Reasonable fertilization to avoid pollution
Adjusting the structural imbalance of chemical fertilizer structure fertilizer is one of the main reasons affecting the low utilization rate of fertilizer efficiency in the current season.
Popularizing balanced fertilization techniques and reducing the use of chemical fertilizers to balance fertilization needs formulating according to the needs of crops on the basis of soil testing, and then applying fertilization according to the characteristics of crop absorption, not only relying on the configuration of chemical fertilizers can be effective. Therefore, it needs good technical services from the society and it is combined with the user's good scientific and technological qualities.
Organic and inorganic fertilizers combined with application of organic fertilizer can not only improve the soil structure, improve the resistance of the crop, but also can supplement the soil potassium, phosphorus and nitrogen, such as amino acids that can be directly used by plants.
Scientific fertilization, reducing the loss of chemical fertilization Fertilization technology is not appropriate, manifested in the light base fertilizer, pay attention to top dressing, applicator and fertilizer is not appropriate, is the formation of chemical fertilizer loss, fertilizer efficiency decreased an important reason. The use of deep application techniques is the key to avoiding fertilizer losses.
Reasonable irrigation, reducing fertilizer loss The advantages and disadvantages of irrigation technology and fertilizer loss are very important. China's irrigation technology is dominated by traditional ground flood irrigation, and it is transitioning to water-saving irrigation technologies such as pipe irrigation and drip irrigation, in which the utilization of water is related to the loss rate of chemical fertilizers, and the amount of soil fertilizer loss caused by diffuse irrigation on the ground is amazing. Therefore, we must promote water and fertilizer integration technology.
It is necessary to properly adjust the structure of crop farming, make full use of the nitrogen fixation performance of legumes, and reduce the use of nitrogen fertilizers.
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