306-12 An Evaluation of Crop Rotation and Soil Nutrients in the Midsouth.

Poster Number 825

See more from this Division: C03 Crop Ecology, Management & Quality
See more from this Session: Crop Ecology, Management & Quality: II

Tuesday, November 17, 2015
Minneapolis Convention Center, Exhibit Hall BC

William Jeremy Ross, Crop, Soil, and Environmental Sciences, CES, University of Arkansas, Des Arc, AR, Bobby R. Golden, Mississippi State University, Stoneville, MS, Melanie D. Fuhrman, Crop, Soil, and Enviornmental Sciences, University of Arkansas, Lonoke, AR, Trent Irby, Plant and Soil Sciences, Mississippi State University, Starkville, MS, Gene Stevens, Professor, Cropping Systems, University of Missouri Fisher Delta Research Center, Portageville, MO, Josh Lofton, Plant and Soil Science, Oklahoma State University, Stillwater, OK, Clark B. Neely, TAMU 2474, Texas Agrilife Extension Service, College Station, TX, Ronnie W. Schnell, Soil and Crop Sciences, Texas A&M University, College Station, TX, Larry Falconer, Agriculture Economy, Mississippi State University Extension, Stoneville, MS, Daniel Hathcoat, Texas A&M AgriLife Extension Service, College Station, TX, Matthew Rhine, University of Missouri, Portageville, MO and Lindsey Bell, Delta Research and Extension Center, Stoneville, MS
Due to the dramatic increase in corn acrage in the Midsouth, plus the consideration of grain sorghum on dry land acrage, an evaluation of the impact of these crops on fertility and economics of soybean production in this region is the focus of a project funded by the Mid-South Soybean Promotion Board. This study will reveiw the economic and fertility advantages and/or disadvantages of a small grain crop rotation with soybeans in the Midsouth.

Numerous studies show that both corn and soybeans benefit from a rotational cropping system.  This research has specifically been conducted in the Midwest by both Perdue and Iowa.  A report from Nebraska showed that dryland corn following soybeans yielded 17% more than corn following corn (Varvel and Wilhelm, Vol. 95 p. 1220-1225, 2003).  

Will these values hold true in the Midsouth? The soil properties present a different environment for off-season maintenance, higher temperatures,and a decrease in dryland crop yeild could be factor into the outcome of the research.

The study was established in 2014, with alll plots following a year of full season soybean.  The study has 24 treatments,  replicated 4 times,  in 7 locations through the Midsouth in five states.  

Data from the first year shows a variety of economic and enviromental effects to the crop yield.  Insect, herbicide drift, and rain fall all effected the plots. The study will be replicated for 5 years.

See more from this Division: C03 Crop Ecology, Management & Quality
See more from this Session: Crop Ecology, Management & Quality: II