Rotating peanut into established bahiagrass pastures: identifying sustainable tillage operations |
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| Authors: | Chae-In Na Adam M Cook Diane L Rowland David L Wright Jerry M Bennett Amanda Smith |
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| Institution: | 1. Institute of Agriculture &2. Life Science, Gyeongsang National University, Jinju, Korea;3. Agronomy Department, University of Florida, Gainesville, FL, USA;4. North Florida Research and Education Center, University of Florida, Quincy, FL, USA;5. Agricultural and Applied Economics, University of Georgia, Tifton, GA, USA |
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| Abstract: | Integrating bahiagrass (Paspalum notatum Flueggé) into peanut (Arachis hypogaea L.) production systems can improve soil structure, and increase peanut yield. A study was conducted in 2012 and 2013 in north Florida to evaluate practices for planting peanut into bahiagrass with three tillage methods i.e.; strip till (ST), ST and high residue cultivation (ST/HRC), and conventional (CT) tillage. Tillage times were 30 d before planting (DATE1) and at planting (DATE2). Peanut grown under CT outyielded ST/HRC (6940, 6580, and 6370 kg ha?1 for CT, ST, and ST/HRC, respectively), but there was no difference in economic return across treatments (adjusted revenue avg. = US $2478 ha?1). Tillage DATE2 increased total root length compared with DATE1, particularly for CT and ST. The ST/HRC had increased total root length below 30 cm for DATE1. When peanut was planted into bahiagrass, conservation tillage practices maintained adjusted revenue comparable with CT while providing environmental benefits. |
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| Keywords: | Adjusted revenue conventional tillage crop rotation high residue cultivation strip tillage |
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