Loss control nitrogenous fertilizer and producing method thereof
A production method and technology of nitrogen fertilizer, applied in the direction of phosphate fertilizer, fertilization device, fertilizer mixture, etc., can solve the problems of high price, inseparable, loss of surface source, etc., achieve high production efficiency, small footprint, and improve utilization rate Effect
Inactive Publication Date: 2008-07-02
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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The invention relates to a loss-controlled nitrogen fertilizer and a production method thereof which is characterized in that particles are contained in loss-controlled agent and nitrogen fertilizer; the exterior face of the particles are sprayed with oil and the weight proportion of various ingredients is 6-15 of the loss-controlled agent, 90-110 of the nitrogen and 5-10 of the oil, wherein, the weight proportion of the loss-controlled agent is 100-300 of attapulgite, 1-5 of polyacrylamide, 1-10 of monoammonium. The production method is that the loss-controlled agent is added to crushed urea powder according to the proportion of 6-15 percent for evenly blending; the obtained mixture is then treated with pelletizing on a double-roller compaction granulator; the particle diameter is controlled at 3-10 mm and the pelletized particles are then conveyed to an oiling drum of a compound fertilizer for spraying and oiling. The invention can reduce the loss of nitrogen elements by 20-60 percent, improve the utilization efficiency of the nitrogen, reduction the pollution of nitrogen to water and air and has the function of soil improvement.
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