Phosphorus in action biological processes in soil phosphorus cycling

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Environmental fate of macro-elements in upland soils under different land uses in Rizal di Urriza, Gavino Isagani P.

Mineralization of organic phosphorus in a subtropical freshwater wetland di Oña, Teresita Chua

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The effect of phosphorus nutrition of seedlings on growth and yield of rice [microform] di Shakir, Abdulwahab Abdulrazak

Ecological study of the Bontoc rice paddy system a case of human-environment interaction di Omengan, Elizabeth A., Sajise, Percy E.

Nitrogen and phosphorus cycles in a Bontoc rice paddy system di Omengan, Elizabeth A.

Basic flow of phosphorus brackishwater fishponds di Baldevarona, Rodolfo B. 1944-

Availability of inorganic phosphorus fractions and organic phosphorus accumulation in rice soils [microform]. di Singlachar, Mandayam Ammanji 1940-

The phosphate supply pattern of some Philippine soils with high and low phosphorus contents [microform]. di Malik, Muhammad Bashir 1935-

Sources and rates od fertilizer phosphorus for flooded rice in Buenavista clay [microform] di Duangputra, Piya 1939-