Long-acting compound fertilizer

Abstract

The invention discloses a long-acting compound fertilizer which is prepared by mixing the following components by the weight percentage: 12% of nitrogen, 8% of phosphorus, 9% of potassium, 15% of raw bone meal, 12% of a bean cake, and the balance being yellow phosphorus furnace slag. With addition of the raw bone meal, the bean cake and other organic matters, elements required by crops are complete, the ratio of nitrogen, phosphorus and potassium required by crop growth is more reasonable, the soil environment can be improved, the fertilizer retention capability is improved, and the fertilizer efficiency is permanent.

Description

technical field [0001] The invention relates to a compound fertilizer, in particular to an organic compound fertilizer suitable for field crops with long fertilizer effect and complete types of crop nutrient elements. Background technique [0002] Nitrogen, phosphorus, and potassium are the main elements that affect plant growth. At present, the fertilizers used for crops are mainly inorganic nitrogen fertilizers, inorganic phosphate fertilizers, and inorganic potassium fertilizers. Inorganic nitrogen fertilizers are mainly urea, ammonium bicarbonate, ammonium nitrate, and ammonium sulfate. Calcium superphosphate, diammonium hydrogen phosphate, etc. Inorganic potassium fertilizers are mainly potassium sulfate, potassium chloride, etc. Long-term application of the above inorganic fertilizers will cause soil compaction, make the soil environment bad, affect the yield of crops, and the elements required by crops are single , affecting crop growth. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] Nitrogen, phosphorus, and potassium are the main elements that affect plant growth. The fertilizers currently used for crops are mainly inorganic nitrogen fertilizers, inorganic phosphate fertilizers, and inorganic potassium fertilizers. Inorganic nitrogen fertilizers are mainly urea, ammonium bicarbonate, ammonium nitrate, and ammonium sulfate. Calcium superphosphate, diammonium hydrogen phosphate, etc. Inorganic potassium fertilizers are mainly potassium sulfate, potassium chloride, etc. Long-term application of the above inorganic fertilizers will cause soil compaction, make the soil environment poor, affect the yield of crops, and the elements required by crops are single , affecting crop growth

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