នេះ Book មិន​មាន​ក្នុង​ភាសា​របស់​អ្នក, មើល​ក្នុង: English (en),
ឬ​ប្រើ​កម្មវិធី​បកប្រែ Google:  
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