Key techniques of Cotton cultivation and Management in Summer

Summer is the key period for cotton to build high-yield shelves and shape individuals with high light efficiency. Therefore, cotton field management should focus on promoting the rapid growth of cotton, stable construction, long health care, increasing branches and nodes and strengthening buds as the main goal, prevent the rapid turn of drought and flood, based on disaster resistance, contingency management, and grasp the following key measures.

First, flood prevention and disaster reduction. At present, it has entered the rainy season, and waterlogging occurs from time to time. In this regard, it is necessary to fight against disasters, surprise clear ditches and manage soil moisture, effectively improve the ability of cotton fields to prevent waterlogging and reduce waterlogging disasters.

Second, remove leaves and branches. In order to change the extensive management mode of planting hybrid cotton without pruning and smearing, except that the cotton fields with low density can properly select and retain strong leaf branches in the vertical direction of large rows, other cotton fields should remove excess leaf branches and buds as soon as possible in sunny days. The leaves that you choose to stay should also be cut off at the right time.

Third, loosen the soil and choke the roots. It is necessary to loosen the soil, weed in time, break the soil consolidation, improve the soil permeability, promote the root development of cotton seedlings and accelerate the growth of cotton. It is necessary to combine loosening the soil and weeding, and do a good job in cultivating the soil and choking roots.

Fourth, control insect pests. It is necessary to change the wrong understanding that insect-resistant cotton should not control insect pests, timely spray control of blind bugs, red spiders, and aphids in cotton fields, so as to provide a guarantee for the creation of high-quality groups, and pay close attention to the occurrence of cotton bollworms, no matter conventional cotton or insect-resistant cotton, as long as it meets the control standards, it is necessary to use medicine in time to control and reduce the harm.

Fifth, apply more fertilizer to build a tree. For the cotton fields with insufficient base fertilizer and no fertilizer after transplanting, or the cotton fields with slow growth and weak seedling potential, it is necessary to apply more plant-erection fertilizer to promote the rapid transformation, rapid growth and construction of cotton. In cotton fields where basic fertilizer has been applied and cotton seedlings grow normally, sufficient fertilizer should be prepared, the first flower and boll fertilizer should be applied in time after flowering, the idea of heavy nitrogen fertilizer and light potash fertilizer should be overcome, and potash fertilizer should be applied in cotton fields with no potassium fertilizer or insufficient potassium fertilizer. Cotton fields with large row spacing and low density should apply flower and boll fertilizer timely and early, ditch application should be adopted, combined application of nitrogen fertilizer, potash fertilizer and organic fertilizer should be adopted in fertilizer types, and high quality compound fertilizer should be advocated. If boron fertilizer is not applied in the base fertilizer, appropriate amount of boron fertilizer should be sprayed.

Sixth, remedy due to disasters. Cotton lodging caused by strong winds and torrential rains should be helped in time; cotton fields flooded by strong winds and torrential rains should be drained and waterlogged in time; and cotton seedlings should be hurt by hail disasters.