Elucidating the apparent maize tolerance to weed competition in long?term organically managed systems
نویسندگان
چکیده
M R RYAN*, D A MORTENSEN*, L BASTIAANS , J R TEASDALE , S B MIRSKY , W S CURRAN*, R SEIDEL§, D O WILSON§ & P R HEPPERLY§ *Department of Crop and Soil Science, The Pennsylvania State University, University Park, PA, USA, Crop and Weed Ecology, Wageningen University, Wageningen, the Netherlands, Sustainable Agricultural Systems Laboratory, USDA-ARS, Beltsville, MD, USA, and §King’s Agriseeds Inc., Ronks, PA, USA
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