Current cotton technical management measures

First, do a good job in the management of seedling bed

1. Timely ventilation and dampness reduction, seedling weeding. Cotton seedling cotyledons spread flat to green, timely small ventilation to reduce humidity for 1-2 days, seize the sunny and warm weather, sun board to reduce humidity, set seedlings to weed.

2. Do a good job in cotton seedling blending. Cotton seedlings are picky and should be adjusted timely when they begin to produce true leaves. 1 bag of special biochemical preparation for seedling bed is used in each mu of standard seedling bed, 2kg is mixed with water, and sprayed evenly to prevent cotton seedlings from rising and forming tall seedlings.

3. Adjust the temperature scientifically. Pay attention to two points in bed temperature regulation: one is to persist in ventilation without exposing the film. During the period from full seedling to 2 true leaves, the bed temperature should be increased appropriately to accelerate the speed of leaf emergence and promote early planting. after the second true leaf is spread out, ventilation should be maintained day and night, especially the seedling potential of insect-resistant cotton is strong, and attention should be paid to the adjustment of the position and size of the vent. The second is to prevent headless seedlings. After the birth of true leaves, cotton seedlings should be properly insulated, and in case of low temperature weather, the vents should be closed in time to avoid cold injury and cause growth point atrophy.

Second, persist in moving bowls and squatting seedlings and transplanting them at the right time

Years of practice has proved that moving squatting seedlings can effectively shorten the squatting period of cotton seedlings after planting, wake up and grow seedlings early, generally do a good job of moving bowls and squatting seedlings 10-15 days before planting, and pay attention to the separation of large and small seedlings, and the seedlings are put in the middle of the bed. After moving the bowl, the work of "three supplements and one increase" should be done in time to supplement soil, fertilizer, water and increase the bed temperature. On the basis of doing a good job of soil preparation and fertilization in the field, the quality was guaranteed and transplanted in time from May 10 to 15.

Third, do a good job in the cultivation of intercropping crops in cotton fields

Over the years, our county is still dominated by melon cotton, soybean cotton, corn cotton and other compound planting types. Watermelon cultivation: first, continue to strengthen nursery bed management, cultivate strong melon seedlings, and second, timely do a good job in seedling refining and field preparation, fertilizer burying, nursing and other work. Green edamame beans, corn and other intercropping crops should do a good job of field management after sowing, especially nursing the previous crop, clearing ditches and regulating soil moisture.

Fourth, do a good job of direct seeding cotton production

In the coastal reclamation area of our county, there is still a certain area of direct seeding cotton, so we should pay attention to two points: first, we should timely prepare the field before sowing, such as field preparation, fertilizing, clearing ditches and soil moisture; second, we should grasp the season (around April 25) and suitable moisture to sow in time, popularize the technology of direct seeding with plastic film, and strive to get high yield as soon as possible.