Technique for producing fertilizer containing organic chelated microelements

Abstract

The present invention relates to the production technology of organic chelating trace element fertilizer, it is carried out according to the following steps, extract humus from lignite, through precipitation, obtain required liquid, add organic chelating agent citric acid or its salts and trace elements, the obtained The obtained liquid is adjusted to be neutral with the acidity and alkalinity, and after drying, the product of the present invention is obtained. The advantage of the present invention is that the components of the extract cover the components of the soil-stable humus, and it is currently the only technological process for retaining all the effective humus in the extract through organic chelation and acid-base blending, which solves the problem of the existing simple humus. Mixing humic acid and trace elements leads to poor stability and easy decomposition of the product, which affects the use effect. The product of the invention is used for agricultural production.

Description

technical field [0001] The invention relates to a production process of agricultural fertilizers, in particular to the production of organic chelated trace element fertilizers by extracting humus substances from lignite and weathered lignite, and reacting with micronutrient elements required by plants. craft. Background technique [0002] At present, the synthetic micro-fertilizers in the fertilizer market are not very effective, whether it is soil fertilization or foliage spraying. Micro-fertilizers generally include inorganic salt micro-fertilizers and organic chelated micro-fertilizers. The utilization rate during use is low. Humus is the exchange medium for nutrients in the soil. At the same time, it is also a good organic chelating agent. Through the chelation reaction between nutrients and trace elements, humus micro-fertilizers with high solubility and easy absorption by crops are produced, which greatly improves the absorption and utilization of trace elements by cr...

AI Technical Summary

Problems solved by technology

At present, there are some simple technologies for extracting humic acid from lignite, but this technology and other technical aspects are not perfect, and cannot achieve the purpose of chelating with trace elements and improving the utilization rate of elemental fertilizers, thus affecting the use effect

Therefore, using the humic acid micro-fertilizer produced by the current existing technology has the problem of inconsistency and inconspicuous beneficial effects on crops

So far, there are no reports and applications about the technology of extracting efficient and stable humus from lignite, and adopting organic compounding and chelation reactions to produce humus chelated trace element fertilizers.