Jujube tree planting controlled-release fertilizer and preparation method thereof

Abstract

The invention discloses a jujube tree planting controlled-release fertilizer prepared from the following raw materials in parts by weight: 20-28 parts of brown sugar residues, 40-50 parts of switchgrass, 26-30 parts of nereocystis, 50-60 parts of waste woods, 18-25 parts of slaked lime, 20-24 parts of tea leaf residues, 60-70 parts of castor seed cakes, 2-3 parts of a biological fermentation microbial agent, 12-15 parts of limestone flour, 4-5 parts of cupric sulfate pentahydrate, 8-12 parts of ammonium chloride, 10-12 parts of potassium nitrate, 7-9 parts of urea, 2-3 parts of EDTA chelated zinc, 6-8 parts of a phosphorus fertilizer, 8-12 parts of alkyd resin, 2-3 parts of isopropanol, 3-4 parts of sodium dodecylbenzene sulfonate, 4-5 parts of a crosslinking agent and an appropriate amount of water. According to the preparation method disclosed by the invention, the characteristic of slow degradation of resin after solidification is used to ensure that N, P and K are effectively fused in the resin; the rate of degradation can be controlled by controlling the concentrations of the resin and the crosslinking agent to achieve the aim of release control; and a small amount of slaked lime which is particularly added has functions of changing soil and sterilizing, thereby providing alkaline soil suitable for growing jujube trees.

Description

technical field [0001] The invention relates to a controlled-release fertilizer for jujube planting and a preparation method thereof, belonging to the technical field of controlled-release fertilizer for jujube planting in fertilizers. 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 utiliz...

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