A soil-conditioning type fertilizer and a preparation method thereof

Abstract

The invention discloses a soil-conditioning type fertilizer. The fertilizer is prepared from following raw materials in parts by weight: 32-36 of rapeseed cake, 22-24 of furfural residue, 20-24 of gypsum, 19-23 of lime, 4-6 of vermiculite, 3-5 of molybdenum tailings, 5-7 of dolomite, 9-11 of diatomite, 7-10 of anthracite, 4-5 of calcium ammonium nitrate, 2-3 of copper sulfate, 1-2 of zinc sulfate, 1-2 of ferrous sulfate, 1-3 of manganese sulfate, 3-6 of a humate, 12-13 of a soil conditioner and a proper amount of water. The rapeseed cake, the furfural residue, and other raw materials are adopted by the soil-conditioning type fertilizer. The raw materials are convenient to take, low in cost and rich in nutrition, and capable of improving the soil structure. The vermiculite has good cation exchange property and absorptivity, and is capable of conditioning the soil structure, enhancing air permeability and water retention of the soil, allowing the acid soil to change into neutral soil, and allowing slow release of the fertilizer in crop growth media. In addition, the vermiculite can provide self-containing K, Mg, Ca and Fe, and trace Mn, Cu, Zn, and other elements for crops. The furfural residue can effectively restore the soil, and overcome pollution of furfural residue solid waste to the environment in the soil restoration process. The furfural residue solid waste is utilized reasonably, thus achieving resource utilization of pollutants. The molybdenum tailings, the dolomite, the diatomite, the anthracite, and other raw materials are added for supplement, thus fully utilizing resources, reducing the production investment and reducing pollution caused by chemical fertilizers.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a soil conditioning fertilizer and a preparation method thereof. Background technique [0002] In recent years, the world's agricultural production has continuously increased the demand for fertilizers. Due to the increase in the price of chemical fertilizers and the pollution of the environment and agricultural products caused by the extensive use of chemical fertilizers, people began to break through the inherent fertilizer mode and look for new fertilizers. my country is a big agricultural country, and it is also a big country that uses fertilizers. According to the statistics of my country's Ministry of Agriculture, the annual use of chemical fertilizers in my country accounts for 35% of the world's total. However, the utilization rate of fertilizer in our country is much lower than that in developed countries, and a large amount of fertilizer remains on the ground, whi...

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Problems solved by technology

However, the utilization rate of fertilizers in my country is much lower than that of developed countries, and a large amount of fertilizers remain on the ground, which not only causes

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