Recently, farmers in the main cotton producing areas have reported that due to the recent rainy days and heavy rainfall, the growth of cotton fields has been delayed by about one week compared with previous years. Some leaves have become yellow, and some blind mites have become more serious, leading to the buds falling off.
The reporter immediately contacted the cotton expert Yu Hongzhang. According to Yu Hongzhang from June 29 to July 2, a survey of the villages in Hanchuan City and Xiaonan District: After the rapid drought and flood, some cotton areas suffered from locust disasters. Most of the cotton fields lacked boron and potassium deficiency symptoms have been revealed.
Yu Hongzhang analysis, the main reason for de-fertilization is that the fertilizer loss in the early stage is serious. In the later period, the rain period is too long to be fertilized. Some cotton before the buckwheat (oil) is transplanted less than the base fertilizer, and the top dressing is not timely; The fertilization formula is not reasonable enough, and the fertilization method is not appropriate. Some farmers will spread the fertilizer on the surface of the cotton field, and the amount of fertilizer lost will be more. At present, it is necessary to strengthen the classification management of cotton after the rain as soon as possible, and strive to resist the disaster.
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