In the Huanghuai region of China, this year due to the long-term drought and low temperature in spring, the maturation period of most local wheat is delayed by 7 to 10 days compared with the normal year, resulting in prolongation of the symbiotic period of cotton intercropping and increasing the adverse effect of cotton seedlings on wheat. Wheat sets of cotton seedlings are very thin and their seedlings are poor. To this end, wheat must strengthen the field management of cotton intercropping and lay a good foundation for the harvest of cotton.
The reproductive characteristics of wheat intercropping cotton are characterized by the weakness of wheat seedling cotton seedlings, their sizes are uneven, their growth and development are slow, their flowering buds are late, their mid-term easy to grow, their late-maturing and late-maturing characteristics, and their current severe diseases and pests, which must be strengthened after wheat is grown. Tian Guan. Tian Guan must establish an “early†character and grasp the word “grab†to promote the rapid transformation of cotton seedlings to compensate for the lack of fertility at the seedling stage.
To seize the rammed soil loose cotton soil layer cotton soil weight, thin cotton seedlings, disease heavier, and looting hoe loose soil is the most important part of field management. "Everything begins before the seedlings begin." To achieve strong seedlings early, you must first promote root growth. After harvesting wheat, remove loose soil, remove soil compaction, reach 7-10 cm deep intercropping between rows, and 3-4 cm in shallow row between the plants. With the cultivator smashing the crushed litter to facilitate soil conservation, the soil around the cotton seedlings will be loosely and loosely permeable. , Can effectively reduce the disease, to promote the root bar, to achieve strong seedlings early.
Most of the available soil nutrients in the cotton fields that are used to grab the seedlings to raise the seedlings are consumed by the wheat, resulting in malnutrition of the cotton seedlings and severely affecting the growth and development. To do with the stubble, with fertilizer, generally acres of topdressing 7 to 10 kg of urea. For land with poor fertility, it also needs 1000-2000 kg of high-quality organic fertilizer cultivated by Mu to promote rapid growth and development of cotton seedlings. For small seedlings and weak seedlings, "eccentric fertilizers" should be appropriately increased to promote small seedlings to achieve balanced growth.
Grab water and promote seedling water in China's Huang-Huai area, after the wheat harvest has a long period of drought, the masses called the "Sun Maiji." Because of the impact of wheat in the cotton fields of wheat, most of the wheat soil is very dry, which seriously affects the growth of cotton seedlings. Should be combined with cultivator stubble and topdressing, rushing once Baomiao water. When the maximum water holding capacity in the field of 50 cm soil is less than 50%, it is necessary to tie up the top dressing and rush to raise the seedling water once, so as to promote the fertilizer with water and preserve the water with fertilizer. To implement intercropping and ditching watering, avoid flooding and flooding.
After pest control and wheat harvest, the corn borer, cotton bollworm, red spider and other pests on the wheat are transferred to the cotton to harm them. After wheat is harvested, it is necessary to seize the time to do a good job in inspection and treatment of cotton pests, and it is possible to use high-efficiency and low-toxicity pyrethroid pesticides, dilute 1000-1500 times, or use phoxim or aquaplanophosate 800 times water, using low Volume spray control, can reduce the liquid loss by 60%, control effect is good. When the conditions are met, use 100 to 150 times dilution of Bt preparation to spray, have good control effect on corn borer and cotton bollworm, and do not pollute the environment, can be promoted according to local conditions. To make full use of the conditions of more ladybugs in cotton fields, control the damage of cotton aphids.
The reproductive characteristics of wheat intercropping cotton are characterized by the weakness of wheat seedling cotton seedlings, their sizes are uneven, their growth and development are slow, their flowering buds are late, their mid-term easy to grow, their late-maturing and late-maturing characteristics, and their current severe diseases and pests, which must be strengthened after wheat is grown. Tian Guan. Tian Guan must establish an “early†character and grasp the word “grab†to promote the rapid transformation of cotton seedlings to compensate for the lack of fertility at the seedling stage.
To seize the rammed soil loose cotton soil layer cotton soil weight, thin cotton seedlings, disease heavier, and looting hoe loose soil is the most important part of field management. "Everything begins before the seedlings begin." To achieve strong seedlings early, you must first promote root growth. After harvesting wheat, remove loose soil, remove soil compaction, reach 7-10 cm deep intercropping between rows, and 3-4 cm in shallow row between the plants. With the cultivator smashing the crushed litter to facilitate soil conservation, the soil around the cotton seedlings will be loosely and loosely permeable. , Can effectively reduce the disease, to promote the root bar, to achieve strong seedlings early.
Most of the available soil nutrients in the cotton fields that are used to grab the seedlings to raise the seedlings are consumed by the wheat, resulting in malnutrition of the cotton seedlings and severely affecting the growth and development. To do with the stubble, with fertilizer, generally acres of topdressing 7 to 10 kg of urea. For land with poor fertility, it also needs 1000-2000 kg of high-quality organic fertilizer cultivated by Mu to promote rapid growth and development of cotton seedlings. For small seedlings and weak seedlings, "eccentric fertilizers" should be appropriately increased to promote small seedlings to achieve balanced growth.
Grab water and promote seedling water in China's Huang-Huai area, after the wheat harvest has a long period of drought, the masses called the "Sun Maiji." Because of the impact of wheat in the cotton fields of wheat, most of the wheat soil is very dry, which seriously affects the growth of cotton seedlings. Should be combined with cultivator stubble and topdressing, rushing once Baomiao water. When the maximum water holding capacity in the field of 50 cm soil is less than 50%, it is necessary to tie up the top dressing and rush to raise the seedling water once, so as to promote the fertilizer with water and preserve the water with fertilizer. To implement intercropping and ditching watering, avoid flooding and flooding.
After pest control and wheat harvest, the corn borer, cotton bollworm, red spider and other pests on the wheat are transferred to the cotton to harm them. After wheat is harvested, it is necessary to seize the time to do a good job in inspection and treatment of cotton pests, and it is possible to use high-efficiency and low-toxicity pyrethroid pesticides, dilute 1000-1500 times, or use phoxim or aquaplanophosate 800 times water, using low Volume spray control, can reduce the liquid loss by 60%, control effect is good. When the conditions are met, use 100 to 150 times dilution of Bt preparation to spray, have good control effect on corn borer and cotton bollworm, and do not pollute the environment, can be promoted according to local conditions. To make full use of the conditions of more ladybugs in cotton fields, control the damage of cotton aphids.
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