Cotton management must start with the word "early", early adjustment and early cultivation. During chemical regulation, according to different cotton species, cultivation methods, and soil fertility, uniformly dispensed chemicals for cotyledon stage regulation to ensure the quality of chemical regulation. Cultivation should be tailored to the individual without leaving partition walls. Cotton should strengthen integrated prevention and control of diseases and insect pests and adhere to the seedling stage. Based on the inquiry, strengthen the management of the maintenance belt around the cotton field, effectively prevent the reproduction and damage of pests, and implement the management of the seedling stage to lay a solid foundation for the early budding of this year's cotton. 1. Timely protection from wind, rain, low temperature, and secondary salinization damage. For the cotton field after emergence, because the cotton seedlings are young, the ability to absorb nutrients is weak, the leaf area is small, and the organic nutrients for photosynthesis are insufficient. Coupled with the influence of the harsh climate environment, the root growth is more difficult, which intensifies the disease. occur. If cotton seedlings encounter rain before they emerge from the soil, soil compaction affects seedling emergence. After the rain, they must hurry up tilling, and if rotten seeds and buds are found, they need to be replanted in time; cotton seedlings should be cultivated in time to disperse moisture after the rain and break compaction. In order to improve the ground temperature, reduce soil moisture, reduce salinization, prevent rotten seeds, rotten buds, rotten roots, and promote root development. Therefore, intertillage during the cotton seedling stage and improved ground temperature are necessary methods to deal with diseases at the seedling stage. It is recommended that broad cotton farmers: intertillage immediately after the cotton emerges to maintain soil moisture and at the same time remove weeds. Strict cultivating quality to achieve the effect of dispersing moisture and increasing temperature. When cultivating, do not pull the edge film, do not bury the edge film, do not damage the seedlings, and do not compress the seedlings. 2. Chemical control of cotton seedling stage. It is recommended that many farmers and friends in the cotton seedling stage can carry out 2-3 chemical adjustments according to the growth of cotton seedlings and the sensitivity of the type to methyramine. After the cotton is present and the cotyledons are flattened and turned green, the first methyramine is performed after the seedlings. Chemical control should be based on seedling conditions, combining light control, diligent control, and promoting control. For Wangchang cotton, it can increase the number of meepamine control. Pay attention to the time of chemical control and the amount of medicine generally based on the growth and appearance of cotton seedlings. Sensitive control. 3. Strengthen the monitoring and forecasting of diseases and insect pests, promptly launch the prevention and control of cotton thrips, cotton bugs and other pests in the seedling stage, so as to achieve early detection and early control to ensure the steady growth of cotton. After cotton full seedlings to 4 true-leaf stage, gather to control cotton thrips; before cotton 4 true-leaf stage, control cotton bugs on field weeds, 4-6 true-leaf stage gather to prevent cotton thrips The nymphs are in the field, and group prevention and control and unified prevention and control are carried out. 4. Establish a mindset that the seedlings will grow longer, and don't use foliar fertilizer and hormones indiscriminately. Eliminate the use of hormones indiscriminately, do not blindly implement policies, do not disrupt wars, establish a mindset of gradual growth of seedlings, and gradual disasters. Do not adopt the counterproductive approach. Foliar fertilizer and hormones will break the balance of cotton growth and form after the rain. Unbalanced growth brings difficulties to management. Make cotton grow steadily but not prosperous, beware of prosperous growth. As the saying goes, "dry roots, wet seedlings; aerobic roots, anaerobic seedlings; cold roots, hot seedlings; lean soils grow roots, fertile soils grow seedlings; phosphorus promotes roots, and nitrogen promotes seedlings." Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone 4 Wire Intercom System,Analog Intercom System Doorbell,China 4 Wire Video Door Phone,4 Wire Connection System,4 Wire Intercom Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com
Key points of field management after cotton comes out