A kind of organic fertilizer containing vermicompost and phosphogypsum and preparation method thereof

Abstract

The invention relates to the technical field of organic fertilizers and in particular relates to an organic fertilizer containing wormcast and phosphogypsum and a preparation method of the organic fertilizer. The phosphogypsum, the wormcast, cow dung, oil cake, field mud and the like are combined to achieve a synergistic effect between the components, and therefore, the fertilizer efficiency of the organic fertilizer is improved; the organic fertilizer is reasonable in formula, appropriate in nutrition arrangement and capable of meeting the growth requirements of a plurality of crops, and therefore, the quality of the organic fertilizer is improved; in addition, in combination with the selection of the raw materials, a large amount of farm manure is taken as the raw material, and therefore, the secondary pollution on the environment caused by the traditional chemical fertilizers or organic fertilizers or compound fertilizers is avoided, and a remarkable environmental protection value can be produced; furthermore, in combination with the introduction treatment of the earthworms in the preparation process, the nutritional value of the organic fertilizer is enriched; and especially, the biologic incretion contained in the earthworms is introduced into the organic fertilizer, and therefore, the prepared organic fertilizer is capable of promoting the growth of crops.

Description

technical field [0001] The invention relates to the technical field of organic fertilizers, in particular to an organic fertilizer containing vermicompost and phosphogypsum and a preparation method thereof. Background technique [0002] Phosphogypsum is a waste produced in the production process of wet-process phosphoric acid. Due to the continuous increase in the yield of wet-process phosphoric acid production, the discharge of phosphogypsum also increases, and a large amount of discharge of phosphogypsum will cause a large amount of pollution to the environment. Pollution, which in turn affects the quality of the environment; for this reason, a large number of researchers have made explorations and researches on the reuse of phosphogypsum, and have applied phosphogypsum to the production fields of organic fertilizers, slow-release fertilizers, modifiers, etc. However, phosphorus Gypsum itself has relatively abundant phosphorus resources. In the above-mentioned utilization ...

AI Technical Summary

Problems solved by technology

[0002] Phosphogypsum is a waste produced in the production process of wet-process phosphoric acid. Due to the continuous increase in the yield of wet-process phosphoric acid production, the discharge of phosphogypsum also increases, and a large amount of discharge of phosphogypsum will cause a large amount of pollution to the environment. Pollution, which in turn affects the quality of the environment; for this reason, a large number of researchers have made explorations and researches on the reuse of phosphogypsum, and have applied phosphogypsum to the production fields of organic fertilizers, slow-release fertilizers, modifiers, etc. However, phosphorus Gypsum itself has relatively abundant phosphorus resources. In the above-mentioned utilization process, most of them use the acidic properties of phosphogypsum, but do not consider the reasonable utilization of phosphorus in phosphogypsum, which leads to Phosphogypsum reuse rate is low

[0003] At the same time, vermicompost is a good natural organic fertilizer, but due to its excellent properties, its usable space is relatively large, which leads to low fertilization utilization rate of vermicompost and insufficient supply of vermicompost

[0004] For this reason, regarding the defects of phosphogypsum and the advantages of vermicompost, as well as the shortage of supply of vermicompost in agricultural production, this researcher explored an organic fertilizer and its Preparation Process