Organic calcium fertilizer for acidified soil

Abstract

The invention discloses an organic calcium fertilizer suitable for acidized soil. The organic calcium fertilizer is prepared from attapulgite mineral powder, shell powder and microelement according to certain weight ratio. By using the excellent adsorption property of the attapulgite, the organic calcium fertilizer adsorbs the shell powder and microelement, so that the release rate of calcium oxide in the shell powder and nutritional ingredients in the microelement in the soil is effectively controlled, the effectiveness of the fertilizer is increased, all the components are safe and pollution-free, does not pollute the environment and crops, can obviously improve the use ratio of the fertilizer efficiency and the buffer capacity of the soil, so as to improve the yield and quality of the crops.

Description

technical field [0001] The invention relates to the field of organic fertilizer manufacturing, in particular to an organic calcium fertilizer suitable for acidified soil. Background technique [0002] In recent decades, soil acidification has become a serious worldwide ecological environment problem. In my country, studies have found that as many as 90% of farmland soils have been acidified to varying degrees, and the average pH value of the soil has dropped by about 0.5 units, which is equivalent to an increase of 2.2 times the amount of soil acidity on the original basis. It has become an intensive agricultural system in China. One of the main environmental problems in my country. Recent statistics show that the soil acidification problem caused by the excessive use of a large amount of nitrogen fertilizer is more serious. The amount of acidic substances per unit area produced by fertilizer application is far greater than the utilization capacity of crops, etc., resulting i...

AI Technical Summary

Problems solved by technology

Obviously, the lack of calcium in acidified soil will inevitably lead to a series of harmful reactions of crops

[0004] At present, lime substances are generally used in agricultural production to improve acidified soil, but long-term application of lime not only leads to poor soil permeability and serious soil compaction, but also affects the absorption of phosphorus by plants.

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