It is cost-effective to apply peach fertilizer to cotton

This year, due to the influence of drought and waterlogging and the recent hot and high temperature, the progress of cotton development is very uneven, especially the number of peaches in cotton is very different. in cotton fields with earlier planting and better management, there are an average of 810 early-season peaches per plant in cotton fields. High-yield farmers have more than 20 cotton early-season peaches, while in general, there are only 4-6 cotton early-season peaches in the field.

In terms of cotton growth process, field cotton has now generally entered the boll setting period. The period when cotton is concentrated on peach is the period when the largest amount of fertilizer is needed. From the point of view of the period of cotton peach, the peach before July 15 is called Fuqian peach. The peach bearing from July 16 to August 15 is Fu peach, in which the peach at the end of July is called early peach, and the peach from July to August 15 is late peach. The peach bearing from August 16 to September 15 is autumn peach. The current weather is conducive to a large concentration of peaches, we should seize the opportunity to apply enough peach fertilizer.

Some farmers have concerns about increasing the application of peach fertilizer, some think that they have already applied enough basic fertilizer in the early stage, or that they can no longer use it if they have applied fertilizer before the rain; some farmers are afraid that applying peach fertilizer will cause shade of cotton; some think that no matter how much fertilizer is applied to cotton in the later stage, so as not to cause waste; others think that the application of peach fertilizer will do just a little bit of urea. For this reason, we must improve our understanding through accounting and comparison, and give full play to the great role of peach fertilizer in increasing cotton production.

There should be several accounts. One is the effective seasonal account. In general, the effective budding period of cotton is about August 20, and the effective flowering period is about September 10. Now, when peach fertilizer is applied, the effective growth period is still very long. The second is the cost account of peach fertilizer. People are used to using urea as cotton and peach fertilizer. Now the market price of urea is 1.2-1.3 yuan per jin, and about 40 yuan per mu for 15 kilograms. The third is the investment income account. According to many years of practice, compared with those without peach fertilizer, the application of peach fertilizer can increase the yield of seed cotton by 15kg to 25kg per mu. Based on the average increase of seed cotton by 20kg and the estimated price of seed cotton by 5 yuan per jin, the income can be increased by 200yuan per mu, and the ratio of input to income is 1:5. It's still very cost-effective.

Knowing the law of cotton fertilizer delivery is of great practical significance to guide the fertilization of cotton in the field. According to the research of agricultural research departments, before a large number of cotton peaches, nutrients are mainly transported to the growing point of cotton plants, and after a large number of cotton plants are fed on peaches, nutrients are mainly transparently transported to cotton peaches on fruit branches, so there is no need to worry about excessive growth and shade in the application of peach fertilizer.

First, according to the growth of cotton this year, good peach fertilizer can be applied before August 10. If the progress of peach setting is slow, the time of dressing peach fertilizer can be extended appropriately. The second is the amount of fertilizer applied, generally about 15 kg of urea per mu and 10 kg of potash fertilizer per mu of potassium deficient cotton fields. The third is the method of fertilization, it is better to apply it in the hole before the rain, and do not spread urea before the rain to prevent burning cotton seedlings.