Spraying fertilizer to prevent premature aging The premature aging of cotton is usually caused by the emergence of red stem blight in cotton, which is mainly a physiological disease caused by potassium deficiency. Overcast and rainy days, large rainfall, high soil moisture content, and lack of oxygen in the roots, the ability of the roots to absorb the trace elements is reduced, which may aggravate the occurrence of the disease. Therefore, in the management, the nutrients needed by the cotton plants can be supplemented by foliar spray fertilizer to suppress the development of the disease and slow the premature aging of cotton. The specific method is: foliar spray 1% ~ 2% urea water and 1% ~ 2% potassium or potassium chloride aqueous solution or 0.2% potassium dihydrogen phosphate aqueous solution, spray two or three times, between the two Interval 5 to 7 days. The timely elimination of water accumulation in the field after raining, and shallow cultivating to remove the cotton field compaction, can also reduce the incidence of premature aging of cotton.
The pruning anti-prosperity long cotton spraying strong peach stubble in the late stage can reduce the shedding of the bolls, and replace the artificial pruning and cotton repair to achieve the “four-door fall lockâ€. There are more delays in the growth period and more rainfall in the early period, and some cotton fields have a prolonged trend. To reduce nutrient waste, the lower leaves and yellow leaves should be promptly removed to remove the upper invalid buds. For individual cotton fields with severe canopy closure, cruel cotton repairs can be adopted to remove the upper large leaf open skylight and cut off the lower empty fruit branches to achieve ventilation and light transmission, and to reduce the shedding of bells.
Early anti-lofting and anti-lofting in September coincides with cotton boll opening period. For this year's climatic characteristics of more rain, for the cotton fields with accumulated water, after the rain, the water in the cotton fields should be drained out of the field in time to prevent the yellow leaves of the cotton plants caused by the damage. Rotten root; Although there is no accumulation of water in the field, but the clay soil is heavy and there is waterlogging in the cotton field, can dig trench water seepage in cotton, reduce the surface moisture of the cotton field, improve the cotton field growth environment. After heavy rain, it must be done in time to prevent cotton from lodging.
The main insect pests in the late cotton field of pesticide selection and pest control are cotton bollworm and pupa. It is possible to control blind ticks and treat bollworms by choosing drugs. If you ignore the dangers of blind ticks, you cannot keep a limited amount of autumn peaches. The use of drugs can be combined with phoxim or profenofos, and a compound can also be used directly, such as Chengrui and Xifenglie. Prevention time is before 9:00 in the morning and after 4 in the afternoon. When spraying, it must start from the outside and go from the outside to the inside.
Hand massager
Hand massager
Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.meizons.com