Cotton seedlings are an important period in the cotton planting process. The quality of cotton seedlings will directly affect the future yield of cotton. So how to effectively disinfect and weed the cotton seedlings? This article will introduce the method of disinfection and weeding in cotton seedling stage. First, does the soil of the cotton seedling seedling bed need to be disinfected? At present, the seeds used in cotton production in China are mostly cotton seeds treated with foaming acid and then treated with a coating agent, which is referred to as coated cotton. The drugs in the coating agent can kill the bacteria attached to the cottonseed. However, all kinds of soil-borne bacteria that are latent in the soil have to be killed or inhibited by the application of fungicides . If this link is neglected, even a very good cotton seedling may also be infected with blight, anthracnose, stem blight and other seedlings. Diseases, therefore, when the cotton seedling bed is in full, the seedbed soil should still be applied to prevent disease, and there are many drugs to choose from, such as 25% carbendazim 1200-1500 times solution, 2.5% cola time seed coating agent 500. Double liquid, 25% Xinxiu (propiconazole) emulsifiable concentrate 5 ml, 60% Baitai water dispersible granules 8 g, respectively, 30 kg of water, and sprayed on the seedbed soil before doing the sputum, so that the medicinal liquid will be all the soil penetration. After the cotton seedlings are out, they must be sprayed in time to prevent the invasion of foreign germs. The sprayable medicament is, for example, 1:2:200 Bordeaux or 0.01%. Second, can we apply herbicides on cotton nutrition seedling beds? Cotton seedlings often encounter grass damage problems, and sometimes weeds can cause grass seedlings, which seriously inhibit the growth and development of cotton seedlings. The grassland shortage on the seedbed is often caused by two reasons. First, the seedbed is newly selected. It is too late to plough the soil. The weeds are not covered by winter ridges, spring sun, and clean, leaving residual weeds to be propagated. Second, application The farmer's fertilizer is applied to the fertilizer that is not completely decomposed, and the seeds of the weed are brought into the seedbed and rapidly multiply. Therefore, it is necessary to apply herbicide before emergence of cotton after sowing, one can choose 48% cable emulsifier 150-200 ml per mu, or 72% dur emulsifiable oil 150 ml per mu, respectively, spray 60-80 kg with water, two 23% bed grass net emulsifiable oil can be used, and 100-120 ml per acre can be sprayed with 80 kg of water to effectively prevent weed damage. Saw Blade,Circle Saw Blades,Circular Saw Blades,Wood Saw Blade Danyang Yongshun Tools Co.,Ltd , https://www.ysdrillbitset.com