Calcium-magnesium fertilizer, preparation method and application thereof

Abstract

The invention discloses a calcium-magnesium fertilizer. The raw material formula of the fertilizer includes: calcium / magnesium mineral powder, vinegar residue and an agricultural enzyme fermentation broth in a weight ratio of 2-3:1:1. Specifically, the raw material formula of the agricultural enzyme fermentation broth includes livestock excrement, waste molasses, urea and water in a weight ratio of 1:0.8-1.2:0.1-0.5:8-12. The invention also provides a preparation method of the fertilizer, and the method includes: (1) preparation of the agricultural enzyme fermentation broth; (2) inoculation fermentation; and (3) drying and granulation. The calcium-magnesium fertilizer obtained by compounding fermentation treatment of vinegar residue, calcium / magnesium mineral powder and the agricultural enzyme fermentation broth in the invention solves the maximum utilization problem of vinegar residue resources, also effectively improves the biological efficiency of calcium and magnesium, promotes thegrowth efficiency of crops, and at the same time can provide soil effective bacteria, improve soil and prevent crop diseases.

Description

technical field [0001] The invention belongs to the field of fertilizer production, and in particular relates to a calcium-magnesium fertilizer and its preparation method and application. Background technique [0002] my country has a vast territory and many soil types. Due to heavy rainfall and strong leaching, most of the soil below the Yangtze River shows calcium and magnesium deficiency to varying degrees. Calcium and magnesium are nutrient elements that plants need more for growth. When they are deficient, they will cause the decline of plant immunity and make them susceptible to disease, and cause the reduction of crop yield and quality. In particular, the lack of calcium and magnesium in the soil will cause soil acidification. A series of secondary soil problems have been produced. The soil acidification problem caused by the high-intensity planting of greenhouse vegetables in recent years in northern my country is also related to the loss of calcium and magnesium. ...

AI Technical Summary

Problems solved by technology

And vinegar residue has high acidity and slow decay. If it is directly treated as garbage, it will pollute the environment and cause a certain degree of waste. Now domestic and foreign researchers have certain research on the resource utilization of vinegar residue, which is mainly divided into production Resource utilization such as feed protein, soy sauce raw materials, cultivation substrates, umami flavoring raw materials and recycling, etc. However, these cannot use vinegar residue in large quantities, and the consumption is relatively small, which cannot substantially solve the problem

[0004] Although some reports about the use of vinegar residues and agricultural enzymes have occurred from time to time, there are no reports on their combined application in the preparation of calcium-magnesium fertilizers. The application proposes a calcium-magnesium fertilizer and its preparation method and application. The calcium-magnesium fertilizer obtained by fermenting the agricultural enzyme fermentation liquid combined with vinegar residue and calcium / magnesium mineral powder can solve the above technical problems to a certain extent, and has excellent functional effects

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