What is foliar fertilizer?

Introduction to Foliar Fertilizer

Foliar fertilizer refers to fertilizer that applies the nutrients needed by crops directly to the leaves to make up for the lack of nutrients absorbed by the plant roots.

Characteristics of foliar fertilizer

advantage

First, foliar fertilizer is absorbed quickly. Various nutrients enter the plant body directly from the leaves and can be quickly absorbed by the plant;

Second, foliar fertilizer has a strong effect. Foliar fertilizer is easily absorbed by plants, which can quickly alleviate the fertilizer deficiency of crops, promote the progress of various physiological processes in plants, and improve the quality of plants;

Third, the amount of foliar fertilizer used is small and the cost is low. Foliar fertilizer is sprayed directly on the leaves, which saves more materials than root fertilization.

shortcoming

First, leaves with thicker cuticle have a low penetration rate of nutrients and absorb less;

Second, foliar fertilizers tend to drip from the leaves, and the sprayed nutrients are easily lost in rain;

Third, the spray liquid dries up quickly on the leaves, affecting the plant's absorption;

Fourth, nutrients such as calcium are difficult to transfer from the absorption site to other parts;

Fifth, the nutrients provided by foliar fertilizers cannot meet all the needs of plant growth;

Sixth, improper use of foliar fertilizers can easily cause plant leaf burns;

Seventh, the effect of foliar fertilizer is short-lived and requires multiple spraying, which is time-consuming and labor-intensive.

Precautions for using foliar fertilizer

Foliar fertilizer should be applied on the basis of root fertilization, and appropriate spraying concentration, spraying method, spraying time and spraying time should be selected to fully exert the effect of foliar fertilizer.