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Year 2010 Remove constraint 2010: 2010 Subjects quantitative analysis Remove constraint quantitative analysis: quantitative analysis Subjects crop-weed competition Remove constraint crop-weed competition: crop-weed competition

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1. 13C Discrimination: A Stable Isotope Method to Quantify Root Interactions between C3 Rice (Oryza sativa) and C4 Barnyardgrass (Echinochloa crus-galli) in Flooded Fields

Description:: Includes references
Author:: Gealy, David R. , Fischer, Albert J.
Subject:: Oryza sativa , rice , Echinochloa crus-galli , crop-weed competition , roots , quantitative analysis , carbon , isotope labeling , radiolabeling , flooded conditions , C4 photosynthesis , C3 photosynthesis , weed biology
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2010

2. Management Filters and Species Traits: Weed Community Assembly in Long-Term Organic and Conventional Systems

Description:: Includes references
Author:: Ryan, Matthew R. , Smith, Richard G. , Mirsky, Steven B. , Mortensen, David A. , Seidel, Rita
Subject:: Avena sativa , oats , Triticum aestivum , wheat , Glycine max , soybeans , Zea mays , corn , crop production , organic production , crop management , composted manure , crop-weed competition , weed biology , plant growth , buried seeds , seed germination , quantitative analysis , plant ecology , plant communities , species diversity , weed control , tillage , sowing date , seedling emergence , soil fertility , case studies , long term experiments , Pennsylvania
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2010