Efficient polymorphous fertilizer special for vegetables and preparation method thereof

Abstract

The invention discloses an efficient polymorphous fertilizer special for vegetables, and relates to the technical field of agricultural fertilizers. The efficient polymorphous fertilizer special for the vegetables comprises the following raw materials of: 350-550 parts of urea, 40-150 parts of ammonium nitrate-phosphorus, 0-150 parts of ammonium sulfate, 150-280 parts of potassium sulfate, 100-220 parts of monoammonium phosphate and 0-10 parts of microelement fertilizer; and the raw materials are mixed, pelletized and cooled so as to obtain the polymorphous controlled-release fertilizer. The efficient polymorphous fertilizer special for the vegetables has the advantages of comprehensive and balanced nutrition, and being capable of inhibiting the occurrence of diseases and pests in soil, enhancing the disease resistance of crops, improving the fertilizer utilization rate and effectively enhancing the nutrition quality of the crops.

Description

technical field [0001] The invention belongs to the technical field of special fertilizer for crops, and in particular relates to a production technology of multi-form high-efficiency special fertilizer for vegetables. Background technique [0002] Vegetables are easy to accumulate nitrates, and 81.2% of the nitrates ingested by the human body come from vegetables. In order to pursue high yields of vegetables, vegetable farmers often use a large amount of single chemical fertilizers such as urea and ammonium bicarbonate, coupled with the unique microclimate conditions of vegetable production and relatively backward production facilities and management measures, etc., resulting in low fertilizer utilization efficiency and soil secondary salt. A series of environmental pollution and food safety issues such as waterlogging, groundwater pollution and deterioration of vegetable quality. [0003] Traditional vegetable fertilizers are mainly based on heating, humidifying, agglomer...

AI Technical Summary

Problems solved by technology

In order to pursue high yields of vegetables, vegetable farmers often use a large amount of single chemical fertilizers such as urea and ammonium bicarbonate, coupled with the unique microclimate conditions of vegetable production and relatively backward production facilities and management measures, etc., resulting in low fertilizer utilization efficiency and soil secondary salt. A series of environmental pollution and food safety issues such as waterlogging, groundwater pollution, and deterioration of vegetable quality

[0003] Traditional vegetable fertilizers are mainly based on the agglomeration method of heating, humidifying, agglomerating and rolling to form granules. In the production process, hot air stoves are often used to preheat the air to dry the materials. The investment in equipment is large, the energy consumption in the production process is high, and the environmental pollution is serious.