کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10847168 | 1070105 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Soil acidification used as a management strategy to reduce nitrate losses from agricultural land
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش خاک شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Soil acidification used as a management strategy to reduce nitrate losses from agricultural land Soil acidification used as a management strategy to reduce nitrate losses from agricultural land](/preview/png/10847168.png)
چکیده انگلیسی
pH is known to be a primary regulator of nutrient cycling in soil. Increasing soil acidity in agricultural systems has the potential to slow down N cycling and reduce N losses from leaching thereby enhancing sustainability and reducing pollution. We conducted a field experiment to investigate the impact of acidity on N leaching in arable and grassland agricultural systems. The results showed that nitrate (NO3â) concentrations in soil water were greater under arable than under grassland. Soil acidification significantly lowered NO3â concentrations in soil water over winter and spring under grassland, whilst in cereal plots a similar effect was only observed in spring. Our results suggest that soil acidification decreased nitrification causing an accumulation of NH4+ which was not subject to leaching. Dissolved organic nitrogen (DON) concentrations in soil water were significantly greater under arable than grassland. Soil acidification lowered concentrations of DON in soil water, usually to a greater extent in grassland than in arable plots. It was concluded that it may be possible to use careful soil pH management as a tool to control NO3â leaching without compromising the quality of drainage water, and that this may be more effective on grassland than on arable crops.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Biology and Biochemistry - Volume 37, Issue 5, May 2005, Pages 867-875
Journal: Soil Biology and Biochemistry - Volume 37, Issue 5, May 2005, Pages 867-875
نویسندگان
Sarah J. Kemmitt, David Wright, David L. Jones,