Potassium fulvate chelating multivariate medium trace element soil improvement agent and preparation process thereof

Abstract

The invention discloses a potassium fulvate chelating multivariate medium trace element soil improvement agent and a preparation process thereof. The process specifically comprises the steps of adding each component into a first-stage chelating reaction kettle, adjusting the moisture content of materials in the first-stage chelating reaction kettle to be 18-25%, and then sequentially performing a heating reaction by using fourth-stage chelating reaction kettles to obtain a final liquid product, wherein the prepared soil improvement agent comprises the following components in parts by weight: 15-30 parts of organic matter, 10-20 parts of zinc chelate, 10-20 parts of iron chelate, 10-30 parts of magnesium chelate, 1-5 parts of copper chelate, 1-5 parts of manganese chelate, 1-5 parts of molybdenum chelate, 2-3.5 parts of organic nitrogen, 2-3.5 parts of organic phosphorus and 2-3.5 parts of organic potassium. The preparation process disclosed by the invention can be used for performing continuous material feeding and continuous discharging production, and is high in chelating efficiency and short in time; a product has the effects of regulating the physical balance, chemical balance and biological balance of soil, and organically combines land use and land maintenance.

Description

technical field

[0001] The invention relates to a potassium fulvic acid chelated multi-component microelement soil improver and a preparation process thereof. Background technique

[0002] At present, the chemical fertilizer industry focuses on the technical progress of the existing traditional chemical fertilizers, mainly to improve the quality and reduce the cost, which itself acts as one of the culprits of the deterioration of the soil environment.

[0003] After the existing trace elements are added to fertilizers in the form of inorganic salts or directly applied to the soil, most of the added trace elements are eliminated due to the antagonism between some elements, the chemical reaction between them and the interaction of various ions in the soil. The soil is fixed and water-insoluble inorganic salts are produced, so there is a technical problem that it is difficult to be absorbed and utilized by plants. Contents of the invention

[0004] Aiming at the above proble...