selected publications
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article
- Phenol Accumulation in a Young Humic Fraction following Anaerobic Decomposition of Rice Crop Residues. Soil Science Society of America Journal. 73:943-951. 2009
- Inhibition of nitrogen mineralization in young humic fractions by anaerobic decomposition of rice crop residues. European Journal of Soil Science. 58:270-281. 2007
- Multinuclear Magnetic Resonance Analysis of Two Humic Acid Fractions from Lowland Rice Soils. Journal of Environmental Quality. 31:421-430. 2002
- Prediction of crop nitrogen uptake and grain yield by soil nitrogen availability tests for irrigated lowland rice. Correlations between seasons for grain yield, plant nitrogen uptake, soil properties and soil availablity indices 2002
- Why phenolic acids are unlikely primary allelochemicals in rice.. Journal of Chemical Ecology. 28:229-242. 2002
- Crop rotation and residue management effects on carbon sequestration, nitrogen cycling and productivity of irrigated rice systems. Plant and Soil. 225:263-278. 2000
- Analysis of phosphorus in two humic acid fractions of intensively cropped lowland rice soils by 31P-NMR.. European Journal of Soil Science. 51:391-402. 2000
- Decrease in humification of organic matter with intensified lowland rice cropping: a wet chemical and spectroscopic investigation.. Soil Science Society of America Journal. 64:1337-1347. 2000
- Legume Decomposition and Nitrogen Release When Applied as Green Manures to Tropical Vegetable Production Systems. Agronomy Journal. 92:253-260. 2000
- Accumulation of heterocyclic nitrogen in humified organic matter: a N-15-NMR study of lowland rice soils. European Journal of Soil Science. 51:379-389. 2000
- On-farm soil N supply and N nutrition in the rice-wheat system of Nepal and Bangladesh. Field Crops Research. 64:273-286. 1999
- Internal nutrient efficiencies of irrigated lowland rice in tropical and subtropical Asia. Field Crops Research. 63:113-138. 1999
- Interpreting fertilizer use efficiency in relation to soil nutrient-supplying capacity, factor productivity, and agronomic efficiency. Nutrient Cycling in Agroecosystems. 53:35-41. 1999
- Organic matter in double-cropped lowland rice soils: Chemical and spectroscopic properties. SOIL SCIENCE. 164:633-649. 1999
- Conserved chemical properties of young humic acid fractions in tropical lowland soil under intensive irrigated rice cropping. European Journal of Soil Science. 49:337-349. 1998
- Changes in chemical properties of organic matter with intensified rice cropping in tropical lowland soil. European Journal of Soil Science. 47:293-303. 1996
- Soil organic matter and the indigenous nitrogen supply of intensive irrigated rice systems in the tropics. Plant and Soil. 182:267-278. 1996
- Reduction of Potassium Fixation by Two Humic Acid Fractions in Vermiculitic Soils. Soil Science Society of America Journal. 59:1250-1258. 1995
- Characterization of two humic acid fractions from a calcareous vermiculitic soil: implications for the humification process. Geoderma. 65:195-208. 1995
- Kinetics of potassium fixation in vermiculitic soils under different moisture regimes. Soil Science Society of America Journal. 59:423-429. 1995
- Microbial biomass and organic matter turnover in wetland rice soils. Biology and Fertility of Soils. 19:333-342. 1995
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document
- ACCUMULATION OF LIGNIN RESIDUES IN ORGANIC MATTER FRACTIONS OF LOWLAND RICE SOILS: A PYROLYSIS-GC-MS STUDY 2002
- Long-term submergence affects the chemical nature of soil organic matter in tropical lowland rice soils.. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 93-GEOC. 1996
- Yield decline and the nitrogen economy of long-term experiments on continuous, irrigated rice systems in the tropics 1995
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review
- Opportunities for increased nitrogen-use efficiency from improved resource management in irrigated rice systems. Field Crops Research. 7-39. 1998