Foliar Fertilizer Types and Correct Usage Methods Explained in Detail

Foliar fertilizer is one of the fertilizers commonly used in crop cultivation. It can strengthen crop nutrition and prevent nutrient deficiency symptoms, and it also has the advantages of fast fertilizer effect, high fertilizer utilization rate, and requiring only a small amount, which attracts many farmers to use it. So what types of foliar fertilizer are there? How should they be used? Let's take a look together.

I. Types of Foliar Fertilizer

1. Nutritional foliar fertilizer. This kind of foliar fertilizer has relatively high contents of nitrogen, phosphorus, potassium, and trace elements. It is mainly used to provide crops with various nutrient elements and improve crop nutrition, and is especially suitable for various nutrient supplements in the later stages of crop growth.

2. Regulatory foliar fertilizer. This kind of foliar fertilizer contains substances that regulate crop growth, such as auxins and hormones. It is mainly used to regulate crop growth and development, and is more suitable for the early and middle stages of growth.

3. Biological foliar fertilizer. This kind of foliar fertilizer contains microorganisms and metabolites. It can stimulate crop growth, promote crop metabolism, and reduce and prevent the harm of pests and diseases.

4. Compound foliar fertilizer. This kind of foliar fertilizer has many varieties and multiple functions. It can both provide nutrients and stimulate growth.

II. Usage Methods of Foliar Fertilizer

1. Pay attention to spraying concentration

Different foliar fertilizers have different concentrations. If the concentration is too high or too low, it will have different adverse effects on crops. First, prepare the concentration according to the product instructions, then apply it to a small area to ensure the concentration is suitable. In addition, before preparation, the sprayer should be cleaned thoroughly. Some foliar fertilizers can be mixed with pesticides, but some cannot.

2. Use foliar fertilizer reasonably

Different crops and different growth stages all require the reasonable selection of foliar fertilizer. For example, cotton, sweet potato, potato, rapeseed, and others have larger leaves and thinner cuticles, so the fertilizer solution penetrates easily, and the effect of using foliar fertilizer is relatively good; while wheat, corn, and others have smaller leaves and thicker cuticles, so the fertilizer solution penetrates with more difficulty, and the yield-increasing effect of foliar fertilizer is somewhat poorer.

3. Foliar fertilizer must be fully dissolved

Foliar fertilizer must be fully dissolved before spraying, but some solid powder foliar fertilizers dissolve slowly, so after adding water, stir thoroughly and spray only after it is completely dissolved. If it is not completely dissolved, a low concentration will lead to poor results, and a high concentration may sometimes burn the seedlings.

4. Pay attention to even spraying

When spraying foliar fertilizer, pay attention to spraying both the front and back sides of the leaves, and spray evenly. This is because the stomata of the leaves are distributed on both the front and back sides of the leaves, and some crops have more stomata on the back side than on the front side, so absorption is better this way.

5. Combined use

Foliar fertilizer should be applied in combination with soil fertilization and used together with nitrogen, phosphorus, and potassium fertilizers. This is more helpful for meeting the nutritional needs of crops throughout the entire growth period.

  The above is an introduction to the types and usage methods of foliar fertilizer. We hope it can help you. If you want to learn more related knowledge, please follow us.