Water Table Management Reduces Tile Nitrate Loss in Continuous Corn and in a Soybean-Corn Rotation
نویسندگان
چکیده
منابع مشابه
Simulated N management effects on corn yield and tile-drainage nitrate loss
Thoroughly tested simulation models are needed to help quantify the long-term effects of agriculture. We evaluated the Root Zone Water Quality Model (RZWQM) response to different N management strategies and then used the tested model with observed weather data from 1961– 2003 to quantify long-term effects on corn (Zea mays L.) yield and flow weighted nitrate-N concentration in subsurface “tile”...
متن کاملIn ̄uence of water table management on corn and soybean yields
A 2-year ®eld study was conducted in eastern Ontario to evaluate the effect of water table management (WTM) on the yields of strip-cropped corn (Zea mays L.) and soybean (Glycine max Merr.). The WTM treatments consisted of two subirrigation treatments with water table controls set at 0.50 m (CWT0.5) or 0.75 m (CWT0.75) from the soil surface, and a free drainage (FD) treatment (water table 1.00 ...
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The objective of this study was to evaluate the effects of sowing procedures and the seed sowing rate of kudzu (Pueraria phaseoloides cv. ‘Comum’) in corn on corn plant development, forage dry matter production, weed infestation and soybean plant development and yield. The kudzu seeds were either broadcasted over the terrain or sown in furrows (in the main plots) at rates, in both cases, of 400...
متن کاملTile Drainage Nitrate Losses and Corn Yield Response to Fall and Spring Nitrogen Management.
Nitrogen (N) management strategies that maintain high crop productivity with reduced water quality impacts are needed for tile-drained landscapes of the US Midwest. The objectives of this study were to determine the effect of N application rate, timing, and fall nitrapyrin addition on tile drainage nitrate losses, corn ( L.) yield, N recovery efficiency, and postharvest soil nitrate content ove...
متن کاملTillage and Fertilizer Placement for the Corn-soybean Rotation
The information presented is part of ongoing research to identify effective conservation tillage systems and phosphorus (P) and potassium (K) fertilizer placements for corn and soybeans. The rate of adoption of the no-till system by Iowa producers has decreased after a marked increase during the late 80s and early 90s. Actually, the area of no-till corn has decreased slightly since 1994. Severa...
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ژورنال
عنوان ژورنال: The Scientific World JOURNAL
سال: 2001
ISSN: 1537-744X
DOI: 10.1100/tsw.2001.268