Citric acid soluble granular fertilizer and preparation process thereof

Abstract

The invention discloses a citric acid soluble granular fertilizer and a preparation process thereof, and belongs to the technical field of agricultural fertilizers. The granular fertilizer is mainly prepared by mixing and processing a disintegrating material and a powdery citric acid soluble fertilizer according to the weight ratio of (5-25): (75-95); wherein the disintegrating material is formedby mixing an inorganic disintegrating material and an organic disintegrating material, the inorganic disintegrating material is a mixture of magnesium sulfate and ammonium sulfate, and the organic disintegrating material is a mixture of an amino acid fermentation product, paper pulp and sodium dodecyl sulfate. The citric acid soluble granular fertilizer can avoid environment pollution and nutrientloss caused by a situation that a powdery citric acid soluble fertilizer drifts away along with wind during application, mechanical fertilization is facilitated, the production efficiency is improved, the labor cost is reduced, nutrient elements required by plant growth are supplemented, the crop yield is increased, the quality of agricultural products is improved, and the disclosed citric acid soluble fertilizer is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizers, and in particular relates to a citrate-soluble granular fertilizer and a preparation process thereof. Background technique [0002] Mineral fertilizers are generally divided into water-soluble fertilizers and citrate-soluble fertilizers. Citric acid-soluble fertilizers are generally insoluble in water, but soluble in 2% citric acid aqueous solution. Because citric acid is called citric acid in Japan, it can be dissolved in 2% The fertilizer of citric acid aqueous solution is also called citrate-soluble fertilizer. Such as calcium-magnesium phosphate fertilizer produced by high-temperature melting of phosphate rock, potassium-calcium-silicon-magnesium fertilizer produced by high-temperature melting of potassium ore, silicon-calcium fertilizer produced by blast furnace water quenching slag produced by iron ore smelting, and phosphate rock Silicon-calcium fertilizer produced from y...

AI Technical Summary

Problems solved by technology

Among the inorganic materials, brucite powder, dolomite powder and magnesium oxide are all insoluble in water, magnesium carbonate is slightly soluble in water, and is difficult to be absorbed and utilized by plants, and is basically an ineffective component. Magnesium chloride is soluble in water, but the content of chloride ions is high. Chlorine is avoided by plants, and its application is limited; in organic materials, formic acid, acetic acid, oxalic acid, propionic acid, butyric acid, and dimeric aspartic acid are all invalid components, and cannot be absorbed by plants, and the price is high

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