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Estimation of N-2 fixation of soybean by comparison of different n-15 labeling methods by Chiu, Chih-Yu, Watanabe, Iwao, Yoshida, Tomio

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Decomposition of Rice Residues in Tropical Soils. IV. the Effect of Rice Straw on Nitrogen Fixation By Heterotrophic Bacteria in Some Philippine Soils by Yoneyama, Tadakatsu, Lee, Kuk-Ki, Yoshida, Tomio

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Decomposition of rice residues in tropical soils. II. Immobilization of soil and fertilizer nitrogen by intact rice residue in soil by Yoneyama, Tadakatsu, Yoshida, Tomio

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BHC and DDT Residues of Some Rice Crops and Soils in the Philippines by Del Rosario, Dafrosa A., Yoshida, Tomio

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Effect of Organic Matter Application and Water Regimes on the Transformation of Fertilizer Nitrogen in a Philippine Soil by Yoshida, Tomio, Padre, Benjamin C.

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Atmospheric Nitrogen Fixation By Photosynthetic Microorganisms in a Submerged Philippine Soil by Yoshida, Tomio, Roncal, Rosabel A., Bautista, Ellen M.

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