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Performance of sweetpotato (Ipomoea batatas [L] Lam.) varieties grown at different tillage systems
I publikationen Philippine Journal of Science (2025)Artikel -
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Tillage techniques and planting methods for lowland rice [microform]
Publicerad 1977Visual Material -
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Design, construction, and testing of a cable system for tillage operation in wetland rice paddies [microform].
Publicerad 1977Visual Material -
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