selected publications
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article
- Soil aeration and relationship to inorganic nitrogen during aerobic cultivation of irrigated rice on a consolidated land parcel. Soil & Tillage Research. 202:104647. 2020
- Rice yield and relationships to soil properties for production using overhead sprinkler irrigation without soil submergence. Geoderma. 352:277-288. 2019
- Field-specific nutrient management using Rice Crop Manager decision support tool in Odisha, India. Field Crops Research. 241:107578. 2019
- Site-specific nutrient management for rice in the Philippines: Calculation of field-specific fertilizer requirements by Rice Crop Manager. Field Crops Research. 239:56-70. 2019
- Web-based tool for calculating field-specific nutrient management for rice in India.. Nutrient Cycling in Agroecosystems. 113:21-33. 2019
- Contribution of fallow periods between rice crops to seasonal GHG emissions: effect of water and tillage management. Soil Science and Plant Nutrition. 64:200-209. 2018
- Straw incorporated after mechanized harvesting of irrigated rice affects net emissions of CH4 and CO2 based on eddy covariance measurements. Field Crops Research. 184:162-175. 2015
- Root and shoot traits for rice varieties with higher grain yield and higher nitrogen use efficiency at lower nitrogen rates application. Field Crops Research. 175:47-55. 2015
- Methane and nitrous oxide emissions from flooded rice fields as affected by water and straw management between rice crops. Geoderma. 235:355-362. 2014
- Energy efficiency of rice production in farmers' fields and intensively cropped research fields in the Philippines. Field Crops Research. 168:8-18. 2014
- Land management between crops affects soil inorganic nitrogen balance in a tropical rice system. Nutrient Cycling in Agroecosystems. 100:315-332. 2014
- Actual evapotranspiration and dual crop coefficients for dry-seeded rice and hybrid maize grown with overhead sprinkler irrigation. Agricultural Water Management. 136:1-12. 2014
- Measuring methane flux from irrigated rice fields by eddy covariance method using open-path gas analyzer. Field Crops Research. 160:12-21. 2014
- Zinc Fertilizer Test Kit for Semi-Quantitative Verification of Fertilizer Quality. International plant nutrition colloquium. 10. 37:1237-1254. 2014
- The Rice Crop Manager: an ICT-based, agro-advisory service 2014
- Carbon uptake and water productivity for dry-seeded rice and hybrid maize grown with overhead sprinkler irrigation. Field Crops Research. 146:51-65. 2013
- Potassium Fertilization in Rice-Wheat System across Northern India: Crop Performance and Soil Nutrients. Agronomy Journal. 105:471-481. 2013
- Modelling the role of algae in rice crop nutrition and soil organic carbon maintenance. European Journal of Agronomy. 39:35-43. 2012
- Rice in cropping systems - modelling transitions between flooded and non-flooded soil environments.. European Journal of Agronomy. 39:9-24. 2012
- Effects of long-term use of sodic water irrigation, amendments and crop residues on soil properties and crop yields in rice–wheat cropping system in a calcareous soil. Field Crops Research. 121:363-372. 2011
- Improving Nitrogen Fertilization in Rice by Site-Specific N Management 2011
- Rice-maize systems in Asia : current situation and potential 2011
- Field-specific potassium and phosphorus balances and fertilizer requirements for irrigated rice-based cropping systems. Plant and Soil. 335:35-64. 2010
- Agronomic performance of late-season rice under different tillage, straw, and nitrogen management. Field Crops Research. 115:79-84. 2010
- Simultaneous minimization of nitrous oxide and methane emission from rice paddy soils is improbable due to redox potential changes with depth in a greenhouse experiment without plants. Geoderma. 149:45-53. 2009
- Soil Carbon and Nitrogen Changes in Long‐Term Continuous Lowland Rice Cropping. Soil Science Society of America Journal. 72:798-807. 2008
