Controlled Traffic for Irrigated Double Cropping in a Semi-Arid Tropical Environment: Part 3, Timeliness and Trafficability |
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| Institution: | 1. Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583-0915, USA;2. Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA;3. Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA;4. Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, 27695-7620, USA;5. Virginia Polytechnic Institute and State University, Tidewater Agriculture Research and Extension Center, Suffolk, VA, 23437, USA;6. Department of Plant Sciences, North Dakota State University, Fargo, ND, 58108-6050, USA;7. Iowa Soybean Association, Ankeny, IA, 50023, USA;8. Department of Plant and Soil Sciences, University of Kentucky, 423 Plant Science Building, Lexington, KY, 40546, USA;9. Department of Agronomy, Iowa State University, Ames, IA, 50011-1010, USA;10. Department of Horticulture and Crop Science, The Ohio State University, Columbus, OH, 43210, USA;11. Department of Plant Science, University of Tennessee, AgResearch and UT Extension Center, Jackson, TN 38301, USA;12. Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN, 55108, USA;13. Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA;14. Delta Research and Extension Center, Mississippi State University, Stoneville, MS, 38776, USA;15. Department of Crop, Soil, and Environmental Sciences, University of Arkansas System Division of Agriculture, Little Rock, AR, 72204, USA;p. Michigan State University Extension, Allegan, MI, 49010, USA;1. Agreement FAUBA-AAPRESID, Av. San Martín 4453, Ciudad Autónoma de Buenos Aires, 1417, Argentina;2. Universidad de Buenos Aires, Facultad de Agronomia, Fertilidad y Fertilizantes, Av. San Martín 4453, Ciudad Autónoma de Buenos Aires, 1417, Argentina;3. Soil Institute, Natural Resources Research Centre, INTA, National Council of Scientific and Technical Research, CONICET, Universidad de Buenos Aires, Facultad de Agronomia, Nicolas Repetto y de los Reseros s/n., Hurlingham, Buenos Aires, 1686, Argentina;1. Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 45000, China;2. Institute of Geographical Sciences and Natural Resource Research, Chinese Academy of Sciences, Beijing 100101, China;3. College of Forestry, Henan Agricultural University, Zhengzhou 450002, China;1. College of Land Science and Technology, China Agricultural University, Beijing 100193, China;2. Rothamsted Research, Harpenden, St Albans AL5 2JQ, UK |
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| Abstract: | Timeliness and trafficability were investigated in a research programme undertaken to assess the potential of controlled traffic for irrigated double cropping in a semi-arid tropical environment. Two controlled traffic treatments, using direct drilling and conventional tillage between the traffic lanes, were compared with a conventional tillage system. Controlled traffic with direct drilling provided marked improvements in timeliness, allowing earlier planting opportunities in all seasons of work, compared with both controlled traffic with cultivation and conventional tillage.In a separate experiment, compacted traffic lanes improved access after rainfall. Under the conditions of the experiment, it would have been possible to sow a crop using controlled traffic and direct drilling 7 days after rainfall, whereas 15 days were required to gain access to begin primary tillage on the conventional treatment.The timeliness benefits obtained from a system of controlled traffic and direct drilling were very dependent on seasonal variations. Nevertheless, this work indicated that, to a greater or lesser extent, timeliness benefits could be gained in all seasons. While this may not necessarily lead to a yield increase on an individual crop basis, it reduces the risk of missing a crop, and offers the opportunity to improve the reliability of producing two crops per year in a semi-arid tropical environment. |
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