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Full-Text Articles in Agronomy and Crop Sciences
Knowledge, Skills, And Abilities In The Precision Agriculture Workforce: An Industry Survey, Bruce Erickson, Scott W. Fausti, David Clay, Sharon Clay
Knowledge, Skills, And Abilities In The Precision Agriculture Workforce: An Industry Survey, Bruce Erickson, Scott W. Fausti, David Clay, Sharon Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Precision agriculture encompasses a set of related technologies aimed at better utilizing crop inputs, increasing yield and quality, reducing production risks, and enabling information flow throughout the crop supply and end-use chains. As agricultural businesses invest in precision offerings, their capacity to provide these products and services will depend on their ability to hire and retain employees with appropriate proficiency as defined in their knowledge, skills, and abilities (KSAs). A 2015 survey of agricultural retailers examined the minimum educational requirements retailers were seeking in their hires, along with the importance of a list of KSAs for the various positions that …
30 Years Of Progress Toward Increased Biomass Yield Of Switchgrass And Big Bluestem, M. D. Casler, K. P. Vogel, D. K. Lee, R. B. Mitchell, P. R. Adler, R. M. Suic, K. D. Johnson, R. L. Kallenbach, A. R. Boe, R. D. Mathison, K. A. Cassida, D. H. Min, J. Crawford, K. J. Moore
30 Years Of Progress Toward Increased Biomass Yield Of Switchgrass And Big Bluestem, M. D. Casler, K. P. Vogel, D. K. Lee, R. B. Mitchell, P. R. Adler, R. M. Suic, K. D. Johnson, R. L. Kallenbach, A. R. Boe, R. D. Mathison, K. A. Cassida, D. H. Min, J. Crawford, K. J. Moore
Agronomy, Horticulture and Plant Science Faculty Publications
Breeding to improve biomass production of switchgrass (Panicum virgatum L.) and big bluestem (Andropogon gerardii Vitman) for conversion to bioenergy began in 1992. The purpose of this study was (i) to develop a platform for uniform regional testing of cultivars and experimental populations for these species, and (ii) to estimate the gains made by breeding during 1992 to 2012. A total of 25 switchgrass populations and 16 big bluestem populations were planted in uniform regional trials at 13 locations in 2012 and 2014. The reference region was USDA Hardiness Zones 3 through 6 in the humid temperate United …
Weed Presence Altered Biotic Stress And Light Signaling In Maize Even When Weeds Were Removed Early In The Critical Weed‐Free Period, David P. Horvath, Stephanie Bruggeman, Janet Moriles-Miller, James V. Anderson, Munevver Dogramaci, Brian E. Scheffler, Alvaro G. Hernandez, Michael E. Foley, Sharon Clay
Weed Presence Altered Biotic Stress And Light Signaling In Maize Even When Weeds Were Removed Early In The Critical Weed‐Free Period, David P. Horvath, Stephanie Bruggeman, Janet Moriles-Miller, James V. Anderson, Munevver Dogramaci, Brian E. Scheffler, Alvaro G. Hernandez, Michael E. Foley, Sharon Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Weed presence early in the life cycle of maize (typically, from emergence through the 8 to 12 leaf growth stage) can reduce crop growth and yield and is known as the critical weed‐free period (CWFP). Even if weeds are removed during or just after the CWFP, crop growth and yield often are not recoverable. We compared transcriptome responses of field‐grown hybrid maize at V8 in two consecutive years among plants grown under weed‐free and two weed‐stressed conditions (weeds removed at V4 or present through V8) using RNAseq analysis techniques. Compared with weed‐free plant responses, physiological differences at V8 were identified …
Do Precision Chemical Amendment Applications Impact Sodium Movement In Dryland Semiarid Saline Sodic Soils?, Tulsi P. Kharel, David E. Clay, Cheryl Reese, Thomas Desutter, Doug D. Malo, Sharon Clay
Do Precision Chemical Amendment Applications Impact Sodium Movement In Dryland Semiarid Saline Sodic Soils?, Tulsi P. Kharel, David E. Clay, Cheryl Reese, Thomas Desutter, Doug D. Malo, Sharon Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Expanding sodicity and salinity problems have placed many northern Great Plains (NGP) soils at the sustainability tipping point. This study assessed the impact of chemical restoration on water and salt transport in undisturbed soil columns collected from three hillslope model landscape positions. The backslope (Redfield), footslope (White Lake), and toeslope (Pierpont) soils had moderate (3.27 ± 0.59), high (7.3 ± 3.34), and very high (13.29 ± 3.2) sodium adsorption ratio (SARe) values, respectively. The soils were treated with KBr and one of four soil amendments (none, H2SO4, CaSO4, and CaCl2). …
Propelled Abrasive Grit For Weed Control In Organic Silage Corn, Mauricio Erazo-Barradas, Fran Forcella, Dan Humburg
Propelled Abrasive Grit For Weed Control In Organic Silage Corn, Mauricio Erazo-Barradas, Fran Forcella, Dan Humburg
Agronomy, Horticulture and Plant Science Faculty Publications
Weed management in organic farming requires many strategies to accomplish acceptable control and maintain crop yields. This 2-yr field study used air propelled abrasive grit for in-row weed control in organically certified silage corn (Zea mays L.). Corncob grit was applied as a single application at corn vegetative growth stages V1 (one true leaf; numbers correspond to number of true leaves at the corn vegetative stage), V3, or V5 (in 2013) and V3, V5, and V7 (in 2014) and in double and triple combinations at these stages. Between-row weed control was accomplished by flaming or cultivation after the last grit …