Carbon efficiency of double-rice production system in Hunan Province, China. Analysis of ecological and environmental effects of coordination of farming and animal husbandry of “rice-ryegrass-goose” Output response to fertilization development in rice cropping Effects of long-term fertilization on spring season weed community in winter fallow paddy field in red soil area under double-rice cropping system Soil enzyme activity in spring potato fields under different mulching practices in double rice cropping area CONSTITUTION OF THE AUTUMN POPULATION OF RICE WATER WEEVILS IN DOUBLE CROPPING RICE AREA OF ZHEJIANG PROVINCE, CHINA Comparison of Yield and Resource Utilization Efficiency among Different Maize and Rice Cropping Systems in Middle Reaches of Yangtze River Effects of rice cropping systems on the restoration of aquaculture pond eutrophication and its prospective application ON THE FORMATION OF DESTRUCTIVE POPULATION OF RICE WATER WEEVIL IN DOUBLE RICE CROPPING AREA OF ZHEJIANG PROVINCE,CHINA