Agricultural
engineering in developmentAgricultural
engineering in development
Post-harvest operations and management of foodgrains
by M. de Lucia and D. Assennato FAO consultants
FAO AGRICULTURAL SERVICES BULLETIN No. 93
Food and Agriculture Organization of the United Nations
The designations employed and the presentation of material in this publication do not imply the expression of any opinion what so ever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
M-17
ISBN 92-5-103108-8
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 or otherwise, without the prior permission of the copyright owner. Applications for such permission, with a statement of the purpose and extent of the reproduction, should be addressed to the Director, Publications Division, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00100 Rome, Italy.
(c) FAO 1994
Grain and post-harvest systems
Definition
Post-harvest system and losses
Losses in weight
Losses in quality
Economic losses
Definition
Moisture content
Relative humidity
Air-grain equilibrium
Drying process
Natural drying
Artificial drying
Other drying methods
Definition
Influences of environmental factors
Agents causing deterioration of stored grain
Storage methods
Definition
Weighing
Sampling
Determining the percentage of impurities
Measuring moisture content
Temperature control
Grain cleaning and insecticide treatments
Definition
Outdoor storage
Warehouses and storehouses
Equipment
Bag-storage management
Definition
Low-capacity silos for farm storage
High-capacity silos
Equipping bulk-storage centres
Bulk storage management
Definition
Sales and product quality
Quality standards
Grain packaging
Definition
Traditional transport
Road transport
Other means of transport