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Cassava farmer field schools
häftad,
2014,
Engelska,
ISBN 9789251079409
This manual is part of FAO's effort to promote sustainable intensification of smallholder crop production. It has been developed from experiences with farmer field schools in four …
Guide to the classical biological control of insect pests in planted and natural forests
häftad,
2019,
Engelska,
ISBN 9789251313350
Insect pests damage millions of hectares of forest worldwide each year. Moreover, the extent of such damage is increasing as international trade grows, facilitating the spread of …