Matters needing attention in the application of formula fertilizer

The main results are as follows: (1) choose suitable fertilizer varieties. The suitable formula fertilizer varieties should be selected according to the agrochemical characteristics of soil and the fertilizer demand characteristics of crops. if the application is not compatible with the fertilizer requirements of soil characteristics and crop characteristics, it will not only cause a waste of nutrients, but also lead to a reduction in yield.

(2) the formula fertilizer should be used in combination with the elemental fertilizer. The composition of formula fertilizer is fixed, so it is difficult to meet the different requirements of nutrient elements in different soils, different crops and different growth stages. According to the nutrient content of formula fertilizer, simple chemical fertilizer should be used to ensure the coordinated supply of nutrients.

(3) choose the appropriate application method. In the application of formula fertilizer, corresponding technical measures should be taken to exert the fertilizer effect, and the effect of formula fertilizer as base fertilizer is better than that of other simple fertilizers.

(4) it is necessary to grasp the appropriate application period and quantity. Formula fertilizer is a multi-element fertilizer, it is best to apply base fertilizer, try not to do topdressing. The appropriate amount of application should be determined according to soil fertility, variety and yield.