Weed Management of Horticultural Crops

Weed Management of Horticultural Crops
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Weed Management of Horticultural Crops

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Publisher: Agrobios Publications
ISBN: 9788177540321
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PREFACE Though information on the use of herbicides on horticultural crops, has been published to disseminate the knowledge through various scientific journals, booklets, etc, but they have not been collated for the benefit of the students, teachers and research workers of Botany and Agriculture and also by and large for the benefit of the farming community. This book "Weed Management of Horticultural Crops" consists of seven chapters dealing with the fundamental aspects and field applications on various horticultural crops. The book covers the work done on the effect of herbicides on several horticultural crops with more bias towards the research work carried out in India, and supported by adequate tables. This book furnishes information on the mode of action of herbicides. It encompasses The effect of herbicides on important groups of horticultural crops. We hope that the book will be useful to the students, research workers, teachers, farmers and extension workers alike. We express our sincere thanks and gratitude to Dr. V. Rajagopalan ViceChancellor, Tamil Nadu Agricultural University, Coimbatore for not only his readiness in according permission to undertake this work but also for his kind encouragement and for kindly agreeing to give a foreword to this publication. Our grateful acknowledgement is made to M s Agro Botanical Publishers India for having printed the book in record time. Special thanks are due to Dr. S. S. Purohit for help in various ways and to Miss K. Manoranjitham for having neatly typed the manuscript in time. K.G. Shanmugavelu R. Aravindan A. Rajagopal
CONTENTS 1 Weeds, Crops and Diseases ....................................................... 1 Introduction .................................................................................................1 Damage Caused by Weeds ..........................................................................1 Reduction in Crop Yield ..........................................................................1 Increase in the Cost of Cultivation .........................................................2 Reduction in the Quality of Crop Produce.............................................2 Weeds Harbour Insect Pests and Disease................................................2 Weeds Check the Flow of Water in Irrigation Channels .......................2 Harmful Weed Secretions ........................................................................2 Characteristics of Weeds..............................................................................3 Crop Weed Competition.............................................................................5
2 Weed Management .................................................................... 7 Introduction .................................................................................................7 Methods of Weed Control ..........................................................................8 Preventive Method ...................................................................................8 Cultural Method .......................................................................................8 Fire ................................................................................................. 9 Biological Control ....................................................................................9 Smothering ...................................................................................... 9 Chemical Weed Control ..........................................................................9 Classification of Herbicides ......................................................................10 Selective Herbicides................................................................................10 Non-selective Herbicides .......................................................................10