Occurrence trend and management strategies of weeds in paddy fields under simplified and labor-saving rice cultivation
With the application and extension of simplified and labor-saving cultivation techniques for rice,the population succession of weeds accelerated in the main rice producing areas including Northeast,Northwest rice region and so on,the noxious weeds such as Echinochloa spp.,Leptochloa chinensis,and Digitaria sanguinalis occurred frequently,and the resistance levels were increased rapidly.The characteristics,development trends and control methods of weeds in paddy fields under simplified and labor-saving rice cultivation such as direct seeding,machine-transplanting,and seedling throwing were summarized in this review.The purpose was to provide the scientific references for the development of reasonable and efficient comprehensive control techniques against weeds,the plan of herbicide decrement and synergism,and for delaying the occurrence and development of weed resistance.
simplified and labor-saving rice cultivationdirect seedingmachine-transplantingseedling throwingweedcontrol
万方数据
维普
