tailieunhanh - Ecological Management of Agricultural Weeds

Of the many books that have been written about weed management, most have focused on the use of herbicides. This volume is different. Instead of providing information about chemical weed control technologies, the emphasis here is on weed management procedures that rely on manipulations of ecological conditions and relationships. By focusing on ecologically based methods of management, we have been able to provide in-depth treatment of subjects that most weed science books treat only briefly. | Ecological Management of Agricultural Weeds Matt Liebman Charles L. Mohler Charles p. Stave r more information - 0521560683 Ecological Management of Agricultural Weeds Concerns over environmental and human health impacts of conventional weed management practices herbicide resistance in weeds and rising costs of crop production and protection have led agricultural producers and scientists in many countries to seek strategies that take greater advantage of ecological processes. This book provides principles and practices for ecologically based weed management in a wide range of temperate and tropical farming systems. After examining weed life histories and processes determining the assembly of weed communities the authors describe how tillage and cultivation practices manipulations of soil conditions competitive cultivars crop diversification grazing livestock arthropod and microbial biocontrol agents and other factors can be used to reduce weed germination growth competitive ability reproduction and dispersal. Special attention is given to the evolutionary challenges that weeds pose and the roles that farmers can play in the development of new weed management strategies. MATT LIEBMAN is an Associate Professor in the Department of Agronomy at Iowa State University. He is the co-editor of Weed Management in AgroEcosystems Ecological Approaches 1988 . CHARLES L. MOHLER is a Senior Research Associate in the Department of Crop and Soil Science at Cornell University. He is an associate editor of the journal Weed Science. CHARLES p. STAVER is a project co-coordinator at CATIE Center for Teaching and Research in Tropical Agriculture Nicaragua where he works on integrated pest .