- Faster residue decomposition of brittle stem rice mutant due to finer breakage during threshing. Soil & Tillage Research. 98:211-216. 2008
- Nitrogen Supply in Rice‐Based Cropping Systems as Affected by Crop Residue Management. Soil Science Society of America Journal. 72:514-523. 2008
- Organic acid accumulation under flooded soil conditions in relation to the incorporation of wheat and rice straws with different C:N ratios. Soil Science and Plant Nutrition. 54:46-56. 2008
- Determination of optimal nitrogen rate for rice varieties using a chlorophyll meter. Field Crops Research. 105:70-80. 2008
- Balancing fertilizer use and profit in Asia's irrigated rice systems 2008
- Effects of different nitrogen application on the yield and nitrogen use efficieny in hybrid rice 2008
- Rice varietal difference in sheath blight development and its association with yield loss at different levels of N fertilization. Field Crops Research. 102:219-227. 2007
- Opportunities for yield increases and environmental benefits through site-specific nutrient management in rice systems of Zhejiang province, China. Agricultural Systems. 94:801-806. 2007
- Farmer participatory testing of standard and modified site-specific nitrogen management for irrigated rice in China. Agricultural Systems. 94:331-340. 2007
- Environmental impact and economic benefits of site-specific nutrient management (SSNM) in irrigated rice systems. Agricultural Systems. 93:1-24. 2007
- Effect of real-time and site-specific nitrogen management on rice yield and quality 2007
- Yield gaps and nutrient balances in intensive, rice-based cropping systems on degraded soils in the Red River Delta of Vietnam. Field Crops Research. 98:127-140. 2006
- Faster anaerobic decomposition of a brittle straw rice mutant: Implications for residue management. Soil Biology & Biochemistry. 38:1880-1892. 2006
- Nutrient management for increased productivity of rice–wheat cropping system in Bangladesh. Field Crops Research. 96:374-386. 2006
- Strategies for overcoming low agronomic nitrogen use efficiency in irrigated rice systems in China. Field Crops Research. 96:37-47. 2006
- Effect of rice straw incorporation on concentration of organic acids and available phosphorus in soil under different water regimes 2006
- Effects of different tillage system on the root properties and the yield in hybrid rice 2006
- Soil solution sampling for-organic acids in rice paddy soils. Soil Science Society of America Journal. 70:48-56. 2006
- Measuring nitrogen fixation by Sesbania sesban planted fallows using 15N tracer technique in Kenya. Agroforestry Systems. 65:67-79. 2005
- Leaf Color Chart for Managing Nitrogen Fertilizer in Lowland Rice in Bangladesh. Agronomy Journal. 97:949-959. 2005
- Rice establishment method affects nitrogen use and crop production of rice-legume systems in drought-prone eastern India. Field Crops Research. 92:17-33. 2005
- New leaf color chart for effective nitrogen management in rice 2005
- Selection of interspecific hybrids (O. sativa x O. glaberrima) or lowland NERICAs and intraspecifics adapted to rainfed lowland growing conditions 2005
- Site-specific nutrient management and the sustainability of phosphorus and potassium supply in irrigated rice soils of Asia 2005
- Competition in tree row agroforestry systems. 3. Soil water distribution and dynamics. Plant and Soil. 264:129-139. 2004
- Subsoil Nitrogen Capture in Mixed Legume Stands as Assessed by Deep Nitrogen‐15 Placement. Soil Science Society of America Journal. 67:573-582. 2003
- Subsoil nitrogen capture in mixed legume stands as assessed by deep nitrogen-15 placement. Soil Science Society of America Journal. 67:573-582. 2003
- Using Leaf Color Charts to Estimate Leaf Nitrogen Status of Rice. Agronomy Journal. 95:212-217. 2003
- Short fallows of Tithonia diversifolia and Crotalaria grahamiana for soil fertility improvement in western Kenya. Agroforestry Systems. 55:181-194. 2002
- Changes in phosphorus concentrations and pH in the rhizosphere of some agroforestry and crop species. Plant and Soil. 246:65-73. 2002
