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In much of the world without artifi cial irrigation, the agricultural year can be divided into a crop production period followed by a post-harvest period. Crop production lasts for three months or more but the post-harvest period may stretch from the end of one growing season to the next, often at least six months. If there is only one rainy season then it may last for as long as ten months. In the European Union, intervention storage may last for several years. When one considers the pre- and post-harvest phases of crops, technical information on crop production far outweighs that available on crop harvesting, storage, processing and marketing. Every country has undergraduate and. | Crop Post-Harvest Science and Technology Volume 1 Principles and Practice Edited by Peter Golob Graham Farrell and John E. Orchard Blackwell Science Natural Resources Institute 2002 Blackwell Science Ltd a Blackwell Publishing Company Editorial Offices Osney Mead Oxford OX2 0EL UK Tel 44 0 1865 206206 Blackwell Science Inc. 350 Main Street Malden MA 02148-5018 USA Tel 1 781 388 8250 Iowa State Press a Blackwell Publishing Company 2121 State Avenue Ames Iowa 50014-8300 USA Tel 1 515 292 0140 Blackwell Publishing Asia Pty 550 Swanston Street Carlton South Melbourne Victoria 3053 Australia Tel 61 0 3 9347 0300 Blackwell Wissenschafts Verlag Kurfurstendamm 57 10707 Berlin Germany Tel 49 0 30 32 79 060 The right of the Author to be identified as the Author of this Work has been asserted in accordance with the Copyright Designs and Patents Act 1988. All rights reserved. No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise except as permitted by the UK Copyright Designs and Patents Act 1988 without the prior permission of the publisher. First published 2002 by Blackwell Science Ltd Library of Congress Cataloging-in-Publication Data is available ISBN 0-632-05723-8 A catalogue record for this title is available from the British Library Set in 9 11.5 pt Times by Sparks Computer Solutions Ltd Oxford http www.sparks.co.uk Printed and bound in Great Britain by Ashford Colour Press Ltd Gosport UK For further information on Blackwell Science visit our website www.blackwell-science.com This series of volumes is dedicated to the memory of Dr Philip C. Spensley Director of the Tropical Products Institute 1966-1982 for his leadership in a period of great expansion of post-harvest research and .