In recent years, many cotton farmers have been forced to pick because of their picking methods. The quality of the cotton picked, impurities, sales, and prices are low, which seriously affects the economic benefits that cotton farmers should have. So, how should cotton improve the quality of cotton picking?
A timely picking
After cotton bolls, it is usually picked every 5 to 7 days. If the picking is too early, the cotton fiber is not yet fully mature and the yield and quality are reduced. If the picking is too late, the cotton wool will reduce the fiber pulling force, the color pollution and the cotton quality. It should be noted that after the mature cotton wool is exposed to rain, the pigments of the cotton husk, cotton leaf, and bale can contaminate the cotton fiber, causing the white cotton fibers to appear yellow, red, and gray spots. If you encounter continuous rain, it will also cause mild deterioration. Therefore, pay attention to the weather forecast and grab cotton before rain. At the same time, we must timely pick the old ripe peach that has been yellowed in the lower part to avoid reducing the quality of the cotton.
Second, prevent "three wires"
"Three filaments" refers to the foreign fibers mixed into cotton, including chemical fiber, hemp brown, yarn head, plastic paper, woven bag silk, animal hair and other impurities. The mixing of “three wires†generally occurs in all aspects of picking, drying, and processing. Especially when picking, cotton farmers make extensive use of woven bags and nylon ropes as picking tools, resulting in woven bags of silk and nylon yarns mixed into cotton, and the hair is also Easy to mix when picking and drying. Due to the different nature of "three-wire" and cotton fiber, defects occur easily in the textile printing and dyeing process, which seriously affects the quality of yarn and cloth. In order to ensure the quality of cotton, the following measures should be taken: 1 Picking personnel wear white cotton cloth caps to prevent human hair from accidentally falling into the cotton; 2 Packed cotton bags must be processed using pure cotton cloth; 3 When drying cotton, try to Stay away from poultry.
Third, do a good job of "four points", "four nets", "six without"
"Quadruple" refers to picking cotton, picking fine flowers, buckwheat cotton, and floor cotton, extracting it separately, and drying it separately, storing them separately, and not mixing them together so that they can be sold in different grades. "Four nets" refers to cotton husks when picked.æŽ æŽ , , , , , , , , , , , , , 棉 棉 棉 棉 棉 棉 棉 棉 棉 棉 棉 棉 棉 棉 棉 è½ è½ è½ è½ è½ è½ è½ è½ è½ è½ è½ è½ è½ è½ , , , , , “ “ “ å…Silk, without chemical fiber products, animal hair, and sundries.
Fourth, spray ripening
For late-maturing and late-planting cotton, timely ethephon ripening should be used. The time of application should be longer than 40 days for most cotton bolls at the later stage, 15-20 days before the first frost, and the temperature should be above 20°C for spraying. . When spraying, choose no rain on the sunny day from 10:00 to 2:00 pm. Cotton fine seed breeding field prohibits ripening with drugs; cotton seeds ripened with used drugs cannot be reserved for seed use.
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