Long-acting rice fertilizer

Abstract

The long-acting rice fertilizer is fertilizer specially for rice and has rice hull ash with trace elements as main material compounded with citric soluble phosphate fertilizer, urea, potash fertilizer, etc. Field experiment shows that the trace elements in the long-acting rice fertilizer are absorbed easily by rice with mutually synergistic effect. Burnt rice hull ash contains trace elements and organic elements essential for crop, and has the functions of killing bacteria, loosen soil, raise the water absorbing capacity and temperature of soil, promote rice seedling growth and raise rice yield.

Description

technical field [0001] The invention relates to a special fertilizer for rice, which can be used as base fertilizer for rice and top dressing in the field. Background technique [0002] Rice absorbs different nutrients in different growth stages. Therefore, it is necessary to apply fertilizers in stages according to the nutrient needs of rice in each growth stage. Base fertilizer is the basic fertilizer source for the whole process of rice development and growth. In the process of growth, such as greening, tillering, and ear raising, it is especially necessary to promote plant growth and fertilizer efficiency enhancers mainly composed of trace elements and supplemented by humic acid and zinc sulfate. For a long time, ammonium sulfate and urea are generally used in rice turning green and tillering. When these two fertilizers encounter water and high temperature, the fertilizer effect cannot be fully exerted due to water evaporation. Contents of the invention [0003] The o...

AI Technical Summary

Problems solved by technology

For a long time, rice has generally used ammonium sulfate and urea when turning green and tillering. When these two fertilizers encounter water and high temperature, the fertilizer effect cannot be fully exerted due to water evaporation. If they are used too much, it is easy to burn the seedlings and get erythema.