The advantages of foliar micro fertilizer application

After confirming the deficiency of certain trace elements in crops, fertilization should be used to supplement them. The application method of micro fertilizers is different from that of macronutrients. Crops have a low demand for micro fertilizers and can adapt to a narrow concentration range. Lack is not enough, once exceeded, it will be poisoned. As is well known, the supplementation of a large amount of elemental fertilizers is mainly through the application of nitrogen, phosphorus, and potassium fertilizers (generally calculated in kilograms) in the soil to supply root nutrients; The deficiency of trace elements in crops can generally be supplemented by foliar fertilization outside the roots, except in cases where the deficiency is particularly severe. The advantage of foliar fertilization is that it directly supplies nutrients to the aboveground parts, has a fast utilization rate, and avoids the effective nutrients of the fertilizer from being fixed and degraded in the soil. The nutrient utilization efficiency of foliar fertilization is higher than that of soil fertilization, which can directly and effectively solve the problem of trace element deficiency. Of course, its disadvantage is that the fertilizer effect is short-lived and limited, and it is an auxiliary fertilization method. Sometimes, for soils severely lacking certain trace elements, it is necessary to rely on soil fertilization to achieve significant results.