1. Insufficient lye: After cotton sowing, it is necessary to check the soil moisture in time. For the poorly plucked and possibly dry cotton fields, it is possible to ditch the small water on the side of the seed ditch; in the water-free condition, the cotton field can be repressed before the seedlings emerge. Mentioning.
2, after the rain: after sowing cotton rain, the ground is easy to plate from the shell, after the rain should be timely scratching loose soil, remove the compaction, to help the seedlings unearthed. If the soil is too thick, the soil shall be used to save the seedlings; the seedlings that emerge will not withstand the sun's strong light, and when the seedlings are planted, a small amount of wet soil shall be kept in the upper part of the seedlings.
3. Incomplete emergence: After cotton sowing, it is necessary to promptly check the emergence of seedlings. Once it is found that missed sowing or rotten seed, rotten buds, early reseeding germination; found missing lines, breaking line, immediately transplanted seedlings to make plants. Before emergence of a true leaf, the cotton seedlings were transplanted with buds and seedlings were transplanted with tape. Regardless of the transplanting method used, watering should be minimized to reduce the time for seedlings. In order to prevent seedlings from sprouting seedlings, transplanted cotton seedlings should occupy more space.
4, encounter cold weather: cotton sowing seedlings during the period, the weather is often changeable, once encountered low-temperature weather, it is necessary to timely squatting warming, or along the ridge to spread plant ash in order to increase the soil temperature around the cotton seedlings. When necessary, the cotton seedlings can be sprayed with 25% carbendazim 500 to 800 times solution or 70% thiophenebujin 1000 times to prevent the disease from spreading.
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