ask:
What are the seedling protection work after cotton planting?
1. Check seedlings
Under normal climatic conditions, most of the seeds are germinated and rooted about 7 days after sowing, during which time changes in sensation and seed germination are continuously checked. If some seeds or sections appear to have fallen seeds or are difficult to plant due to deep soiling, they should be remedied in time. It can be artificially shunned with small water to make up the sputum, and the soil is covered with some dry soil to protect the sputum; or the seed of the same variety after germination is added to the seed.
For the segments that have been germinated but have difficulty in topping the soil, use the scorpion to cross the topsoil to reduce the thickness of the covering soil. It is necessary to replenish the seedlings in time, otherwise the cotton seedlings will not grow well, and there will be a phenomenon of large seedlings, small seedlings and old peaches.
2. Break the knot after rain
If the cotton is planted after the rain, the ground will form a knot, the cotton seedlings are difficult to unearth, and it is easy to rot and rot, so breaking the board in time after the rain is an important measure for the whole seedling. The method is to use the animal's long-toothed scorpion to slant perpendicularly with the seeding line, or manually use a small nail to lie across the seeding line. When the cotton seedlings are unearthed, they should be close to the cotton seedlings, and have the effect of warming and protecting the seedlings and helping the seedlings to be unearthed.
3. Miao Miao, Ding Miao
After the cotton seedlings were unearthed, the growth rate of the young roots was 4-6 times faster than that of the aerial parts. When the first true leaves appeared in the seedlings, the lateral roots of the lower parts were already crowded together, so it was necessary to fix the seedlings in the early morning to prevent cotton seedlings from appearing. The phenomenon of fat, water competition and glory is conducive to the development of the individual, avoiding the formation of high-footed seedlings; it is also convenient for inter-plant loose soil and prevention of pest management and other field management. In general, cotton fields should be seedlings after seedlings. Two leaves and one heart, the seedlings are fixed when the stem has begun to be lignified. According to the density of seedlings, the seedlings should be fixed with a ruler and the dead feet should be determined to ensure the density. On-demand cotton fields, seedlings should be immediately after emergence, leaving 2 to 3 seedlings per hole. After the seedlings are fixed, the saline-alkali land can be fixed at night.
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