selected publications
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article
- A spatial framework for ex-ante impact assessment of agricultural technologies. GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT. 20:72-81. 2019
- Mapping rootable depth and root zone plant-available water holding capacity of the soil of sub-Saharan Africa.. Geoderma. 324:18-36. 2018
- Beyond the plot: technology extrapolation domains for scaling out agronomic science.. Environmental Research Letters. 13:54027. 2018
- Rooting for food security in Sub-Saharan Africa. Environmental Research Letters. 12:114036. 2017
- Can yield gap analysis be used to inform R&D prioritisation?. GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT. 12:109-118. 2017
- Kenya public weather processed by the Global Yield Gap Atlas project. Journal of Agricultural Research. 3:16-18. 2017
- Can sub-Saharan Africa feed itself?. Proceedings of the National Academy of Sciences of the United States of America. 113:14964-14969. 2016
- Temperature explains the yield difference of double-season rice between tropical and subtropical environments. Field Crops Research. 198:303-311. 2016
- Global nitrogen budgets in cereals: A 50-year assessment for maize, rice, and wheat production systems.. Scientific Reports. 6:19355-19355. 2016
- Creating long-term weather data from thin air for crop simulation modeling. Agricultural and Forest Meteorology. 209:49-58. 2015
- Assessment of rice self-sufficiency in 2025 in eight African countries. GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT. 5:39-49. 2015
- From field to atlas: Upscaling of location-specific yield gap estimates. Field Crops Research. 177:98-108. 2015
- How good is good enough? Data requirements for reliable crop yield simulations and yield-gap analysis. Field Crops Research. 177:49-63. 2015
- Reply to 'No-till agriculture and climate change mitigation'. Nature Climate Change. 5:489-489. 2015
- Soybean Irrigation Management: Agronomic Impacts of Deferred, Deficit, and Full‐Season Strategies. Crop Science. 54:2782-2795. 2014
- Limited potential of no-till agriculture for climate change mitigation. Nature Climate Change. 4:678-683. 2014
- Use of agro-climatic zones to upscale simulated crop yield potential. Field Crops Research. 143:44-55. 2013
- Soybean Root Development Relative to Vegetative and Reproductive Phenology. Agronomy Journal. 104:1702-1709. 2012
- Effective monitoring of agriculture: a response. Journal of Environmental Monitoring. 14:738-742. 2012
- Maize-N: A Decision Tool for Nitrogen Management in Maize. Agronomy Journal. 103:1276-1283. 2011
- Nodal Leaf Area Distribution in Soybean Plants Grown in High Yield Environments. Agronomy Journal. 103:1198-1204. 2011
- The importance of maintenance breeding: a case study of the first miracle rice variety-IR8.. Field Crops Research. 119:342-347. 2010
- Simulation of soybean growth and yield in near-optimal growth conditions. Field Crops Research. 119:161-174. 2010
- Estimating maize nutrient uptake requirements.. Field Crops Research. 118:158-168. 2010
- Monitoring the world's agriculture. Nature. 466:558-560. 2010
- Evaluation of NASA Satellite‐ and Model‐Derived Weather Data for Simulation of Maize Yield Potential in China. Agronomy Journal. 102:9-16. 2010
- Growth and Nitrogen Fixation in High‐Yielding Soybean: Impact of Nitrogen Fertilization. Agronomy Journal. 101:958-970. 2009
- Leaf area index simulation in soybean grown under near-optimal conditions. Field Crops Research. 108:82-92. 2008
- Temporal Origin of Nitrogen in the Grain of Tropical Wet-Season Rice. Agronomy Journal. 97:698-704. 2005
- Temporal origin of nitrogen in the grain of irrigated rice in the dry season: the outcome of uptake, cycling, senescence and competition studied using a 15N-point placement technique. Field Crops Research. 89:337-348. 2004
- Rice yields decline with higher night temperature from global warming. Proceedings of the National Academy of Sciences of the United States of America. 101:9971-9975. 2004
- Uptake of nitrogen by rice studied with a 15N point-placement technique. Plant and Soil. 259:259-265. 2004
- Crop rotation and residue management effects on carbon sequestration, nitrogen cycling and productivity of irrigated rice systems. Plant and Soil. 225:263-278. 2000
- Reversal of rice yield decline in a long-term continuous cropping experiment.. Agronomy Journal. 92:633-643. 2000
- Grain yield of rice cultivars and lines developed in the Philippines since 1966. Crop Science. 40:307-314. 2000
- Yield Potential Trends of Tropical Rice since the Release of IR8 and the Challenge of Increasing Rice Yield Potential. Crop Science. 39:1552-1559. 1999
- Effect of Leaf Phosphorus and Potassium Concentration on Chlorophyll Meter Reading in Rice. Plant Production Science. 2:227-231. 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
- Critical nitrogen concentrations: implications for high-yielding rice (Oryza sativa L.) cultivars in the tropics. Field Crops Research. 59:31-41. 1998
- COMPARISON OF HIGH-YIELD RICE IN TROPICAL AND SUBTROPICAL ENVIRONMENTS. I.DETERMINANTS OF GRAIN AND DRY MATTER YIELDS. Field Crops Research. 57:71-84. 1998
- Comparison of high-yield rice in tropical and subtropical environments: II. Nitrogen accumulation and utilization efficiency. Field Crops Research. 57:85-93. 1998
