Application method of special fertilizer for nitrogen-controlling and phosphorus-promoting root zone regulation and control of drip irrigation cotton

Abstract

The invention relates to the technical field of fertilizers, in particular to an application method of a special fertilizer for nitrogen-controlling and phosphorus-promoting root zone regulation and control of drip irrigation cotton. The invention discloses the special fertilizer for drip irrigation cotton nitrogen control and phosphorus promotion root zone regulation and control. The special fertilizer comprises a special fertilizer for seedling emergence water, a special fertilizer for a bud stage, a special fertilizer for a flowering stage and a special fertilizer for a boll-setting stage. According to the solubility of different nutrients and the characteristic of movement in soil, a conventional water-soluble fertilizer with nitrogen, phosphorus and potassium mixed into a whole is changed into an easily fixed group fertilizer and an easily migrated group fertilizer, and the fertilizer enters an irrigation and fertilization system at different times, so that nitrogen, phosphorus and potassium are reasonably distributed around a cotton root system; and compared with a conventional water-soluble fertilizer, fixation of a phosphate fertilizer and gaseous loss and leaching loss of a nitrogen fertilizer are reduced, and the problem of water and fertilizer root synergy in the cotton growth process is effectively solved.

Description

[0001] This application is a divisional application with an application date of April 11, 2018, an application number of 201810323119.0, and an invention name of "A Special Fertilizer for Controlling Nitrogen and Phosphorus in Drip Irrigation of Cotton Root Zone Regulation and Its Application Method". technical field [0002] The invention relates to the technical field of fertilizers, in particular to a method for applying a special fertilizer for controlling nitrogen and promoting phosphorus in the root zone of drip irrigation cotton. Background technique [0003] Cotton production in Xinjiang plays a pivotal role in the development of China's cotton industry. At present, cotton is harvested by machinery on a large scale, which has weakened the quality advantage of the original cotton, seriously affected the quality competitiveness of raw cotton in the international market, and reduced its market share. With the influence of the regional layout of national cotton production...

AI Technical Summary

Problems solved by technology

Therefore, under the same migration time and irrigation amount, different migration speeds often lead to inconsistent distribution of nitrogen, phosphorus and potassium and cotton root system, which is not conducive to the absorption of nitrogen, phosphorus and potassium, and inhibits the improvement of water and fertilizer efficiency and crop production.