Key points of Cotton Bud stage Management
Cotton bud stage is an important turning point in cotton life. In this period, vegetative growth and reproductive growth go hand in hand, mainly vegetative growth. On the basis of strong seedlings and early development, production management should take reasonable promotion and control measures to achieve stable cotton growth and build a high-yield shelf. The main technical points are as follows:
1. Continue to do a good job in ditching and drainage to prevent bright and dark waterlogging.
2. Ploughing and cultivating soil to promote the development of cotton root system.
3. Pruning in time. The vegetative growth of hybrid cotton is exuberant, and there are many leaf branches and buds. Depending on the planting density in the field, it is appropriate for the plant to leave 1-2 leaf branches, and the excess ones should be knocked out, so as to reduce nutrient consumption, facilitate ventilation and light transmission in the field, and lay the foundation for increasing bolls and reducing rotten bolls in the middle and later stages.
4. Apply bud fertilizer steadily. In the cotton field where sufficient base fertilizer has been applied at seedling stage, less nitrogen fertilizer is applied. It is suitable to apply urea 3-5 kg and potash fertilizer 5 kg per mu. For those who do not apply base fertilizer, it is appropriate to apply 50 kilograms of soil miscellaneous fertilizer and 50 kilograms of compound fertilizer per mu, and 5-6 kilograms of urea according to the growth of seedlings. To promote the steady growth of cotton plants, not crazy growth, build a high-yield shelf.
5. Chasing small seedlings to control large seedlings to promote balanced growth in the field. For the weak cotton seedlings, it is necessary to apply quick-acting nitrogen fertilizer and thin human and animal manure to extract the seedlings for 1 or 2 times, and for the growing cotton seedlings, the growth rate should be controlled properly with the principle of "fight strong but not weak" and "hit strong not thin". Strive to achieve the neat growth of cotton seedlings in the field at the bud stage.
6. prevention and control of diseases and insect pests. The disease in bud stage is mainly Fusarium wilt, mainly for prevention, and the insect pests are mainly cotton aphid, snake bugs and diamond. When reaching the control standard, drugs should be used in time.
- Prev
Strengthen the culture tube at the bud stage of cotton
After transplanting cotton this year, there was continuous drought and little rain, the temperature was unstable, and the squatting time was long, which seriously affected the growth of cotton plants. in addition, aphids and red spiders occurred in a large number and seriously harmed, resulting in the emergence of secondary squatting seedlings, a small number of cotton seedlings with red stems to the top, and true leaves dry and shedding. Recently, Rain Water alleviated the drought, and the seedling condition began to transform. The interplanting of cotton had 7 or 9 true leaves and began to bud, and the cotton also began to grow after wheat (oil), but the overall seedling condition was not as good as in previous years. The bud stage is the most important period in cotton life, so we should focus on the following measures.
- Next
The word "steady" should be the first in the management of cotton bud stage.
At present, cotton has entered the bud stage one after another. As the saying goes, "if cotton wants high yield, the stable growth of bud stage is the foundation." According to the investigation in the countryside and the problems encountered in the technical guidance, combined with the climate characteristics and the growth trend of cotton this year, the author thinks that the management of bud stage should be carried out around the word "stable" on the basis of "simplification, labor saving, high yield and high efficiency". And measures should be flexible and suitable for seedlings. The specific points are as follows: first, with the promotion of plastic film cotton and the use of herbicides, the number of intertillage is significantly reduced, but the necessary intertillage is still necessary.
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