After the autumn, the sunshine is sufficient, as long as the cotton does not lack fertilizer and water, and does not prematurely decay, you can sit on the autumn peach.
Flexible regulation and improvement of photosynthetic efficiency: Foliar fertilization should be flexibly controlled according to the growth trend. For the weak cotton, the nitrogen is mainly used, combined with the application of phosphorus and potassium fertilizer; the growth is generally combined with NPK; the growth is dominated by phosphorus and potassium fertilizer, combined with chemical control, plus permethine plus 3 ~3.5 grams of water spray. Trace element foliar fertilizers are suitable for all types of cotton fields, especially those that are weaker.
Timely topping and pruning: When cotton enters the bud stage, 4 to 5 early buds on the first and second fruit branches should be properly removed, and the cotton should be put up early to concentrate on the peach, and the peach should be concentrated. Before the fall, remove the top heart, inhibit the ineffective growth, and improve the ventilation. Light conditions. After the topping, the axillary buds are wiped out in time to promote the conversion of nutrients to reproductive growth, so as to achieve the purpose of increasing the weight of the bells. Remove the inactive old leaves at the bottom of the cotton, take the waste branches and leaves that are covered with pests out of the cotton field, and dig deep into the pit to reduce the number of pests in the cotton field.
Timely prevention and control of pests and diseases: For the fourth-generation cotton bollworm and beet armyworm, the control indicators are immediately sprayed with insecticides to eliminate or manually capture. For Fusarium wilt and Verticillium wilt strain, spray with trichloroisocyanuric acid bactericide and combine with root irrigation. For red leaf stem blight, the main potassium fertilizer, foliar spray potassium dihydrogen phosphate.
Strengthen the late weeding and weeding: cut off the empty fruit branches, remove the big grass, and remove the invalid small flower buds.
Rainy weather prevention rotten bell: The best way to prevent rotten bells is to push branches and ridges, small rows become big lines, combined with hands and feet, is conducive to ventilation and light transmission, early removal of black peaches to dry, can increase cotton income .
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