figs, tables, plates (illustrateur). Contents Preface Acknowledgements 1 Aquatic weeds a global problem 2 Economic importance of aquatic weeds 3 Utility of some important aquatic weeds 4 Growth and development of some aquatic weeds 5 Need for further research on aquatic weeds 6 Bibliography AppendicesWater one of the most important natural resources is often adversely affected by aquatic weeds resulting in critical problems in agriculture navigation irrigation pisciculture and public health The menace of water weeds is reaching alarming proportions in many parts of the world The problem is global but more pronounced in tropical and subtropical zone where warm weather supports profuse growth of aquatic plants In India large irrigation projects have been reported to be adversely affected by profusely growing aquatic weedsThe scientists and technologists therefore gradually changed their destructive attitude towards these apparently troublesome plants and tried to turn them to productive use Limited research so far being carried out in this line has yielded encouraging results It has been found that aquatic weeds constitute a crop of great potential value It is a highly productive crop requiring no tillage fertilizer seed or cultivation The plants have been found to have potential for use as animal feed human food soil additives and fuelThis monograph is a humble attempt to summarize to some extent the information gathered so far by the international scientists on aquatic weeds and their economic importance jacket 104 pp. N� de r�f. du vendeur 90790

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