साधन चिह्नित: Netherlands
2 items found (Showing 1 - 2)
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20-12-2007 Pest management Ecological pest management Traditional ecological management of late blight in potato The theory of trophobiosis in pest and disease control Plant clinics for healthy crops Rats - an ecologically-based approach for managing a global problem Changing the strategies of Farmer Field...
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01-01-1990 This report examines seed potato systems in developed countries using the case-studies of three important seed potato-producing countries; the Netherlands, Canada and Great Britain. It compares different systems with an emphasis on the nature of the institutional structure. Seed potato production...