aquatic weed management text book de o p gupta (1 résultats)

46 figs. (illustrateur). Contents Preface. 1. Aquatic weeds and our concern. 2. The survey of aquatic weed problems. 3. Classification of aquatic weeds. 4. Principles of aquatic weed control. 5. Physical control and utilization f aquatic weeds. 6. Herbicidal control. 7. Biological control. 8. Other methods of control. 9. Weed management in fish ponds and duck marshes. 10. Weed control in irrigation drainage and flood control systems. 11. Special aquatic weeds their control. Selected bibliography. Glossary of terms. The first edition of this book published in 1979 under the name aquatic weeds was a good success but during the last eight years several thousands of new references have been added in literature and it definitely required updating. This second edition is based on relevant literature available upto 1985. Almost all aquatic weeds mentioned in the edition have been sketched and modern plant classification has been followed in describing these weeds. The problems created by aquatic weeds in different situations in the country have been illustrated state wise. Besides a general view of global aquatic weed problems has also been included. Principles and methods of aquatic weed control have been dealt with in five different chapters. The modern research techniques and practical application aspects for each method of control including physical chemical biological and design control have been discussed in adequate details. The appendices include a detailed list of source of latest information on aquatic weeds and a comprehensive glossary of terms used in aquatic weed science besides the several ready reckoners. (jacket) 300 pp.