Suchergebnisse - "Soil conditioners"
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What's new in agriculture. IN Agri-talk [column]
Veröffentlicht in Philippine Panorama (2001)Artikel -
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Inventions that actually aid farmers. IN Commentary [column]
Veröffentlicht in Philippine Daily Inquirer (2013)Artikel -
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Utilization of ricehull and sawdust as components of vegetable growing media [microform]
Veröffentlicht 1977Visual Material