Cotton field to prevent rotten bell
As the cotton enters the ringing season, it often causes rotten bells, which results in a decline in the yield and quality. In production, it is necessary to seize the sunny day to take the initiative to prevent and control. Bad Bell Causes (1) Bad weather. August-September rainfall is more, the humidity in the field is large, the water in the bell is conducive to the invasion of bacteria. (2) Extensive management. Partial application of nitrogenous fertilizer causes long growth of cotton plants and poor ventilation in the field. (3) Diseases. Diseases such as epidemics, anthrax, and angular spot diseases can directly harm healthy bolls and suffer secondary diseases such as red rot, pinkish pink, and soft rot. (4) Pest damage. Injury caused by pests feeding cotton bolls, bacteria easily invade from the wound. Prevention and control technology (1) sway control. Pruning in time, emptying branches, picking the top of the heart, and going to the old leaves in the lower part, increase the ventilation of the cotton fields, and reduce the humidity. According to the principle of “multiple times, light weight and heavy weightâ€, spraying the methoprofen in the bud stage, early flowering stage and flowering boll stage will prevent the growth of cotton. (2) fertilizer and water management. Nitrogen supplementation and phosphorus supplementation to prevent the growth of cotton plants, improve the disease resistance of cotton plants and prevent premature aging. In the application of nitrogen fertilizer can be added fulvic acid compound fertilizer, and sprayed with 2% of urea and 0.2% potassium dihydrogen phosphate mixture. Too much rain during the flowering and bolling period requires timely drainage and lowering. (3) Pick up the sick bell and old bell. 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 removed to reduce the yield loss and reduce the re-infection of the bacteria. At the same time, remove dead branches, rotten leaves, and rotten bells to reduce the spread of pests and diseases. (4) Control pests. Focus on the prevention and control of bollworm, red bollworm and other borer pests to reduce wounds, to avoid the invasion of bacteria; spraying carbendazim, thiophanate-methyl, mancozeb and other fungicides to prevent red rot, pink powder Diseases of cotton bolls, such as black fruit disease and epidemics. Back Pain Relief Mat,Shakti Mat And Pillow,Acupuncture Massage Belt,Acupressure Massage Strap Ningbo Prestigeplus Commodity Co.,Ltd , https://www.prestigemedics.com