Basic fertilizer granulation method

Abstract

The invention relates to a basic fertilizer granulation method which comprises the following steps: heating binder raw materials including hydrochloric acid, urea, sulfuric acid and monoammonium phosphate at a certain ratio to form a liquid as a basic fertilizer spraying agent, and regulating the adding ratio of the binder to the basic fertilizer so as to ensure that a powdered basic fertilizer is granulated and the granular basic fertilizer has certain hardness and is not easily pulverized. According to the basic fertilizer granulation method provided by the invention, on one hand, the problem that the dust is too much when a farmer uses the fertilizer can be solved; on the other hand, the acid soil is improved, the absorption of nutrient elements is promoted, the N, P and K nutrient ratio is higher, and the yield and quality of plants can be improved.

Description

technical field [0001] The invention relates to a granulation method of alkaline fertilizer, which belongs to the technical field of chemical production. Background technique [0002] The serious problem of crops "high yield but not high quality, high quality but not high yield" has been plaguing China's agricultural production. In the process of crop production in my country, due to various reasons, excessive application of chemical fertilizers such as nitrogen fertilizers is often used. Although high yields are obtained, long-term large-scale application of chemical fertilizers causes soil acidification. The pH of the soil is crucial to plant growth. Soil acidification can lead to low absorption and utilization of most of the medium and trace elements, serious fertilizer loss, and the fertilizer utilization rate is less than 30%. At the same time, 60-80% of the fertilizer is easy to form insoluble substances. The phosphorus and potassium components in the soil cannot be a...

AI Technical Summary

Problems solved by technology

The pH of the soil is crucial to plant growth. Soil acidification can lead to low absorption and utilization of most of the medium and trace elements, serious fertilizer loss, and the fertilizer utilization rate is less than 30%. At the same time, 60-80% of the fertilizer is easy to form insoluble substances. Phosphorus and potassium in the soil cannot be absorbed, so the crops are malnourished and the deficiency is serious. Due to the acidification of the soil, the soil micro-ecological environment is changed, and the harmful microorganisms in the rhizosphere multiply under acidic conditions, and it is difficult to control these diseases.

And the granulation of this invention only uses sulfuric acid to sprinkle and wet, and the granulation effect cannot be known

[0006] In short, ungranulated alkaline fertilizer is a kind of multi-element fertilizer. The aqueous solution is alkaline, which can significantly improve acidic soil. It works well as a base fertilizer when cultivating large seedlings. Plants can slowly absorb the required nutrients. However, its P, The K nutrient content is low, and it cannot supplement the nitrogen nutrient needed by crops while mediating the soil. Moreover, the dust is flying when fertilizing, which is easy to cause fertilizer loss and pollute the environment. Human inhalation will damage human health.

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