Calcium-magnesium-containing organic mineral fertilizer and preparation method thereof

Abstract

The invention relates to a calcium-magnesium-containing organic mineral fertilizer. The calcium-magnesium-containing organic mineral fertilizer consists of the following ingredients in percentage by weight: 5 to 30 percent of lime nitrogen, 10 to 15 percent of calcium magnesium phosphate fertilizer, 20 to 25 percent of turf, 10 to 15 percent of plant ash, 25 to 30 percent of dolomite powder with granular size of less than or equal to 60 meshes and 5 to 10 percent of bentonite. The preparation method comprises the following steps of: weighing the lime nitrogen, the calcium magnesium phosphate fertilizer, the turf, the plant ash, the bentonite and the dolomite powder according to the weight ratio; placing the materials into a stirring machine to stir and mix; performing pelleting by using apelletizer; roasting the materials at the temperature of between 200 and 400 DEG C for 20 to 50 minutes by using a roaster; and sieving the materials by using a sieving machine to prepare the calcium-magnesium-containing organic mineral fertilizer. By the calcium-magnesium-containing organic mineral fertilizer and the preparation method thereof, yield increment of crops can be promoted; quality of the crops can be improved; the structure of soil can be improved; and the crops are safe to eat.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizers, and relates to an organic mineral fertilizer containing calcium and magnesium, which can provide nutrition for crop growth; increase soil organic matter content and various biologically active substances, and improve soil physical, chemical and biological properties , improve the fertility of the soil; prevent and treat the physiological diseases of crops caused by the lack of macronutrients and micronutrients; it is a kind of production material with great utilization value in the current production of pollution-free agricultural products. Background technique [0002] For a long time, the majority of farmers have relied on the use of chemical fertilizers to promote the growth of crops and increase the yield of crops. Chemical fertilizers have laid the foundation for the development of agriculture and the protection of human food production. However, the low utilization rate of c...

AI Technical Summary

Problems solved by technology

Traditional chemical fertilizers are very easy to destroy the nutrient content in the soil. Farmyard manure has low nutrient content and high labor intensity; the harmlessness of humans and animals is low, and it is easy to spread germs

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