Pear tree planting controlled-release fertilizer and preparation method thereof

Abstract

The invention discloses a pear tree planting controlled-release fertilizer which is prepared from the following raw materials in parts by weight: 30-35 parts of seaweed meal, 25-30 parts of bean pulp, 20-24 parts of tobacco powder, 25-28 parts of ash wood, 50-70 parts of rice straws, 65-80 parts of maize straws, 2-3 parts of EM biological agent, 12-14 parts of quartz stone powder, 8-12 parts of urea, 8-10 parts of biammonium carbonate, 6-7 parts of potassium nitrate, 7-8 parts of phosphate fertilizer, 4-5 parts of calcium chloride, 7-9 parts of borax, 8-12 parts of alkyd resin, 2-3 parts of propyl alcohol, 3-4 parts of sodium dodecyl benzene sulfonate, 5-6 parts of cross-linking agent and a proper amount of water. According to the controlled-release fertilizer disclosed by the invention, organic wastes serve as basic raw materials, nitrogen is particularly added to meet the special requirement of pear trees on the nitrogen fertilizer, the chemical components and resins are combined by utilizing solidification of the resins and cross-linking agents, and finally resin granules are prepared to be mixed in organic matters, so that the concentration change degradation rate of the cross-linking agents and resins can be controlled, the controlled release aim is achieved, and the fertilization frequency is reduced.

Description

technical field [0001] The invention relates to a controlled-release fertilizer for pear tree planting and a preparation method thereof, and belongs to the technical field of fertilizers for controlled-release fertilizers for pear trees. Background technique [0002] Chemical fertilizer is the largest material input in agricultural production. According to the statistics of the Food and Agriculture Organization of the United Nations, chemical fertilizers account for 40-60% of the increase in yield. However, the production time shows that due to the nature of the fertilizer itself and the soil Due to the impact of environmental conditions and agricultural measures, the utilization rate of chemical fertilizers is very low. The waste of nutrient resources caused by the low utilization rate of fertilizer nutrients in China is astonishing. According to statistics, the annual production and application of nitrogen fertilizer in China is about 20 million tons, and the seasonal util...

AI Technical Summary

Problems solved by technology

[0002] Chemical fertilizer is the largest material input in agricultural production. According to the statistics of the Food and Agriculture Organization of the United Nations, chemical fertilizers account for 40-60% of the increase in yield. However, the production time shows that due to the nature of the fertilizer itself and the soil The impact of environmental conditions and agricultural measures, etc., the utilization rate of chemical fertilizers is very low