Water-retention high-efficiency slow release fertilizer and preparing method thereof

Abstract

The invention discloses a water-retention high-efficiency slow release fertilizer and a preparing method thereof. The preparing method comprises the following steps of: mixing constituted material composition A with composition B according to certain part by weight and carrying out fermentation so as to obtain the water-retention high-efficiency slow release fertilizer, wherein the composition A is prepared from urea, hydroxymethyl cellulose, carbon black, river sand, calcium superphosphate, saw dust, potassium chloride, attapulgite, zinc sulfate, copper sulfate, alums, magnesium carbonate and azotobacter fertilizer, and the composition B is prepared from organic waste, epoxy resin, phenolic resin, hydroxypropyl methacrylate, acrylate ammonium, amino acid fertilizer, calcium powder, ammonium molybdate, micronutrients fertilizer and bentonite. The preparing method provided by the invention is simple, the prepared water-retention high-efficiency slow release fertilizer can effectively achieve lodging resistance, disease resistance and drought resistance of crops, the crops have high absorptivity, the use ratio of the fertilizer is improved simultaneously, and damage to soil can be correspondingly relieved.

Description

technical field [0001] The invention relates to the field of organic fertilizer manufacturing, in particular to a water-retaining high-efficiency slow-release fertilizer and a preparation method thereof. Background technique [0002] Nitrogen is the most important nutrient element for crop growth. Urea is the most important variety of nitrogen fertilizer. Urea is suitable for all crops and all soils. It can be used as base fertilizer and topdressing fertilizer. It can be applied in both dry and paddy fields. However, urea is a molecule before transformation. In the state, it cannot be absorbed by the soil and is lost with water. The ammonia formed after transformation is also volatile. The loss of nitrogen in the soil is too high, the utilization rate is only 30%-40%, and the fertilizer effect period is only about 50 days. Waste also brings enormous pressure to the atmospheric environment and water environment, and is a serious non-point source pollution source. Contents o...

AI Technical Summary

Problems solved by technology

[0002] Nitrogen is the most important nutrient element for crop growth. Urea is the most important variety of nitrogen fertilizer. Urea is suitable for all crops and all soils. It can be used as base fertilizer and topdressing fertilizer. It can be applied in both dry and paddy fields. However, urea is a molecule before transformation. In the state, it cannot be absorbed by the soil and is lost with water. The ammonia formed after transformation is also volatile. The loss of nitrogen in the soil is too high, the utilization rate is only 30%-40%, and the fertilizer effect period is only about 50 days. Waste also brings enormous pressure to the atmospheric environment and water environment, and is a serious non-point source of pollution.