Four things to do before cotton sowing

Accumulation at the end of the season Because there is less precipitation in winter and spring and the climate is dry, the moisture content of prepared-sowing cotton fields is generally poor. Therefore, cotton should be cultivated timely before sowing.

, to ensure that the bottom of the soil is enough, the mouth is good, the virtual reality. For cotton fields that have been used for winter irrigation and good lyrics, they should be protected or covered with plastic film to reduce water evaporation.

For the cotton fields that are poorly scented, timely irrigation must be carried out to increase the area of ​​ostriches. Watering 20 days before cotton sowing can be sprayed, drenched, and then cultivated.

To be sown; close to sowing and watering can be poured into small water.

Prepare good varieties According to the production practice and test results in recent years, general cotton fields are suitable for selecting high-quality products, and suitable varieties for cultivation include Kaimian No.5 and Zhongyou.

No. 23 cotton factory, Lu research cotton 21 and so on. The occurrence of yellow wilt disease in the area, especially in severe disease fields, planting medium-grown cotton No. 2 is appropriate. Commercial cotton seeds should use the regular seed sector

The quality of seeds should be standardized, good purity, high germination rate, and high quality. The seeds that are coated must have a purity of not less than 95%.

The degree is not less than 99% and the germination rate is above 85%. If you choose to keep your own hairs, you need to do so before sowing so as to promote the ripening of cotton, increase the germination rate and enhance hair growth.

Budness. After the seeds are dried, they must be carefully selected to leave seeds that are full, robust, and uniform in size. Warm soaking and dressing seed dressings are also required before sowing. Pharmacy

Seed dressing promote the use of pesticides and fungicides mixed seed dressing, the method is to mix pesticides, and then mixed with fungicides. 70% of insecticides are used for high quality, 10 grams of medication.

1.5 to 2 kilograms of water, soak 2 kg of cotton seeds. The fungicide can be selected from 50% of Dexone or 70% Thiophanate or 50% of Carbendazim.

The amount of 0.3%.

It is very important to promote the early and normal development of cotton seedlings before applying base fertilizer. In accordance with the increase of organic fertilizer, nitrogen and phosphorus, potassium (boron, zinc)

The principle of scientific formula, balanced fertilization. The average farmyard fertilizer per acre is 2500-3000 kg or 50-75 kg cake fertilizer, 10-15 kg urea, diammonium

20-25 kg, 25 kg of silicon, calcium, magnesium and potash.

In order to integrate the fertilization in a well-prepared way, the quality of the site preparation must be fulfilled and the actual conditions should be satisfied. (The planning and tidying, plowing, hoeing, etc.

In the middle or in the middle, blanks (flats, ploughs, artificial formations, etc. are used to make the surface flat, the surface of the soil have no ridges and obvious pits), loose (

Soil plowing layer is loose, virtual imaginary, soil is finely crushed, the surface layer has no more than 2 cm diameter soil block), hoe (plow the soil when the soil moisture is suitable, the soil at this time

Loose, easy to site preparation, and at the same time allow the soil to maintain a proper moisture content at the time of sowing, which is conducive to seed germination and drought protection), net (no field crops

, weeds, waste film) standards. Site preparation is best done 3 to 5 days before sowing.

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