Xu Fengzhi told reporters that cotton should be checked in time after emergence, and it is found that the seedlings should be replenished as soon as possible. The method of replenishing seedlings is mainly determined according to the seedling age of the field cotton seedlings. Generally, the seedlings are transplanted before the true leaves, and the soil is removed after the emergence of true leaves. plant.
After the cotton seedlings, the seedlings are planted in time, and the cotton fields are usually spotted. Immediately after the seedlings, the seedlings should be planted immediately. Stay strong and stay weak, stay big and go small, leave 2 to 3 plants per hole, and grow a piece of true leaves before the cotton seedlings grow. Fixed seedlings.
For cotton fields that are first sown after the seeding, the seedlings should be placed correctly after emergence. The principle of putting seedlings is to put green and not yellow, and it is best to choose the afternoon without wind and sunny days.
The seedlings should also be ploughed as early as possible, especially in the rainy years of spring. In the seedling stage, the number of times of cultivation is not as high as possible. It is necessary to pay attention to the timeliness and let the soil near the cotton plant live. For light-salt soil cotton fields that are exposed to the open field, attention should be paid to inter-row cultivating and appropriate increase in the number of cultivating. When the disease in the seedling stage is serious, it is necessary to bake the roots.
In the cotton field where the base fertilizer is applied, the seedling fertilizer may not be applied; the cotton field with insufficient base fertilizer application or poor fertilizer and water may apply the seedling fertilizer early, apply about 5 kg of nitrogen fertilizer per mu, or mix the chemical fertilizer with the organic fertilizer such as cake fertilizer and manure. In order to prevent the ground temperature from decreasing, the cotton fields before sowing are generally not suitable for watering; if the cotton fields with poor bottoms are dry, and the seedling period continues to be dry, the shallow ditch should be poured in time to pay attention to the small water. Cultivate in time after pouring. The mulching film covers the cotton field, and on the basis of applying the base fertilizer and making the bottom stalk, the topdressing stage does not carry out topdressing and watering.
Henan Science and Technology News
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