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Soil fertility and fertilizers par Tisdale, Samuel L.

Release of potassium and magnesium from some Philippine soils par Tantidhanapat, Prapat 1948-

Variability of rice yield response to fertilization in a Santa Rita series in Iloilo in relation to some soil chemical properties par Ali, Jakhro Anwar 1945-

Land reclamation by faecal sludge application par De Sales, Louernie Fernandez

Fertility studies of scraped soils in the land consolidation pilot project, Talavera, Nueva Ecija par Singh, Virenda Pal 1951-

Field fertilizer experiment and plant tissue analyses as tools in assessing the fertility level of a soil for garlic par Mardicas, Estrellita Bacnat 1952-

Geotherapy innovative methods of soil fertility restoration, carbon sequestration, and reversing CO2 increase

Available for University of the Philippines Diliman College of Engineering via CRCnetBASE. Click here to access
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The Philippines recommends for soil fertility management

Soil fertility management in Sub-Saharan Africa par Donovan, Graeme W.

Conserving soil moisture and fertility in the warm seasonally dry topics