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Agronomy and Crop Sciences Commons

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Full-Text Articles in Agronomy and Crop Sciences

Impact Of Cover Crops And Phosphorus Fertilizer Management On Nutrient Cycling In No-Tillage Corn-Soybean Rotation, R. E. Carver, N. O. Nelson, D. S. Abel, K. Roozeboom, G. J. Kluitenberg, P. J. Tomlinson, J. R. Williams Jun 2017

Impact Of Cover Crops And Phosphorus Fertilizer Management On Nutrient Cycling In No-Tillage Corn-Soybean Rotation, R. E. Carver, N. O. Nelson, D. S. Abel, K. Roozeboom, G. J. Kluitenberg, P. J. Tomlinson, J. R. Williams

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to quantify the effects of cover crops and different fertilizer management techniques on the amount of nutrients being removed and recycled in the soil system. This study was conducted at Ashland Bottoms, KS, from 2014-2016. A 2 × 3 factorial design with three replicates was utilized in this study. The fertilizer management treatments included a control of 0 lb/a P2O5, along with fall broadcast and spring injected applications of P2O5based on a build and maintain recommendation system. Results show that total uptake of K2O …


Value Of Cover Crops In Suppressing Weeds And Protecting Cotton Yields And Likelihood Of Residual Herbicide Carryover To Cover Crops, Matheus Gabriel Palhano May 2017

Value Of Cover Crops In Suppressing Weeds And Protecting Cotton Yields And Likelihood Of Residual Herbicide Carryover To Cover Crops, Matheus Gabriel Palhano

Graduate Theses and Dissertations

Weed-resistance management has become a topic of concern for modern agriculture. Cost related to herbicide usage has increased greatly due to evolution and proliferation of resistant weeds. Therefore, experiments were conducted to investigate the potential for using cover crops to suppress problematic weeds in cotton as well as chemical options for cover crop dessication, and sensitivity of cover crops to residual herbicides were evaluated. No differences were observed for cereal rye biomass production and consequently weed suppression between broadcast and drilled planting methods. Total amount of cover crop biomass was vital to effectively suppress weeds. Hence, of the cover crops …


Can Cover Crop Use Allow Increased Levels Of Corn Residue Removal For Biofuel In Irrigated And Rainfed Systems?, S. J. Ruis, Humberto Blanco-Canqui, Paul J. Jasa, R. B. Ferguson, G. Slater Jan 2017

Can Cover Crop Use Allow Increased Levels Of Corn Residue Removal For Biofuel In Irrigated And Rainfed Systems?, S. J. Ruis, Humberto Blanco-Canqui, Paul J. Jasa, R. B. Ferguson, G. Slater

Department of Agronomy and Horticulture: Faculty Publications

Corn (Zea mays L.) residue removal at high rates can result in negative impacts to soil ecosystem services. The use of cover crops could be a potential strategy to ameliorate any adverse effects of residue removal while allowing greater removal levels. Hence, the objective of this study was to determine changes in water erosion potential, soil organic C (SOC) and total N concentration, and crop yields under early- and late-terminated cover crop (CC) combined with five levels of corn residue removal after 3 years on rainfed and irrigated no-till continuous corn in Nebraska. Treatments were no CC, early- and …


Cover Crop Effects On Corn In A Corn/Soybean Rotation, D. E. Shoup, I. A. Ciampitti, J. Kimball, Gretchen Sassenrath Jan 2017

Cover Crop Effects On Corn In A Corn/Soybean Rotation, D. E. Shoup, I. A. Ciampitti, J. Kimball, Gretchen Sassenrath

Kansas Agricultural Experiment Station Research Reports

A research study was established in 2013 in a corn and soybean rotation with cover crops planted soon after each crop harvest. A variety of complex cover crop mixtures were evaluated ranging from single-specie to 7-specie mixtures. Cover crops were terminated in the spring prior to corn planting. Corn yield responded differently among the three years of the study. In general, 2014 and 2016 showed a similar trend of decreased corn yield as the complexity of cover crop specie mixtures increased. Significant corn yield losses ranged from 8.6 to 15.1 bu/a across all cover crop treatments in 2014. In 2016, …


Cover Crop Effects On Soybean In A Soybean/Corn Rotation, D. E. Shoup, I. A. Ciampitti, J. Kimball, Gretchen Sassenrath Jan 2017

Cover Crop Effects On Soybean In A Soybean/Corn Rotation, D. E. Shoup, I. A. Ciampitti, J. Kimball, Gretchen Sassenrath

Kansas Agricultural Experiment Station Research Reports

A research study was established in 2011 in a soybean and corn rotation with cover crops planted soon after each crop harvest in the fall. A variety of complex cover crop mixtures were evaluated ranging from single specie to 7 specie mixtures. Cover crops were terminated in the spring soon after anthesis of the cool season cereal in the cover crop. Soybean yield responded differently among the four years of the study. In an extreme drought year of 2012, the unplanted check yielded 29.4 bu/a. Soybean yield was significantly reduced by 4.2 and 3.4 bu/a in treatments with wheat or …