In the growth and development of plants, in addition to the leaves need to produce organic matter through photosynthesis, water and minerals in the soil must also be absorbed through the roots. Plants need a variety of mineral elements, including nitrogen, phosphorus, potassium, iron, copper, boron, zinc and many other elements.
In order to ensure the normal growth of crops and improve the yield and quality of crops, it is necessary to rationally apply fertilizer. According to the physiological effects of mineral elements on crops, combined with the demand of fertilizers and the characteristics of different crops, timely and appropriate fertilization.
1. Rational fertilization according to the fertilizer characteristics required by various crops;
2. Fertilize according to local soil fertility;
3. Apply fertilizer according to the nutritional characteristics of the crops in each growing season.