What effect does water-soluble fertilizer have on rice? What application methods are there? How can you identify high-quality water-soluble fertilizer?

Water-soluble fertilizer is a quick-acting fertilizer with good water solubility and no residue. It can dissolve completely in water and can be directly absorbed and utilized by crop roots and leaves. Applying water-soluble fertilizer to rice is a guarantee of increased yield and output. So what effect does water-soluble fertilizer have on rice? What application methods are there? How can you identify high-quality water-soluble fertilizer? Let us reveal them one by one below.

What effect does water-soluble fertilizer have on rice?

1. Enhance the stress resistance of plants. Potassium can reduce soluble amino acids and monosaccharides in the crop, increase cellulose, and thicken cell walls; potassium accumulating in the crop root system produces an osmotic pressure gradient that can enhance water absorption; during drought and water shortage, potassium can cause crop leaf stomata to close to prevent water loss. Therefore, potassium can enhance the crop's ability to resist disease, cold, drought, lodging, and salt.

2. Improve the quality of rice products. Increase the protein content of grain crops, the crude fat and palmitic acid content of oil crops, and the starch and sugar content of tuber and sugar crops; increase the fiber length, strength, and fineness of fiber crops and cotton; adjust the sugar-acid ratio of fruit and increase its vitamin C content; improve the shape, size, color, and flavor of fruit vegetables and enhance their storability.

3. Improve the stress resistance of rice, such as the ability to resist drought, cold, lodging, and invasion by diseases and insect pests.

What application methods are there for water-soluble fertilizer?

1. Base fertilizer: in autumn or early spring, 15-20kg per mu, fertilizer:water=1kg:100kg. Apply in furrows or spray before plowing.

2. Topdressing: during the vigorous growth period, 15-20kg per mu (only once per year), fertilizer:water=1kg:100-150kg. Apply in furrows.

3. Flush application: during the fruit swelling period, 6-8kg per mu, fertilizer:water=1kg:300kg. Apply by flushing when watering.

4. Foliar fertilizer: throughout the whole growth period, 1-2kg per mu per time, fertilizer:water=1kg:500-800kg. Spray on the leaves.

Precautions for water-soluble fertilizer

1. Do not spray on rainy or foggy days. If it rains within 4 hours after spraying, reduce the amount and spray once more.

2. For fertilizer left unused after opening, tightly tie the opening for storage to prevent moisture.

3. Please store sealed at room temperature in a cool, dry place. If water-soluble fertilizer caking occurs, it does not affect fertilizer efficiency.

4. The dosage per mu, dilution concentration, and number of applications should be appropriately increased or decreased according to the season and crop growth conditions.

5. Store this product in a cool, dry place. If caking occurs, it does not affect fertilizer efficiency.

6. Water-soluble fertilizer is a special fertilizer for high-efficiency agriculture. Different varieties of water-soluble fertilizer should be selected for use according to the crop and period.

7. Water-soluble fertilizer has a certain scientific and technical content and should not be used blindly.

8. Organic water-soluble fertilizers (alginic acid type) are generally processed and produced in coastal areas, and there are few well-known enterprises.

How can you identify high-quality water-soluble fertilizer?

1. Look at water solubility. Dissolve the fertilizer in clean water. If it is clear and transparent, that indicates good water solubility; if the solution is turbid or even has sediment, the water solubility is very poor and it cannot be used in drip irrigation systems.

2. Look at specific gravity. All water-soluble fertilizer products that meet national registration indicators have large elements, medium and trace elements, or organic matter and other nutrients added internally. The density of water-soluble fertilizer products is 1.3 kg/L. That is to say, 100 milliliters of liquid water-soluble fertilizer should actually weigh about 130 grams.

3. Look at the registration certificate number. The Ministry of Agriculture stipulates that all fertilizer commodities must implement one factory, one certificate, and borrowing or fraudulently using certificates is not allowed. Buyers can log on to the website of the National Chemical Fertilizer Quality Supervision and Inspection Center and enter the registration certificate number to verify authenticity.