AGRICULTURAL WEEDING IN CONJUNCTION WITH HERBICIDE APPLICATION IN RICE

摘要

Ten million hectares of rice fields and ten million tons of rice grains were lost by weeds annually in China. Agricultural weeding was used by farmers, but consumed many labors. Preventive weed control method for rice seedbed and paddy field can be practiced through agricultural weeding and herbicide application. Proper land preparation, high seeding rates, good water management, transplanting tall old rice seedlings, appropriate time and rate of fertilizer application, rotating rice with a dry land crops and double cropping rice with dry land crops are effective measures. Chemical weeding is most effective and becomes important, but continuous use of herbicides without integrating other methods induced weed shift, weed resistance to herbicides and environmental problems. Agricultural weeding in conjunction with herbicide application can be the strategy for rice weed control.