Humic acid long-acting compound fertilizer and its preparing method
A humic acid and compound fertilizer technology, applied in urea compound fertilizer, nitrogen fertilizer, organic fertilizer, etc., can solve the problems of loss of slow release performance, humic acid coating layer does not have waterproof performance, waste of formaldehyde, etc., to reduce the broken rate , reduce the fixed ratio, increase the effect of fertilizer efficiency
Inactive Publication Date: 2004-04-28
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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The present invention relates to long-acting compound fertilizer, and is especially a kind of long-acting compound humic acid fertilizer. The long-acting compound humic acid fertilizer consists of composite of humic acid, urea and formaldehyde in 25-40 wt% and soluble nitrogen fertilizer, phosphate fertilizer and potash fertilizer 60-75 wt%. The composite of composite of humic acid, urea and formaldehyde consists of turf, urea, ammonium and formaldehyde solution; and the soluble nitrogen fertilizer, phosphate fertilizer and potash fertilizer are in the weight ratio of 12-25 to 30-40 to 10-20. The product is suitable for various soil, especially for growing green vegetable, flower and fruit tree.
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Property | Measurement | Unit |
Particle size | 2.8 ~ 4.0 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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