Agronomic and environmental aspects of phosphate fertilizers varying in source and solubility: an update review

被引:218
作者
Chien, S. H. [1 ]
Prochnow, L. I. [2 ]
Tu, S. [3 ]
Snyder, C. S. [4 ]
机构
[1] IFDC, Muscle Shoals, AL USA
[2] IPNI Brazil Program, Piracicaba, SP, Brazil
[3] IPNI SW China Reg, Chengdu, Peoples R China
[4] IPNI Nitrogen Program, Conway, AR USA
关键词
Phosphate fertilizers; Agronomic effectiveness; Cadmium; P runoff; Eutrophication; TRITICUM-AESTIVUM L; LIQUID SWINE MANURE; TAIHU LAKE REGION; SOIL-PHOSPHORUS; TRIPLE SUPERPHOSPHATE; ROCK PHOSPHATE; BIOAVAILABLE PHOSPHORUS; DIAMMONIUM PHOSPHATE; FIELD-EVALUATION; ACID SOILS;
D O I
10.1007/s10705-010-9390-4
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
This review discusses and summarizes the latest reports regarding the agronomic utilization and potential environmental effects of different types of phosphate (P) fertilizers that vary in solubility. The agronomic effectiveness of P fertilizer can be influenced by the following factors: (1) water and citrate solubility; (2) chemical composition of solid water-soluble P (WSP) fertilizers; (3) fluid and solid forms of WSP fertilizers; and (4) chemical reactions of P fertilizers in soils. Non-conventional P fertilizers are compared with WSP fertilizers in terms of P use efficiency in crop production. Non-conventional P fertilizers include directly applied phosphate rock (PR), partially acidulated PR (PAPR), and compacted mixtures of PR and WSP. The potential impacts of the use of P fertilizers from both conventional (fully acidulated) and non-conventional sources are discussed in terms of (1) contamination of soils and plants with toxic heavy metals, such as cadmium (Cd), and (2) the contribution of P runoff to eutrophication. Best practices of integrated nutrient management should be implemented when applying P fertilizers to different cropping systems. The ideal management system will use appropriate sources, application rates, timing, and placement in consideration of soil properties. The goal of P fertilizer use should be to optimize crop production without causing environmental problems.
引用
收藏
页码:229 / 255
页数:27
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