Ratoon rice formula special fertilizer and fertilization method thereof

Abstract

The invention relates to a ratoon rice formula special fertilizer and a fertilization method thereof, and belongs to the technical field of crop cultivation. The formula of the fertilizer is characterized in that a quick-acting nitrogen fertilizer accounts for 25-30% of the nitrogen application amount, a nitrogen fertilizer with the controlled release period of 40 days accounts for 35-40% of the nitrogen application amount, a nitrogen fertilizer with the controlled release period of 90 days accounts for 15-20% of the nitrogen application amount, a nitrogen fertilizer with the controlled release period of 110 days accounts for 10-25% of the nitrogen application amount, and the slow-release compound fertilizer with the ratio of N: P2O5: K2O being 30:10:15 is prepared by adopting a slow-release technology. The fertilization method comprises the following steps: mixing 40 kg of the special fertilizer for each mu with 10 kg of common urea, and applying the fertilizer into a field at one time by adopting rice mechanical transplanting and synchronous side deep fertilization. One-time fertilization is achieved, the whole process is effective, operation is convenient, the fertilizer utilization rate is increased, later-period management of first-season rice is facilitated, and germination of regenerated buds is improved.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a formula special fertilizer for ratooning rice and a fertilization method thereof. Background technique [0002] The ratooning rice mainly uses the dormant buds surviving on the rice pile after harvesting, and gives them suitable conditions such as water, temperature, light and nutrients to cultivate them, so that they can germinate and regenerate tillers, and then mature rice that is heading. [0003] The cultivation of ratooning rice in China has a long history. There were records of ratooning rice as early as 1700 years ago, and it continued to develop until the Ming and Qing Dynasties. But in the past, the production of ratooning rice in China was mainly as a supplementary measure for disaster relief. Especially with the acceleration of urbanization, a large number of young and middle-aged people in rural areas flow into cities and towns, and agricultur...

AI Technical Summary

Problems solved by technology

This operation will cause mechanical damage to the first season rice, which is prone to lodging. Second, it is difficult to control the timing of fertilization, especially if the application time of nitrogen fertilizer is incorrect, which will easily cause the rice to become green and late-maturing, delay the harvest of the first season rice, and affect Safe earing and yield in the later regrowth season