Soil Test Phosphorus as an Indicator of Nitrate-Nitrogen Leaching Risk in Tile Drainage Water

被引：2
|
作者：
Kinley, R. D. [1 ]
Gordon, R. J. [2 ]
Stratton, G. W. [3 ]
机构：
[1] Nova Scotia Agr Coll, Dept Plant & Anim Sci, Truro, NS B2N 5E3, Canada
[2] Univ Guelph, Dept Land Resource Sci, Guelph, ON N1G 2W1, Canada
[3] Nova Scotia Agr Coll, Dept Environm Sci, Truro, NS B2N 5E3, Canada
来源：
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2010年 / 84卷 / 04期
关键词：
Nitrate-nitrogen; Drainage; Soil phosphorus; Manure; STRATEGIES; LOSSES;
D O I：
10.1007/s00128-010-9964-5
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A 2 year tile drainage study of 39 fields in Nova Scotia, Canada was conducted. Weekly nitrate-nitrogen (NO3-N) concentrations were highest in spring and fall during high flow. Fields receiving poultry or swine manure had elevated drainage NO3-N and soil test phosphorus. Water quality guidelines for NO3-N (10 mg L-1) were exceeded on 90% of rotations (corn-grass or corn-grain) and 13% of long-term cover fields. A significant correlation between NO3-N and soil test P (r (2) = 0.42; p < 0.001) was found. The 10 mg L-1 guideline was exceeded at 100% of fields with soil test phosphorus > 200 mg kg(-1) and 60% overall.
引用
收藏
页码：413 / 417
页数：5
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