selected publications
-
article
- ESTIMATION OF N-2 FIXATION IN SOYBEAN AND COWPEA BY USING SOIL RESIDUAL N-15. Soil Science and Plant Nutrition. 36:375-381. 1990
- ESTIMATION OF N-2 FIXATION OF SOYBEAN BY COMPARISON OF DIFFERENT N-15 LABELING METHODS. Soil Science and Plant Nutrition. 36:383-388. 1990
- Distribution, and uptake by rice plants of15N-labeled ammonium applied in mudballs in paddy soils 1978
- Nitrogen fixation throughout growth, and varietal differences in nitrogen fixation by the rhizosphere of rice planted in pots. Plant and Soil. 48:613-619. 1977
- Decomposition of rice residues in tropical soils: IV. The effect of rice straw on nitrogen fixation by heterotrophic bacteria in some Philippine soils. Soil Science and Plant Nutrition. 23:287-295. 1977
- Field technique using the acetylene reduction method to assay nitrogenase activity and its association with the rice rhizosphere. Plant and Soil. 47:519-526. 1977
- Decomposition of rice residue in tropical soils. III. Nitrogen mineralization and immobilization of rice residue during its decomposition in soil. Soil Science and Plant Nutrition. 23:175-183. 1977
- Ammonia volatilization from a flooded tropical soil. Plant and Soil. 46:521-531. 1977
- DECOMPOSITION OF RICE RESIDUE IN TROPICAL SOILS : I. Nitrogen Uptake by Rice Plants from Straw Incorporated, Fertilizer (Ammonium Sulfate) and Soil. Soil Science and Plant Nutrition. 23:33-40. 1977
- DECOMPOSITION OF RICE RESIDUE IN TROPICAL SOILS : II. Immobilization of Soil and Fertilizer Nitrogen by Intact Rice Residue in Soil. Soil Science and Plant Nutrition. 23:41-48. 1977
- An assay technique of measurement of nitrogenase activity in root zone of rice for varietal screening by the acetylene reduction method. Plant and Soil. 46:127-134. 1977
- BHC and DDT residues of some rice crops and soils in the Philippines. Soil Science and Plant Nutrition. 22:81-87. 1976
- Degradation of 2, 4-D, 2, 4, 5-T, and picloram in two Philippine soils. Soil Science and Plant Nutrition. 21:397-404. 1975
- Pesticide residues in upland rice soils 1975
- Biological nitrogen fixation in the biosphere with emphasis on nitrogen fixation in the plant rhizosphere 1974
- Role of soil microorganisms in the insecticide residues of rice soils 1971
- Organochlorine pesticide degradation in rice soil 1969
-
document
- Biological source of nitrogen in natural ecosystem and crop production 1974
- Microbial nitrogen transformation in rice fields 1973
- Role of microorganisma in soil fertility and plant growth (I) 1971
- Role of microorganisma in soil fertility and plant growth (II) 1971
- Microorganism-plant root relationship 1969
- Paddy soilmicrobiology