This year, due to the recent hot and high temperature after the drought, the development of cotton is very uneven, especially the number of peaches in cotton is very different. In the earlier and better-managed cotton fields, the average number of single plants in cotton is already There are 8 to 10 high-yield cultivators with up to 20 or more early-morning peaches, but only 4 to 6 of the early-day cotton in Daejeon are grown.
From the perspective of the reproductive process of cotton, Daejeon cotton now generally enters the bell stage. The period when the cotton is concentrated on the peach is the period when the amount of fertilizer is the largest. Judging from the period of time when the cotton nectar is divided, the peach that was settled before July 15 is called Peach. The peaches between July 16 and August 15 were plowed, and the peaches at the end of July were called early peaches. The peaches from the end of July to August 15 were late peaches. The fruit of peaches from August 16 to September 15 is Qiu Tao. At present, the weather is conducive to a large number of concentrated and overdone. We should seize the opportunity to exert sufficient fertilizer.
For the application of peach fertilizer, some farmers have concerns, some believe that the previous period has been enough base fertilizer, or fertilizer applied before the rain, can no longer be used; some farmers fear that the use of peach fertilizer caused by cotton shading; some believe that the late cotton Application of more fertilizer is not so effective, so as to cause waste; there is the point that the application of peach fertilizer spread urea on the line. To this end, we must balance our accounts, raise awareness, and give full play to the great role of peach fertilizer in cotton production.
A few accounts should be counted as valid seasonal accounts. The effective budding period of general cotton is around August 20, and the effective flowering period is around September 10. It is now applied peach fertilizer, and the effective growth period is still very long. The second is the cost of peach fertilizer, people are accustomed to the application of urea for cotton fertilizer, and now the market price of 1.2 to 1.3 yuan per kilogram of urea, 15 kilograms per mu need about 40 yuan. The third is the investment income account. According to many years and more practices, the application of peach fertilizer than the application of peach fertilizer, can increase 15-25 kg of seed cotton per acre, an average increase of 20 kg of seed cotton, cotton seed price is expected to calculate 5 yuan per mu can increase 200 yuan The ratio of input to income is 1:5, which is still very cost-effective.
It is clear that the law of cotton fertilization knows the transport rules of cotton fertilizer and it is of great practical significance to guide the fertilization of cotton in the field. According to the research of the agricultural scientific research department, before cotton is applied to peaches in large quantities, the nutrients are mainly transported to the growth points of the cotton plants. After the cotton plants have a large number of peaches, the nutrients are mainly transported horizontally to the bolls on the fruit branches. Therefore, there is no need to worry about using the peach fertilizer to grow wild. , shaded.
Applying Peach Fertilizer First According to the growth of this year's cotton, the application of Peach Fertilizer is better, and peaches are more widely distributed. The peach fertilizer can be applied before August 10th. . The second is the amount of fertilizer used, generally about 15 kilograms of urea per acre, and a potassium deficiency of 10 kilograms per kilogram of cotton. The third is the fertilization method. It is better to use a hole before the rain. Do not spread urea before the rain to prevent burns.
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