9788177544220 - weed management: principles and practices 3rd edn di gupta, o p (5 risultati)
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Condizione: New. pp. 336 3rd Edition.
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Hardcover. Condizione: New. ISBN:9788177544220,296pp.
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Hardcover. Condizione: New. Dust Jacket Included. 3rd Edition. Contents 1 Weeds and our concern 2 Weed-crop competition 3 Propagation and dispersal of weeds 4 Weed hardiness and persistence 5 Classification of weeds and their distribution 6 Elements of prevention and control of weeds 7 Cultural and physical methods of weed contr…ol 8 Biological control of weeds 9 Weed control through herbicides 10 Herbicide selectivity 11 Common herbicides and their uses 12 Fate of herbicides in soil 13 Herbicide use in field crops and vegetables 14 Herbicide use in orchards plantations and grasslands 15 Noxious farm weeds and their control 16 Aquatic weed management Glossary of terms often used in weed science Appendices Subject indexEver since its development as a separate subject during the last over six decades or so weed science is perhaps one agricultural science that is making advances by leaps and bounds worldwide Thousands of research papers are published every year both in the identification of the new weed problems and finding their feasible solutions There are several good books on weed management available but what sets this book apart is that it focuses at equipping the students of the first course in weed science with fundamentals behind each aspect of weeds and weed management in an easy to grasp Text book manner without missing any quarter of the host of recent developments This is the key strength of the bookAn important feature of advances in weed science is that while by and large the older findings remain valid the new ones act as complements and not as substitutes to these Therefore in this new title of weed science in your hand care has been taken to maintain the rationality of the basic information on the subject while incorporating carefully selected recent research findingsThere are sixteen chapters in the book each of which is backed by a set of relevant practicals and some mind searching reference questions In the initial five chapters there is a marked thrust on bringing home to the students the factors that govern the weed occurrence in different crop situations in terms of weed species as well as weed densities There is emphasis on the insidious nature of weeds and multifarious damages imposed by them on our agricultural and aesthetic environment and their persistence in nature against all oddsThe chapters 6 to 9 reveal the various options developed by man to deal with weeds in different ecological situations like the good crop husbandry practices the use of herbicides and bio-herbicides the biological control of weeds and the employment of genetic engineering allelochemicals soil solarization and the like special activities in weed management These practices along with the preventive measures collectively form the subject matter of integrated weed management WM in the book The strong and weak points of each element of IWM have been highlighted to give students an insight into the subjectThe next set of chapters 10 to 12 are devoted to fundamental functions of more common herbicides available in India their behaviour in soils and plants their possible residues in our environment and the associated effects resulting in the new weed problems All herbicides have been identified by their common and chemical namesThe last set of chapters 13 to 16 describe in sufficient details the use of herbicides as complements to the other weed control activities in field and vegetable crops plantations and grasslands and in the aquatic environment besides in the treatment of some specific noxious weedsThere is a glossary of terms often used in the first course of weed science given at the end of the 16 chapters of the book to provide the students a handy knowledge testing and revision toolThere are nine appendices in the book which hopefully shall complement the text of different chapters Of these the appendix-1 unveils a bonanza of over 60 finely drawn sketches of common weeds selected from the weed flora reported in literature from different parts of IndiaThe book has been written on the bas. figs, tables (illustratore).
