Foliar fertilizer refers to the fertilizer that directly applies the nutrients needed by crops to the foliar to make up for the lack of nutrients absorbed by plant roots.
First, the absorption of foliar fertilizer is fast. All kinds of nutrients enter the plant directly from the leaves and can be quickly absorbed by the plant.
Second, foliar fertilizer has a strong effect. Foliar fertilizer is easy to be absorbed by plants, which can quickly alleviate the lack of fertilizer in crops, promote the progress of various physiological processes in plants, and improve the quality of plants.
Third, the amount of foliar fertilizer is small and the cost is low. Foliar fertilizer is sprayed directly on the foliar surface, which is more economical than root fertilizer.
One is cuticle thicker leaf absorption nutrient penetration rate is low, absorption quantity is little;
Second, foliar fertilization is easy to drip from the foliar, and the nutrients sprayed are easy to be lost by rain.
Third, the spray dried quickly on the leaves, affecting the absorption of plants.
Fourth, it is difficult to transfer nutrients such as calcium from the absorption site to other sites.
Fifth, the nutrients provided by foliar fertilizer can not meet all the needs of plant growth.
Sixth, improper use of foliar fertilizer is easy to cause burn of plant foliar
Seven is the foliar fertilizer effect time is short, needs to spray many times, takes time and effort.
Foliar fertilizer should be on the basis of root fertilization, choose the appropriate spraying concentration, spraying method, spraying time, spraying time, in order to give full play to the effect of foliar fertilizer.
