This year, the proportion of “April seedlings” in the Korla region of Xinjiang is higher than last year. However, the sandstorm and rain in late April caused dead seedlings and rotten roots in individual cotton fields in some towns and villages, which affected the growth of cotton in the seedling stage. It had a certain impact. In order to reduce losses, local cotton farmers actively replanted and resowed crops. The local temperature has risen rapidly since May, which is conducive to cotton growth.
A local cotton farmer said that attention should be paid to the management of late sowing, resowing or replanting cotton fields:
1. If the seed hole is found to be dry and hardened in the pre-emergent cotton field, watering and soil sealing should be carried out in time. The watering time should be short and the surrounding area of the seed hole should be moist.
2. For cotton fields with late sowing, resowing or incomplete reseeding, seedlings should be checked and released in a timely manner, and the hardening of cotton fields should be removed in a timely manner.
3. For replanted cotton fields, the first sowing of cotton has shown signs of growth, but the replanting has not yet emerged. At this time, chemical control should be carried out immediately. It is recommended to spray 1.5-2 grams of metropamine per acre. When cotton enters the second leaf stage, chemical control is carried out for the second time. In the second leaf stage, the control is carried out upward and downward to reduce the height of the first node of fruit branches, promote flower bud differentiation, and cultivate strong seedlings. Spray 1.5-2 grams of mediamine per acre. Try to narrow the gap between large and small seedlings to facilitate later management.
4. For reseeding or reseeding cotton fields, it is recommended to increase the frequency of cultivating, reduce soil moisture, increase soil permeability, and promote root development.
5. Other management measures are the same as normal cotton field management.
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