With the rapid development of science and technology, there are more and more types of foliar fertilizers on the market. Most of these foliar fertilizers contain nutrients necessary for crops, which can prevent various physiological diseases caused by crop failure. Some foliar fertilizers contain humic acid, growth aids, and physiologically active substances, which have the effect of promoting crop growth and enhancing stress resistance. The correct use of foliar fertilizer has certain effects on improving the quality of crops and increasing yield. However, most foliar fertilizers do not contain fungicides or insecticides. There is no direct prevention and control of infestation diseases caused by fungi, bacteria and viruses. effect. However, some manufacturers and distributors of foliar fertilizers have exaggerated their words in order to obtain higher economic benefits for sales promotion, and they have been able to say nothing of their role.
Here, experts remind farmers that the use of foliar fertilizer must be targeted, and the control of crop pests and diseases should use appropriate fungicides and insecticides. Do not use foliar fertilizers as pesticides to avoid loss.