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Full-Text Articles in Agronomy and Crop Sciences
Cover Crop Effect On Subsequent Wheat Yield In The Central Great Plains, David C. Nielsen, Drew J. Lyon, Robert K. Higgins, Gary W. Hergert, Johnathon D. Holman, Merle F. Vigil
Cover Crop Effect On Subsequent Wheat Yield In The Central Great Plains, David C. Nielsen, Drew J. Lyon, Robert K. Higgins, Gary W. Hergert, Johnathon D. Holman, Merle F. Vigil
David C. Nielsen
Crop production systems in the water-limited environment of the semiarid central Great Plains may not have potential to profitably use cover crops because of lowered subsequent wheat (Triticum asestivum L.) yields following the cover crop. Mixtures have reportedly shown less yield-reducing effects on subsequent crops than single-species plantings. This study was conducted to determine winter wheat yields following both mixtures and single-species plantings of spring-planted cover crops. The study was conducted at Akron, CO, and Sidney, NE, during the 2012–2013 and 2013–2014 wheat growing seasons under both rainfed and irrigated conditions. Precipitation storage efficiency before wheat planting, wheat water use, …
Cover Crop Biomass Production And Water Use In The Central Great Plains, David C. Nielsen, Drew J. Lyon, Gary W. Hergert, Robert K. Higgins, Johnathon D. Holman
Cover Crop Biomass Production And Water Use In The Central Great Plains, David C. Nielsen, Drew J. Lyon, Gary W. Hergert, Robert K. Higgins, Johnathon D. Holman
David C. Nielsen
The water-limited environment of the semiarid Central Great Plains may not produce enough cover crop biomass to generate benefits associated with cover crop use in more humid regions. There have been reports that cover crops grown in mixtures produce more biomass with greater water use efficiency than single-species plantings. This study was conducted to determine differences in cover crop biomass production, water use efficiency, and residue cover between a mixture and single-species plantings. The study was conducted at Akron, CO, and Sidney, NE, during the 2012 and 2013 growing seasons under both rainfed and irrigated conditions. Water use, biomass, and …
Cover Crop Mixtures Do Not Use Water Differently Than Single-Species Plantings, David C. Nielsen, Drew J. Lyon, Gary W. Hergert, Robert K. Higgins, Francisco J. Calderon, Merle F. Vigil
Cover Crop Mixtures Do Not Use Water Differently Than Single-Species Plantings, David C. Nielsen, Drew J. Lyon, Gary W. Hergert, Robert K. Higgins, Francisco J. Calderon, Merle F. Vigil
David C. Nielsen
Recent recommendations advocating the use of cover crop mixtures instead of single-species in semi-arid environments require rigorous scientific studies. One of those stated benefits is greatly reduced water use by cover crops grown in mixtures. The objectives of this study were to characterize soil water extraction patterns and determine water use of cover crops grown in single species plantings and in a 10-species mixture and to compare cover crop water use to evaporative water loss from no-till fallow. The study was conducted at Akron, CO, and Sidney, NE, during the 2012 and 2013 growing seasons on silt loam soils. At …