed application time, so that the peak of the crop need fertilizer and fertilizer supply peak convergence, fully play fertilizer effect.
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