vegetable spraying foliar fertilizer ? Do you know? Today, let's learn about it!

1, vegetable foliar fertilizer instead of flushing fertilizer

because foliar fertilizer takes effect quickly, is simple to use and convenient to operate, and because the temperature is low in winter, the absorption capacity of root system is continuously decreasing, so many vegetable farmers should think of foliar fertilizer first when mentioning supplementary fertilizer. This traditional approach is wrong. Although the application of foliar fertilizer is much faster than flushing fertilizer, the amount of foliar fertilizer is less, which is not enough to meet the nutrition needs of vegetables in China. If vegetable farmers rely too much on foliar fertilizer and insufficient application of irrigation and fertilization, the root system of economic crops will not get enough nutrition from students, resulting in poor root growth and development, affecting the further systematic development of plants, and even causing premature aging of crops.

2. Vegetable foliar fertilizer and pesticide can be mixed arbitrarily

It is convenient to add leaf fertilizer to prevent and control diseases when spraying, but leaf fertilizer cannot be mixed with any pesticide. For example, the nutrient leaf fertilizer should not be mixed with the copper preparation, because the copper preparation is through the copper ion, and the nutrient leaf fertilizer contains a variety of ions, which will affect the release rate of the copper ion, thus affecting the ability of the drug. Amino acids, nucleotides and other leaf fertilizers have weak acidity and should not be mixed with alkaline pesticides. Before the leaf fertilizer is mixed with pesticides, a small amount of testing should be done.

3, Foliar Spraying Plant Foliar Fertilizer

Many vegetable farmers use foliar fertilizer in front of the leaves, and few vegetable farmers spray it behind the leaves. The frontal cell tissue of the leaf is dense and covered by the cuticle, and the general fertilizer is difficult to absorb. Relatively speaking, most of the leaf dorsal surface is spongy tissue, with large cell spacing and high water content, and more stomata and water holes are concentrated here. After applying foliar fertilizers, they can enter directly from the stomata and water holes, and can also penetrate directly into the cell tissue, which is easier to be absorbed. Therefore, when spraying foliar fertilizer, take an extra nozzle to spray from the lower part of the vegetable and let it touch the back of the leaf.

4, Vegetable Foliar Fertilizer Sprayer

The longer the leaf is infiltrated by foliar fertilizer, the higher the absorption rate. In order to meet our requirements, when spraying foliar fertilizer, an appropriate amount of additives to improve adhesion can be added. For example, for some special adhesives, it can also be a neutral detergent, such as washing powder, with a concentration of 0.1-0.2.

The above are the precautions for spraying foliar fertilizer on vegetables. I hope it will help you!