Premature aging phenomenon mainly manifests as follows: First, after the peak period of cotton husks, the chlorosis between the leaves of the leaves is yellowing, and the yellowing leaves develop from top to bottom and from outside to inside, and the leaves gradually dry off. Second, in the late growth stage of cotton, the leaves turned red and lost the function of producing nutrients. The sooner the premature aging of cotton occurs, the heavier the reduction in production. The reasons are as follows: First, the soil is weak and the soil is insufficient. Soil nutrients can not meet the requirements of cotton growth and development; the second is insufficient fertilization. In particular, the shortage of potash fertilizer and nitrogen fertilizer may cause cotton growth when some farmers are afraid of large amounts of nitrogen. Third, it is caused by poor growth caused by drought or accumulation of cotton fields. Fourth, it is caused by punishing cotton and vegetative growth and reproductive growth disorders. The mulch cotton developed early, and the roots senescence was early, and the mulch was not removed during the growing period, resulting in poor root development. Sixthly, high-yielding fields had more knots and the nutrients could not meet the cotton growth and development requirements. Countermeasures: First, rational fertilization. Potassium fertilizer and nitrogenous fertilizer are applied. Potassium fertilizer is suitable for basic application or early-stage application. Nitrogen fertilizer application should be controlled by applying stable bud fertilizer, reapplying flower bell fertilizer and applying top dressing fertilizer. The second is the drought. When watering, you should master a small ditch of water, so as to prevent it from becoming overly long after watering. Third, mulch cotton will be removed in time after entering the rainy season to prevent the film from drying and affect the development of cotton roots. The fourth problem is timely drainage. Garlic Minced,Garlic Chips,Dried Garlic Granules,Frozen Garlic Huaiyang County Wanyuan Garlic Foods Processing Industries Co.,Ltd , https://www.wanyuangarlicfood.com