1. Insufficient supplementation of roots for fertilization When the roots of a crop are inconvenient for fertilization, such as in the late growth stage, the root activity declines and the uptake capacity decreases; or when the soil environment is unfavorable for crop growth, such as excessive moisture, drought, and soil acidification. Alkaline, causing crop root absorption is blocked, and the crop needs to quickly restore growth. If the root method can not meet the needs of the crop in time, only the foliar spray can quickly supplement the nutrition and meet the needs of the crop growth and development. 2. Quickly replenish nutrients During the course of crop growth, the crop has already exhibited certain nutrient deficiency deficiencies. Because the use of soil fertilization requires a certain amount of time for nutrients to be absorbed by crops, the symptoms of nutrient deficiency in crops cannot be alleviated in time. When foliar fertilization is used at this time, the nutrients can quickly enter the plant through the leaves to solve the problem of nutrient deficiency. 3. Give full play to fertilizer effects Some fertilizers such as phosphorus, iron, manganese, copper, zinc, etc., if used as a root, easily fixed by the soil, affecting the application effect, and the use of foliar spray will not be limited by soil conditions. For example, some fruit trees and other deep-rooted crops have relatively small amounts of certain nutrient elements. If traditional root fertilizers are difficult to apply to root absorption sites, they cannot fully exert their fertility. Foliar spraying can achieve better results. effect. 4. Economical profit Various trace elements are indispensable nutrients in the process of crop growth and development, but the amount of application is very small, such as molybdenum fertilizer, the application amount per mu is only a few tens of grams, if the method of root application is not easy to apply uniform. Only adopting foliar spraying can achieve economic efficiency. According to research estimates, boron fertilizer is applied to foliar surfaces of general crops, and the boron utilization rate is 8.18 times that of basic plants. From an economic point of view, foliar spraying is more cost-effective than rooting. 5. Reducing soil pollution The large amount of nitrogen fertilizer applied to the soil will easily lead to the accumulation of nitrate in groundwater and vegetables, which will cause harm to human health. About 75% of the nitrates absorbed by humans come from vegetables. If foliar fertilization is adopted, reducing the amount of soil fertilization can reduce the nitrate content in the plant and the residual mineral nitrogen in the soil. In salinized soils, soil fertilization may increase the concentration of soil solution and increase soil salinization. The adoption of foliar fertilizer measures not only saves the amount of fertilizer but also reduces the pollution of soil and water sources. It is an effective fertilization technique that can kill both birds and birds. "We're commitment to offer you the competitive price ,remarkable products excellent, also as fast delivery for Fingerprint Safe Tiger New Series Safe with Upright Safe Manufactory With a fast development and our customers come from Europe United States Africa and all over the world. Welcome to visit our factory and welcome your order for further inquires please do not hesitate to contact us! Upright Safe,Hotel Upright Safe Box,Hotel Digital Safe Box,Electric Hotel Digital Safe Box Hebei Hupai Aodi Cabinet Industry Co.,Ltd. , https://www.aodicabinet.com