Long‐term impacts of drain spacing, crop management, and weather on nitrate leaching to subsurface drains
نویسندگان
چکیده
منابع مشابه
Nitrate leaching to subsurface drains as affected by drain spacing and changes in crop production system.
Subsurface drainage is a beneficial water management practice in poorly drained soils but may also contribute substantial nitrate N loads to surface waters. This paper summarizes results from a 15-yr drainage study in Indiana that includes three drain spacings (5, 10, and 20 m) managed for 10 yr with chisel tillage in monoculture corn (Zea mays L.) and currently managed under a no-till corn-soy...
متن کاملModeling of Water Flow and Nitrate Transport to Subsurface Drains
In this study, the water flow and nitrate transport to a subsurface drain, using a simplified and detailed model, are simulated for the specific hydro-geological conditions of Elverdinge and Assenede, Belgium. Previously, the DRAIN MOD-N model proved to be able to simulate nitrate concentrations and drainage well for an in-situ leaching experiment, the “Hooibeekhoeve” in the community of Geel (...
متن کاملModeling Impacts of Tile Drain Spacing and Depth on Nitrate-Nitrogen Losses
61 S in the Gulf of Mexico have documented a large area with seasonally depleted O2 levels (<2 mg L−1). Most aquatic species cannot survive at such low O2 levels. A reduction in NO3–N loading by 30% was initially recommended to reduce hypoxia in the Gulf of Mexico (Mitsch et al., 1999). Following a scientifi c reassessment that recommended a reduction of 45% (USEPA, 2007), the USEPA developed a...
متن کاملSOIL MANAGEMENT Subsurface Drain Losses of Water and Nitrate following Conversion of Perennials to Row Crops
tificial drainage, however, are well documented and include sediment, nutrient (N, P), and pesticide delivery Nitrate losses through subsurface drains in agricultural fields pose to surface waters via subsurface drain lines (Gast et al., a serious threat to surface water quality. Substantial reductions in drainage losses of NO3–N can occur with alfalfa (Medicago sativa 1978; Logan et al., 1980,...
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ژورنال
عنوان ژورنال: Journal of Environmental Quality
سال: 2021
ISSN: 0047-2425,1537-2537
DOI: 10.1002/jeq2.20215