Cotton rotten bell should be integrated

When the cotton enters the boll season, the phenomenon of rotten bells often occurs. Severe bark battered by 10% to 30%, resulting in reduced cotton quality and reduced yield. Therefore, comprehensive prevention and control of cotton rotten bells is an effective measure to improve cotton quality and increase economic efficiency. First, the reasons for the occurrence of rotten bell 1, the climate. July-September rainfall is more, high temperature and humidity, high humidity in the field, is conducive to the propagation of germs, seriously affecting the normal cracking of bolls, water inside the bell, the bacteria easily spread invasion, increase the occurrence of bad bell. 2. Management measures. Excessive application of nitrogen fertilizer, excessive density, extensive management, cotton plant mad long cotton fields, high humidity in the field, poor ventilation and light transmission, is conducive to the breeding of bacteria invade, the occurrence of rotten bells. 3, disease. There are two major types of diseases that cause rotten bells: The first is that the germs directly infect cotton bolls that are healthy and harmless, such as epidemics, anthrax, and keratoses. Second, infestation of cotton bolls that have been damaged causes the occurrence of cotton boll diseases such as red rot, pinkish pink, and soft rot. 4, pests. As a result of severe insect pests, the bolls are injured, which is conducive to invading, spreading and multiplying the diseased tune, resulting in the occurrence of rotten bells. Second, comprehensive management of the rotten bell technology 1, to strengthen the management of fertilizer and water. Cotton fields should be controlled by nitrogen and phosphorus supplements, which can not only prevent the growth of cotton plants from over-proliferation, but also increase the disease resistance of cotton plants and prevent premature aging. Topdressing nitrogen fertilizer is best to add fulvic acid compound fertilizer, and with foliar fertilizer, such as spraying with 2% urea and 0.2% potassium dihydrogen phosphate or other foliar fertilizer. The cotton bolling period coincides with the rainy season and generally does not require irrigation. However, it is necessary to promptly rule out the accumulation of water in the fields during rainy weather to prevent waterlogging and ensure that the cotton fields do not produce excessively high humidity. 2, fine pruning, timely control. In the middle and late July, pruning should be promptly performed, empty branches, top hearts, and old leaves should be removed to increase the ventilation of the cotton fields, reduce the humidity, and reduce the occurrence of rotten bells. In rainy years, it can be conducted every 3-5 days. In line with the principle of “multiple times, light weight and heavy weight”, the spraying of shrinking security at the bud stage, early flowering stage, flowering and bolling stage, controlling cotton growth, coordinating fertilizer management, and promoting premature maturation are also precautions against the occurrence of bad bells in Jinhua. One of the effective measures. 3, to strengthen the prevention and control of pests and diseases. More than 60% of the cotton rotten bells are caused by pests and diseases. They can be sprayed with insecticides such as enemy kills, kungfu, cotton bolls, and anti-lingling spirits. They focus on controlling bollworm, red bollworm and other borer pests to reduce wounds. , To prevent the invasion of pathogens; Spray fungicide such as carbendazim, chlorothalonil, phospha-aluminum, mancozeb, etc. to control red rot, pinkish pink disease, black fruit disease, epidemic, etc., to reduce invasion, spread and reproduction of germs The chance to alleviate the bad bell occurs. 4, grab sick bells and old cooked bells. In the early stage of the occurrence of the rotten bell, the old bells and sick bells in the lower part of the cotton plant were promptly picked and picked. Peeling and drying can not only reduce the loss of production, but also reduce the re-infection of pathogens. At the same time, remove dead branches, rotten leaves, and rotten bells to reduce the spread of pests and diseases.

Raw Material

Red Skin Peanut Kernel,New Crop Peanut Kernel,New Crop Peanut Kernel

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