Nitrogen-fixing compound fertilizer and preparation method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 肖欢欢
- Publication Date
- 2019-05-14
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] The invention relates to the technical field of compound fertilizers, in particular to a compound fertilizer and a preparation method thereof. Background technique
[0002] my country is a large agricultural country, and its annual total grain production ranks first in the world; therefore, the annual amount of fertilizer used for grain planting is also relatively high. Due to the use process, preparation process, and unreasonable elements in the fertilizer, the nutrient utilization rate of the fertilizer is low, and the soil environment suffers serious ecological damage. In the existing technology, the chemical fertilizer market is mainly based on fully soluble, fast-dissolving, and fast-dispersing varieties, which further accelerates the waste of fertilizers and the loss of nutrients, making it necessary to fertilize multiple times during the planting process to meet the growth of crops. demand, which in turn increases the amount of labor and the cos...