- Competition in tree row agroforestry systems. 2. Distribution, dynamics and uptake of soil inorganic N. Plant and Soil. 247:177-187. 2002
- Research strategy in improving fertilizer-nitrogen use efficiency of irrigated rice in China 2002
- Short-term patterns of carbon and nitrogen mineralisation in a fallow field amended with green manures from agroforestry trees. Biology and Fertility of Soils. 36:18-25. 2002
- Utilisation of soil organic P by agroforestry and crop species in the field, western Kenya. Plant and Soil. 246:53-63. 2002
- Dry-season sesbania fallows and their influence on nitrogen availability and maize yields in Malawi 2001
- Inorganic soil nitrogen distribution in relation to soil properties in smallholder maize fields in the Kenya highlands. Geoderma. 101:87-103. 2001
- Tithonia diversifolia: variations in leaf nutrient concentration and implications for biomass transfer 2001
- Competition in tree row agroforestry systems. 1. Distribution and dynamics of fine root length and biomass. Plant and Soil. 227:149-161. 2000
- Land use affects the distribution of soil inorganic nitrogen in smallholder production systems in Kenya. Biology and Fertility of Soils. 31:348-355. 2000
- Tithonia diversifolia as a green manure for soil fertility improvement in western Kenya: a review 2000
- Nutrient uptake and growth of young trees in a P-deficient soil: Tree species and phosphorus effects. Forest Ecology and Management. 122:231-241. 1999
- Sieve size effects on root length and biomass measurements of maize (Zea mays) and Grevillea robusta. Plant and Soil. 207:183-193. 1999
- Relating Preseason Soil Nitrogen to Maize Yield in Tree Legume‐Maize Rotations. Soil Science Society of America Journal. 62:1604-1609. 1998
- Recycling in situ of Legume-Fixed and Soil Nitrogen in Tropical Lowland Rice. Agronomy Journal. 90:429-437. 1998
- Root length and nitrate under Sesbania sesban: Vertical and horizontal distribution and variability. Agroforestry Systems. 42:265-282. 1998
- Soil phosphorus fractions and adsorption as affected by organic and inorganic sources. Plant and Soil. 198:159-168. 1998
- Vertical distribution of roots and soil nitrate: Tree species and phosphorus effects. Soil Science Society of America Journal. 62:280-286. 1998
- Agronomic and economic evaluation of organic and inorganic sources of phosphorus in western Kenya. Agronomy Journal. 89:597-604. 1997
- Light fraction soil organic matter and available nitrogen following trees and maize. Soil Science Society of America Journal. 61:826-831. 1997
- Legumes as Nitrate Catch Crops During the Dry-to-Wet Transition in Lowland Rice Cropping Systems. Agronomy Journal. 86:267-273. 1994
- Prediction of nitrogen availability and rice yield in lowland soils : nitrogen mineralization parameters. Plant and Soil. 160:131-137. 1994
- Nitrogen losses in puddled soils as affected by timing of water deficit and nitrogen fertilization. Plant and Soil. 157:197-206. 1993
- Nitrate Dynamics during the Aerobic Soil Phase in Lowland Rice‐Based Cropping Systems. Soil Science Society of America Journal. 57:1526-1532. 1993
- Fallow and Sesbania effects on response of transplanted lowland rice to urea. Agronomy Journal. 85:801-808. 1993
- Quantification of denitrification in flooded soils as affected by rice establishment method. Soil Biology & Biochemistry. 25:843-848. 1993
- Fallow and Sesbania effects on soil nitrogen dynamics in lowland rice-based cropping systems. Agronomy Journal. 85:316-321. 1993
- Trip report, Bangladesh Rice Research Institute, 17-20 April 1993, Ubon Rice Research Center, Thailand, 21-23 April 1993 1993
- Nitrogen contribution of cowpea green manure and residue to upland rice. Plant and Soil. 142:53-61. 1992
- Lowland rice yield as affected by timing of water deficit and nitrogen fertilization. Agronomy Journal. 84:152-159. 1992
- Managing native and legume-fixed nitrogen in lowland rice-based cropping systems. Plant and Soil. 141:69-91. 1992
