Effect of protective cultivation on weed community composition and species diversity

Four weed community groups were divided in 31 sites, one of which was obtained with almost all soybean (com) stubble rape field sites dominated with Galium apalium, and three gro.

Digitaria　sanguinalis+Acalypha　australis+Cephalanoplos　segetum+Setaria　viridis weed　community　distributed　in　the　cotton　fields　with　the　successive　.

Effects of wheat rotation and monocropping system on weed populations in wheat fields;

Effects of corn rotation and continuous cropping system on weed population;

Comparing with conventional manual transplanting mode,the other five cultivation modes had their own dominant species in the potential weed community,and thereby,different labor-saving rice cultivation modes should be applied by turns to control the potential weed community in paddy fields effectively and persistently.