History 2 Agricultural Economics 1 Agricultural development 1 Agricultural research 1 Agricultural systems 1 Aid, (New March 2000) 1 Elaeis 1 Extension 1 Extension and Advisory Work 1 Farming systems 1 Farming systems research 1 Field Crops, (New March 2000) 1 Fungal diseases 1 Fungi 1 Ganoderma 1 Ganoderma diseases of plants 1 Ganodermataceae 1 Internationaler Vergleich 1 Journalism 1 Journalist 1 Journalister 1 Journalistik 1 Journalists 1 Oil palms 1 Organization of research 1 Pathogen, Pest, Parasite and Weed Management (General) 1 Plant disease control 1 Plant diseases 1 Plant pathogenic fungi 1 Plant pathogens 1