selected publications
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- Crop rotation and residue management effects on carbon sequestration, nitrogen cycling and productivity of irrigated rice systems. Plant and Soil. 225:263-278. 2000
- A rapid chloroform-fumigation extraction method for measuring soil microbial biomass carbon and nitrogen in flooded rice soils. Biology and Fertility of Soils. 30:510-519. 2000
- Dynamics of soil microbial biomass and nitrogen availability in a flooded rice soil amended with different C and N sources. Biology and Fertility of Soils. 30:520-527. 2000
- Soil microbial biomass and nitrogen supply in an irrigated lowland rice soil as affected by crop rotation and residue management. Biology and Fertility of Soils. 28:71-80. 1998
- Influence of phosphorus or phosphorus-potassium fertilization on biomass and dinitrogen fixation of the stem-nodulating green-manure legume Sesbania rostrata in different marginally productive wetland rice soils. Biology and Fertility of Soils. 20:107-112. 1995
- Agronomic and economic evaluation of Sesbania rostrata green manure establishment in irrigated rice. Field Crops Research. 40:135-141. 1995
- Microbial biomass and organic matter turnover in wetland rice soils. Biology and Fertility of Soils. 19:333-342. 1995
- Nitrogen Losses and Lowland Rice Yield as Affected by Residue Nitrogen Release. Soil Science Society of America Journal. 58:1660-1665. 1994
- Parameters Affecting Residue Nitrogen Mineralization in Flooded Soils. Soil Science Society of America Journal. 58:1666-1671. 1994
- Green manuring with the root nodule forming, N2-fixing legumes Sesbania rostrata and Aeschynomene afraspera as a possibility for maintaining site productivity ('fertility') in flooded rice culture 1994
- Nitrogen uptake and recovery from urea and green manure in lowland rice measured by15N and non-isotope techniques. Plant and Soil. 148:91-99. 1993
- Sesbania rostrata and Aeschynomene afraspera effects on crop establishment of transplanted lowland rice 1992
- EFFECT OF NPK ON GROWTH AND NITROGEN FIXATION OF SESBANIA ROSTRATA AS A GREEN MANURE FOR LOWLAND RICE (ORYZA SATIVA L.). Plant and Soil. 132:149-158. 1991
- Einfluß von NPK auf die Biomasseproduktion und Stickstoffbindung der stengelknöllchenbildenden Gründüngungsleguminosen Sesbania rostrata und Aeschynomene afraspera im Naßreisanbau. Journal of Plant Nutrition and Soil Science. 153:333-339. 1990
- Growth and N2-fixation of two stem-nodulating legumes and their effect as green manure on lowland rice. Soil Biology & Biochemistry. 22:1109-1119. 1990
- Seeding vs. vegetative propagations of the stem-nodulating green manure Sesbania rostrata. Biology and Fertility of Soils. 6:279-281. 1988
- Iron Toxicity - Influence Of P-Fertilization, K-Fertilization, Ca-Fertilization And Mg-Fertilization On Rhizoflora, Redox Potential And Iron Uptake By Different Rice Varieties (Oryza-Sativa-L) 1983
- Significance Of The Nutrient Supply For The Iron-Uptake And Iron-Toxification Of Wetland Rice (Oryza-Sativa-L) 1983
- Iron toxicity as a function of soil nutrient status 1982
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