Introducing wheat straw cover technology in cotton fields can increase straw utilization and improve soil nutrient status. According to the test, the amount of lint produced per mu can be increased by 10.5 kg per mu in cotton fields. In order to ensure stable production and high yield in the cotton fields covered with wheat straw, the following key links should be grasped:
Cover wheat straw. After the wheat is harvested, the wheat straw is crushed with a rake and the cotton is evenly spread between the rows of cotton with an amount of 200 kg per mu, and sprinkled with 3 kg of urea. The cultivator then cultivates the soil and covers the straw at a height of 1 to 1.5 cm. Soil layer.
Timely top dressing. In the middle and late July, the urea topdressing 15 kilograms per mu, 25 grams of general calcium.
Prevent pests and diseases. The seedlings must be sprayed with 1000 times liquid of green wind 95 mixture to spray the whole plant to prevent wilt disease and verticillium wilt in seedling stage, and timely control pests such as aphids and cotton bollworms.
Foliar spraying fertilizer. Respectively sprayed with boron-magnesium fertilizer 300 times at the bud stage and flowering stage after 4 pm to regulate plant nutrition and reduce the shedding of the bells.
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