- Direct Measurement of Ammonia and Denitrification Fluxes from Urea Applied to Rice. Soil Science Society of America Journal. 55:543-548. 1991
- DINITROGEN AND NITROUS-OXIDE FLUX FROM UREA BASALLY APPLIED TO PUDDLED RICE SOILS. Soil Science Society of America Journal. 55:268-273. 1991
- Simulating soil nitrogen transformations and crop response to nitrogen using the ceres-rice model 1991
- Incorporation of urea in puddled rice soils as affected by tillage implements.. FERTILIZER RESEARCH. 26:169-178. 1990
- Evolution and soil entrapment of nitrogen gases formed by denitrification in flooded soil.. Soil Science and Plant Nutrition. 36:299-307. 1990
- INCREASING NUTRIENT USE EFFICIENCY IN RICE WITH CHANGING NEEDS. FERTILIZER RESEARCH. 26:157-167. 1990
- N-15 BALANCES AND NITROGEN-FERTILIZER USE EFFICIENCY IN UPLAND RICE. FERTILIZER RESEARCH. 26:179-187. 1990
- Nitrogen dynamics and management in rice-legume croppings systems 1990
- Simulating soil nitrogen transformations and crop response to nitrogen using the CERES-RICE model 1990
- Nitrogen-15 balances for urea and neem coated urea applied to lowland rice following two cowpea cropping systems. Plant and Soil. 120:233-241. 1989
- Nitrogen gas (N2+N2O) flux from urea applied to lowland rice as affected by green manure. Plant and Soil. 119:7-13. 1989
- Improving fertilizer use efficiency in Vietnam 1989
- Increasing nitrogen use efficiency in relation to N transformation processes in irrigated lowland rice 1989
- Nitrogen dynamics in rice soils as influenced by soil management 1989
- Direct Measurement of Dinitrogen and Nitrous Oxide Flux in Flooded Rice Fields 1988
- Labeled nitrogen fertilizer research with urea in the semi-arid tropics 1984
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dataset
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document
- Effects of no-tillage cultivation on some population characteristics of two-line hybrid rice Liangyoupeijiu 2011
- Effect of real-time and site-specific nitrogen management on various hybrid rice 2008
- Effect of nitrogen application timing on grain yield, nitrogen uptake and use efficiency of hybrid rice in South China 2007
- Accumulation of organic acids in relation to C:N ratios of straws and N application in flooded soil 2006
- Integrated crop management (ICM): field evaluation and lessons learnt 2006
- Improving the productivity and sustainability of rice-wheat systems: Issues and impacts 2003
- Challenge and opportunity in improving fertilizer-nitrogen use efficiency of irrigated rice in China 2002
- Improving nutrient management strategies for delivery in irrigated rice in Asia 2002
- Soil improvement in sub-Saharan Africa 1997
- Reducing nitrogen fertilizer losses: what are the potential economic benefits 1991
- Growth and water relations of lowland rice in response to timing of water deficit and nitrogen fertilization 1990
- Lowland Rice Response to Urea Following Three Cowpea Cropping Systems 1989
- Production sustainability in rice-based rainfed upland cropping system 1989
- Cooperative denitrification study in Thailand 1988
- Effect of Two Urease Inhibitors on Floodwater Ammonia Following Urea Application to Lowland Rice 1988
- Field Evaluation of Two Urease Inhibitors with Transplanted Lowland Rice 1988
- Measurement of denitrification loss in lowland rice fields 1988
- Use of floodwater urea and ammonium to assess nitrogen transformations in lowland rice fields 1987
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hide from search
- Development and impact of site specific nutrient management in the Red River Delta of Vietnam 2012
- Improving nitrogen fertilization in rice by site-specific N management. A review. Agronomy for Sustainable Development. 649-656. 2010
- Chapter 3 Crop Residue Management for Lowland Rice-Based Cropping Systems in Asia. Advances in Agronomy. 117-199. 2008
- Nitrogen Dynamics And Management In Rice-Legume Cropping Systems. Advances in Agronomy. 1-59. 1991