Cotton seedling refers to the period from when the cotyledon expands to budding. This period of management is crucial to the formation of output, and specific measures must be implemented in accordance with the following conditions: First, strive to fully seedlings “The weather is good and the land is free of crops,†and the cotton farmer should check the seedlings in time after the cotton seedlings are unearthed. When the spacing between the seedlings is less than 50 cm, two pairs of plants can be left or mad can be used to make up for the seedlings. When the length of the ridge is less than 50 cm, the seedling transplanter can be used to transplant plants. Immediately after the emergence of air release after emergence, to prevent cotton seedlings due to high temperature under the film was burned. 1 to 2 true leaf seedlings, 3 to 4 true leaf Dingmiao. In order to preserve the seedlings, the seedlings should be divided into two. The first time the seedlings are opened, it is advisable not to set the leaves between the cotton seedlings. It is advisable to leave half of the set spacing for the second time. Dingling should ensure sufficient density. Stable seedlings should remain strong seedlings, to weak seedlings, diseased seedlings and hybrid seedlings. Second, early prevention of disease Miao disease prevention to the main, the use of drugs can have both the nutritional and antibacterial effect of the prevention of disease-resistant cotton Lok Kang, kunyuan 588 and so on. If there has been a seedling disease, it should be added at the same time to control its development. Third, science cultivator Soil compaction or cultivating after rain can remove the compaction, increase ground temperature and promote early-onset seedling growth. IV. Integrated pest management Seedling pests mainly include tigers, spider mites and aphids. The ground tiger can use phoxim with bran or chopped vegetables and spread it to the fields in the evening; red spiders usually occur in spots, especially near fields such as wheat fields, ditch, and roadsides, and should pay close attention. If any happens, pick up the treatment early; The use of avermectin + fennel can be used for medicine; in the prevention and treatment of locusts, it is not controlled by locusts, but it is only required when the leafing rate exceeds 10%. The spraying time is higher before and after noon. The effect of medication is good. Fifth, make up the base fertilizer Base fertilizers such as phosphorus, potassium, organic fertilizers, etc., which were not all applied before planting, should be supplemented early in the seedling stage. Conditions can be partial recovery of the weak cotton seedlings, skillfully chasing nitrogen fertilizer, mu urea is generally not more than 5 kg. SHANGHAI ROCATTI BIOTECHNOLOGY Co., Ltd is a leading exporter and supplier of medical equipment in China. We are not only manufacturer of medical equipment but also we are professional on providing one-stop solution of hospital project, clinic project, Education University, laboratory, government tender as well as distributors. With more than 10 years of experience, our products have been exported to more than 100 countries and have obtained good reputations because of our competitive price, high quality products and excellent service. Hospital Bed,Hospital Bed Automatic,Abs Hospital Bed,Manual Hospital Bed With Wheels Shanghai Rocatti Biotechnology Co.,Ltd , https://www.ljdmedical.com
