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How to manage cotton during the squaring stage? These key points you need to master

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The cotton squaring stage is an important turning point in the life of the cotton plant. During this period, vegetative growth and reproductive growth proceed simultaneously, with vegetative growth predominating. Production management should, on the basis of strong seedlings and early development, adopt reasonable measures to promote and control growth, so as to achieve steady plant development and build a good framework for a high yield. The technical key points are: 1. Continue to do a good job of digging drainage ditches to prevent both surface waterlogging and subsurface waterlogging. 2. Intertill and earth up to promote the development of the cotton root system. 3. Prune in a timely manner. Hybrid cotton has vigorous vegetative growth, with more leaf branches and superfluous buds. Depending on the field planting density, it is advisable to keep 1-2 leaf branches per plant,

The cotton squaring stage is an important turning point in the life of the cotton plant. During this period, vegetative growth and reproductive growth proceed simultaneously, with vegetative growth predominating. Production management should, on the basis of strong seedlings and early development, adopt reasonable measures to promote and control growth, so as to achieve steady plant development and build a good framework for a high yield. The technical key points are:

1. Continue to do a good job of digging drainage ditches to prevent both surface waterlogging and subsurface waterlogging.

2. Intertill and earth up to promote the development of the cotton root system.

3. Prune in a timely manner. Hybrid cotton has vigorous vegetative growth, with more leaf branches and superfluous buds. Depending on the field planting density, it is advisable to keep 1-2 leaf branches per plant, and remove the excess ones, so as to reduce nutrient consumption, facilitate field ventilation and light penetration, and lay the foundation for increasing boll set and reducing boll rot in the middle and late stages.

4. Apply squaring fertilizer steadily. For cotton fields where sufficient base fertilizer has already been applied at the seedling stage, apply less nitrogen fertilizer. It is advisable to apply 3-5 kg of urea and 5 kg of potassium fertilizer per mu by drenching. For fields where no base fertilizer has been applied, it is advisable to bury and apply 50 loads of farmyard manure and 50 kg of compound fertilizer per mu, and depending on seedling growth, drench with 5-6 kg of urea. Promote steady growth of the cotton plants without excessive vegetative growth, and build a good framework for a high yield.

5. Topdress small seedlings and control large seedlings to promote balanced growth in the field. For weak and small cotton seedlings, apply 1-2 separate topdressings of quick-acting nitrogen fertilizer plus dilute human and livestock manure water to boost the seedlings. For cotton seedlings that are somewhat overly vigorous, appropriately use mepiquat chloride to control the growth rate. In chemical control, follow the principle of "treat the vigorous but not the weak" and "treat the strong but not the thin," and strive to achieve uniform growth of cotton seedlings in the field during the squaring stage.

6. Prevent and control pests and diseases. During the squaring stage, diseases are mainly Fusarium wilt, which is mainly prevented. Insect pests are mainly cotton aphids, stink bugs, and diamondback moths. When the control threshold is reached, apply pesticides in a timely manner.

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