8Delgado A. Opening up for participation in agro-biodiversity conservation: the Expert-Lay interplay in a Brazilian social movement[J]. Journal of Agricultural and Environmental Ethics,2008,21(6): 559-577.
9Smith R G,Mortensen D A,Ryan M R. A new hypothesis for the functional role of diversity in mediating resource pools and weed-crop competition in agroecosystems[J]. Weed Research,2010,50(1): 37-48.
10Thomas A G,Derksen D A,Blackshaw R E,et al. A multistudy approach to understanding weed population shifts in medium-to long-term tillage systems[J]. Weed Science,2004,52(5): 874-880.
