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作物吸收养分可通过二条途径:—是根系吸收,二是叶面吸收。叶面施肥又称根外施(追)肥,根外施肥即通过叶面喷洒来补充植物所需的营养元素,起到调节植物生长、补充所缺元素、防早衰和增加产量的作用。采取根外追肥可直接迅速地供给养分,避免养分被土壤吸附固定,提高了肥料利用率;且用量少,适合于微肥的施用,增产
Crops absorb nutrients through two channels: - is the root absorption, the second is the foliar absorption. Foliar fertilization, also known as the root of fertilizer (fertilizer), root fertilization that is the foliar spray to replenish the nutrients needed by plants, play a role in regulating plant growth, complement the missing elements, prevent premature senility and increase yield. The use of root top dressing can directly and quickly supply nutrients to prevent the nutrient from being adsorbed and fixed by the soil and improve the utilization rate of fertilizers. With less dosage, it is suitable for the application of micro-fertilizers and the yield increase