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从培肥土壤、维持土壤供磷水平和归还作物收获物带走的磷等 3个方面对我国目前和 2 0 10年前后的磷肥需求情况进行了论述。目前我国化学磷肥的年需求量约 10 0 0万吨 P2 O5 ,到 2 0 10年前后我国化学磷肥的年需求量仍为 10 0 0万吨 P2 O5 左右 ,提出我国磷肥产业结构的调整应当积极发展磷酸一铵、磷酸二铵和三元复合肥 ,稳定钙镁磷肥的生产 ,适当压缩过磷酸钙的生产
The requirements of phosphate fertilizers in China before and after the year of 2010 were discussed in terms of fertilizing soil, maintaining the level of soil phosphorus supply, and returning phosphorus from harvested crops. At present, the annual demand for chemical fertilizers in China is about 1.0 million tons of P2O5. By the year of 2010, the annual demand for chemical fertilizers in China is still about 1.0 million tons of P2O5. It is suggested that the adjustment of China’s phosphate fertilizer industry structure should be positive. Develop monoammonium phosphate, diammonium phosphate and ternary compound fertilizer to stabilize the production of calcium, magnesium and phosphate fertilizers and properly compress the production of calcium superphosphate