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磷是植物生长发育所需的营养元素之一,其主要来源于土壤。我国磷矿资源丰富但大多为中低品位磷矿,近年来磷矿粉直接施用效果的研究成为国内外共同关注的热点。本文从磷矿资源优化、高效利用的角度,从土壤性质、磷矿粉自身性质以及植物种类三方面分析了影响磷矿粉肥效的主要因素,综述了提高磷矿粉肥效的活化技术,探讨磷矿粉的合理施用,为合理利用中低品位磷矿粉、提高磷肥的利用率、降低磷肥的生产成本提供理论依据。对缓和目前磷肥严重短缺、氮磷钾协调等方面会有所帮助。
Phosphorus is one of the nutrients required for plant growth and development, mainly from the soil. China is rich in phosphate rock but mostly low-grade phosphate rock. In recent years, the direct application of phosphate rock powder has become a hot spot both at home and abroad. In this paper, the main factors that affect the fertilizer efficiency of phosphate rock are analyzed from the aspects of soil properties, its own properties and the plant species from the perspective of optimizing and efficient utilization of phosphate rock resources. The activation technologies to improve the fertilizer efficiency of phosphate rock are reviewed. The reasonable application of mineral powder, in order to make reasonable use of low-grade phosphate rock, improve the utilization of phosphate fertilizer, reduce the cost of phosphate fertilizer to provide a theoretical basis. To ease the current serious shortage of phosphate, nitrogen and phosphorus coordination will help.