Slow-release organic fertilizer for tea herb and preparation method thereof

Abstract

The invention provides a slow-release organic fertilizer for tea herb and a preparation method thereof. The slow-release organic fertilizer for tea herb is composed of lignin, kieselguhr, humic acid, calcium-based silicate mineral, nitrogenous fertilizer, phosphatic fertilizer, potash fertilizer, trace elements and water, wherein the trace elements contain calcium superphosphate, magnesium sulfate crystal, manganese sulfate crystal and copper sulfate crystal. The preparation method comprises the following steps: dissolving and stirring all the components, and then mixing and pelletizing, thereby obtaining the slow-release organic fertilizer for tea herb. The formula of the slow-release organic fertilizer for tea herb is reasonable; under the synergistic effect of all the components, the use ratio of organic fertilizer and the yield of tea herb are greatly increased; and meanwhile, the problem of eutrophication or nutrient deficiency symptom of the crops and the problem of water pollution caused by fertilizer loss are effectively solved, the soil is improved, the resource is saved and the cost is lowered; and the preparation method is simple and meets the requirement for large-scale industrial production.

Description

technical field [0001] The invention relates to an organic fertilizer and a preparation method thereof, in particular to a slow-release organic fertilizer for tea grass and a preparation method thereof. Background technique [0002] With the increase of population and the sharp reduction of arable land, human survival is facing severe challenges. In order to produce more food, humans began to use chemical fertilizers at the beginning of the last century, which also artificially changed the evolution process of the soil, making the natural weathered minerals unable to meet the needs of rapid growth of crops in the existing agricultural production process. Resulting in nutrient deficiency, artificial supplementary addition is required. However, crops require as many as 17 kinds of nutrients, including carbon, hydrogen, oxygen; nitrogen, phosphorus and potassium; calcium, magnesium, sulfur; Demand is also different, so compound fertilizers, compound fertilizers, and soil-test...

AI Technical Summary

Problems solved by technology

However, long-term production practice has found that the absorption rate of nutrients by different crops is different and non-linear, so controlled-release fertilizers were invented, mainly sulfur-coated and wax-coated technologies, but the utilization rate of instant fertilizers still cannot be solved. Furthermore, it cannot solve the problem of crop eutrophication or deficiency and the problem of water pollution caused by the loss of instant fertilizer