What is the effect of water-soluble fertilizer on rice? What are the ways to use it? How to distinguish high quality water soluble fertilizer?

Water-soluble fertilizer is a kind of quick-acting fertilizer with good water solubility and no residue, which can be completely dissolved in water and can be directly absorbed and utilized by the roots and leaves of crops. The application of water-soluble fertilizer to rice is the guarantee of increasing yield, so what is the effect of water-soluble fertilizer on rice? What are the ways to use it? How to distinguish high quality water soluble fertilizer? Let's find out one by one.

What is the effect of water-soluble fertilizer on rice?

1. Enhancing plant stress resistance of potassium can reduce soluble amino acids and monosaccharides, increase cellulose and thicken cell wall, and the accumulation of osmotic pressure gradient of potassium in crop roots can enhance water absorption. Potassium can close the stomata of crop leaves to prevent water loss under drought and water shortage. Therefore, potassium can enhance the disease resistance, cold resistance, drought resistance, lodging resistance and salt resistance of crops.

two。 Improve the quality of rice products, increase the protein content of food crops, crude fat and palmitic acid content of oil crops, starch and sugar content of potato and sugar crops, increase the fiber length, strength and fineness of fiber crops and cotton, adjust the sugar-acid ratio of fruits, increase their vitamin C content, improve the shape, size, color and flavor of fruits and vegetables, and enhance their storability.

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

What are the ways to use water-soluble fertilizer?

1. Base fertilizer: 15-20kg/ mu in autumn or spring, fertilizer: water = 1kg:100kg. Ditch application or spraying before ploughing.

two。 Topdressing: 15-20kg/ mu during the peak growth period (only once a year), fertilizer: water = 1kg:100-150kg. Open ditches and fertilize.

3. Irrigation and fertilization: fruit expansion stage 6-8kg/ mu, fertilizer: water = 1kg:300kg. Irrigate when watering.

4. Foliar fertilizer: 1-2kg/ mu / time in the whole growing period, fertilizer: water = 1kg:500-800kg. Foliar spray.

Matters needing attention of water-soluble fertilizer

1. Do not spray on rainy or foggy days. If it rains within 4 hours of spraying, you should reduce the amount and make up the spray again.

two。 The unused fertilizers after opening should be tightly tied and stored to prevent moisture.

3. Please store it in a cool, dry place at room temperature. Caking of water-soluble fertilizer will not affect the fertilizer efficiency.

4. The dosage per mu, water concentration and application times should be increased or decreased appropriately according to the season and crop growth.

5. This product is stored in a cool and dry place, if there is caking, it will not affect the fertilizer effect.

6. Water-soluble fertilizer is a high-efficiency special fertilizer for agriculture. Different varieties of water-soluble fertilizer should be selected according to crops and periods.

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

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

How to distinguish high quality water soluble fertilizer?

1. Look at the water solubility. If the fertilizer is dissolved in clear water, if it is clear and transparent, it shows that the water solubility is very good; if the solution is turbid or even precipitated, the water solubility is very poor and cannot be used in the drip irrigation system.

two。 Look at the specific gravity. All the water-soluble fertilizer products that meet the national registration indicators have added a large number of nutrients such as elements, trace elements or organic matter, and the density of water-soluble fertilizer products is 1.3 kg / L. In other words, the actual weight of 100 ml of liquid water-soluble fertilizer should be about 130 grams.

3. Look at the registration number. The Ministry of Agriculture stipulates that all fertilizer commodities must have one factory, one license, and is not allowed to borrow a card. Buyers can log on to the website of the National Fertilizer quality Supervision and testing Center and enter the registration certificate number to check the authenticity.