Abstract
The invention discloses a medical stone dual-effect multi-element organic fertilizer and a preparation method thereof. The medical stone dual-effect multi-element organic fertilizer which is low in carbon and environment friendly is produced by organically blending natural humic acid, medical stone, calcium stone, bentonite, potassium oxide, ammonium phosphate, magnesium sulfate, borax, zinc sulfate, ferrous sulfate, aluminum potassium sulfate, agricultural traditional Chinese medicines (veratrum nigrum, celastrus angulatus, garlic juice, tobacco stalk, liquorice, Chinese stellera root and cyrtomium rhizome), a polyaspartic acid (PASP) plant nutrient accelerator and the like under the condition of normal temperature and normal pressure. The preparation method comprises the following steps of: crushing and milling the raw materials in the formula into powder of which the grain size is about 120 to 200 meshes; uniformly mixing the powder in a stirrer according to proportion; conveying the mixture to a granulator through a conveyor; after spraying and chelating the mixture through PASP and water mixed solution, granulating the mixture; after curing and drying the mixture with a dryer at high temperature, screening the grains, wherein the fertilizer product is 2.5 to 4.5mm in grain size, 5 to 6 Newtons in strength and less than 10 percent in free moisture; and after the product is checked to be qualified, metering and filling the product in bags. Fertilizer and medicine are integrated in the product; the product is comprehensive in nutrient elements, uniformly supplies fertilizer and is rich in organic substances and amino acids; residual fertilizer in the soil can be activated and used; the yield and the quality of crops are improved; green and organic agricultural products are produced; income of farmers is increased; the defect and difficulty brought to agricultural production and plantation by applying chemical fertilizers for a long time can be well overcome; the defects and the disadvantages of the chemical fertilizers are overcome; and the industry policy requirement of China on the economic benefit and social benefit of a green, organic and environment-friendly sustained or controlled release fertilizer is really met.
Description
technical field
[0001] The invention relates to an agricultural fertilizer, in particular to a medical stone double-effect multi-element organic fertilizer and a preparation method thereof. Background technique
[0002] At present, in my country's agricultural production and planting fertilizers, there has been a long-term single application of chemical fertilizers that lack organic matter and medium and trace elements, resulting in incomplete fertilizer nutrients and unreasonable ratios of fertilizer elements in fertilizer production and application. Undesirable conditions such as disjointed phase application in the field. As a result, the current seasonal fertilizer utilization rate in my country's current agricultural production and planting is low (the national average seasonal fertilizer utilization rate is about 30%), the residual amount of fertilizers is large, the soil is seriously polluted and hardened, and organic matter and soil microorganisms are becoming less and...
