Impact of Tillage and Crop Residue Management on the Weed Community and Wheat Yield in a Wheat–Maize Double Cropping System

Weeds are often harmful to crop growth due the competition for space and resources. A field experiment containing four treatments with three replications in a complete randomized design was conducted at Yucheng Comprehensive Experiment Station, Chinese Academy of Sciences since 2008 assess impact shifting from conventional tillage no-till residue management on weeds wheat production North China Plain. We found that both aboveground weed density species richness were higher under continuous (NT) than (CT) regrowth stem elongation stage growth. On other hand, flowering filling decreased mulching. The soil seed bank removal significantly retention. Besides, either mulching or incorporating into increased yield compared regardless management. In conclusion, retention could decrease inhibit broadleaf by layer. Moreover, improve yield.