This book may no longer be available in print.
				
			This book looks at the ways in which the productivity of food crops in the semi-arid tropics may be increased, and yields safeguarded, by both genetic and agronomic means.
2 Copies.
Publication Details
- Published: 1999
 - Publisher: Macmillan
 - ISBN-10: 0333598318
 - ISBN-13: 978-0333598313
 - Dewey Decimal: 635.952
 - ECHO Library: 635.952 ASH