Rice long-acting nitrogen fertilizer applicable to low-temperature cold region

Abstract

The invention discloses rice long-acting nitrogen fertilizer applicable to a low-temperature cold region. The rice long-acting nitrogen fertilizer applicable to the low-temperature cold region is made from 3,4-dimethylpyrazole phosphate, humic acid, sulphuric acid, ammonium hydrogen carbonate, urea and calcium nitrate. The rice long-acting nitrogen fertilizer applicable to the low-temperature cold region has the beneficial effects that the validity of the nitrogen fertilizer is prolonged, the utilization rate is improved, temperatures of soil and a water layer can be obviously improved after the rice long-acting nitrogen fertilizer is applied, and good low-temperature resistance and rice seedling rapid growth promotion effect in a rice seedling stage can be realized.

Description

technical field [0001] The invention relates to a chemical fertilizer, in particular to a rice long-acting nitrogen fertilizer suitable for low-temperature cold regions. Background technique [0002] Low-temperature cold regions are located in areas with higher latitudes or high altitudes, such as the northeast and northwest regions of China. In low-temperature and cold regions, due to the low accumulated temperature, it is generally planted for one season a year. At present, the area of ​​rice planting in low-temperature and cold regions such as Northeast my country is increasing day by day. The soil in these areas is fertile, the rain and heat are in the same season, and the land is flat, which is suitable for large-scale rice planting. However, in rice planting areas in low-temperature and cold regions, in addition to the serious loss and low utilization rate of chemical fertilizers caused by high rainfall and high temperature in summer, there are also problems such as s...

AI Technical Summary

Problems solved by technology

However, in rice planting areas in low-temperature and cold regions, in addition to the serious loss and low utilization rate of chemical fertilizers caused by high rainfall and high temperature in summer, there are also problems such as spring planting, which is not conducive to nutrient movement and rice growth due to low temperature. If the planting time is delayed, it will be vulnerable to frost damage in autumn, which has become the main factor limiting the growth and yield of rice in low-temperature cold regions

At present, there are no good production materials and methods to overcome this limiting factor except for the use of varieties that require less accumulated temperature and a shorter production period.