Zoekresultaten - "Irrigation"
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Irrigation repairs seen to delay rice planting
Gepubliceerd in Philippine Daily InquirerVolledige tekst
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The effects of irrigation methods on the yield, water requirement and nitrogen utilization of lowland rice [microform]
Gepubliceerd in 1977Visual Material -
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DPWH to help fix irrigation systems. IN Visayas News
Gepubliceerd in Manila BulletinVolledige tekst
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