- Upper Threshholds of Nitrogen Uptake Rates and Associated Nitrogen Fertilizer Efficiencies in Irrigated Rice. Agronomy Journal. 90:178-185. 1998
- 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
- 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
- Simulating genotypic strategies for increasing rice yield potential in irrigated, tropical environments. Field Crops Research. 51:5-17. 1997
- Soil N supply and plant N uptake by irrigated rice in Tamil Nadu. Field Crops Research. 51:55-64. 1997
- Inorganic and organic phosphorus dynamics during a build-up and decline of available phosphorus in an ultisol. SOIL SCIENCE. 162:254-264. 1997
- Nutritional physiology of the rice plants and productivity decline of irrigated rice systems in the tropics. Soil Science and Plant Nutrition. 43:1101-1106. 1997
- Long-term Comparison of the Agronomic Efficiency and Residual Benefits of Organic and Inorganic Nitrogen Sources for Tropical Lowland Rice. Experimental Agriculture. 32:427-444. 1996
- Changes in chemical properties of organic matter with intensified rice cropping in tropical lowland soil. European Journal of Soil Science. 47:293-303. 1996
- Nitrogen supplying capacity of lowland rice soils in southern India. Communications in Soil Science and Plant Analysis. 27:2851-2874. 1996
- INCREASED N-USE EFFICIENCY USING A CHLOROPHYLL METER ON HIGH-YIELDING IRRIGATED RICE. Field Crops Research. 47:243-252. 1996
- Nitrogen-use efficiency in tropical lowland rice systems: contributions from indigenous and applied nitrogen. Field Crops Research. 47:1-12. 1996
- Soil organic matter and the indigenous nitrogen supply of intensive irrigated rice systems in the tropics. Plant and Soil. 182:267-278. 1996
- Effect of sheath blight on yield in tropical, intensive rice production system. Plant Disease. 80:1103-1108. 1996
- Effects of late nitrogen fertilizer application on head rice yield, protein content, and grain quality of rice. Cereal Chemistry. 73:556-560. 1996
- Fertilizer inputs, nutrient balance and soil nutrient supplying power in intensive, irrigated rice system. III. Phosphorus. Nutrient Cycling in Agroecosystems. 46:111-125. 1996
- Fertilizer inputs, nutrient balance, and soil nutrient-supplying power in intensive, irrigated rice systems. I. Potassium uptake and K balance. Nutrient Cycling in Agroecosystems. 46:1-10. 1996
- Fertilizer inputs, nutrient balance, and soil nutrient-supplying power in intensive, irrigated rice systems. II: Effective soil K-supplying capacity. Nutrient Cycling in Agroecosystems. 46:11-21. 1996
- Nitrogen use efficiency of irrigated tropical rice established by broadcast wet-seeding and transplanting. FERTILIZER RESEARCH. 45:123-134. 1996
- Nitrogen use efficiency of irrigated tropical rice established by broadcast wet-seeding and transplanting 1996
- The nature of agricultural systems: food security and environmental balance. Food Policy. 20:439-454. 1995
- 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
- Chlorophyll meter estimates leaf area‐based nitrogen concentration of rice. Communications in Soil Science and Plant Analysis. 26:927-935. 1995
- Kinetics of potassium fixation in vermiculitic soils under different moisture regimes. Soil Science Society of America Journal. 59:423-429. 1995
- Dynamic soil tests for rice 1995
- Microbial biomass and organic matter turnover in wetland rice soils. Biology and Fertility of Soils. 19:333-342. 1995
- Potassium balance and soil potassium supplying power in intensive, irrigated rice ecosystems 1995
- RELATIONSHIP BETWEEN LEAF PHOTOSYNTHESIS AND NITROGEN-CONTENT OF FIELD-GROWN RICE IN TROPICS. Crop Science. 35:1627-1630. 1995
- Evaluation of a mechanistic model of potassium uptake by cotton in vermiculitic soil. Soil Science Society of America Journal. 58:1174-1183. 1994
- Cotton root and shoot response to localized supply of nitrate, phosphate and potassium: Split-pot studies with nutrient solution and vermiculitic soil. Plant and Soil. 161:179-193. 1994
- Microwave‐oven drying of rice leaves for rapid determination of dry weight and nitrogen concentration. International plant nutrition colloquium. 10. 17:209-217. 1994
- Quantitative understanding of the irrigated rice ecosystem and yield potential 1994
- Quantitative understanding of yield potential 1994
- Yield potential of rice: past, present and future perspectives 1994
- conceptual framework for nitrogen management of irrigated rice in high-yield environments 1994
- Nitrogen and yield potential of irrigated rice. Plant and Soil. 155:391-394. 1993
- Nitrogen use efficiency of rice reconsidered: What are the key constraints?. Plant and Soil. 155:359-362. 1993
- Adjustment for Specific Leaf Weight Improves Chlorophyll Meter's Estimate of Rice Leaf Nitrogen Concentration. Agronomy Journal. 85:987-990. 1993
- Nitrogen fixation in tropical cropping systems. Field Crops Research. 34:230-232. 1993
- Input/output analysis of the cumulative soybean response to phosphorus on an ultisol. Field Crops Research. 34:23-36. 1993
- Increasing the yield plateau in rice and the role of global climate change.. Journal of Agricultural Meteorology. 48:795-798. 1993
- NITROGEN USE EFFICIENCY OF RICE RECONSIDERED - WHAT ARE THE KEY CONSTRAINTS. Plant and Soil. 155:359-362. 1993
- Fertilizer-nitrogen use efficiency of irrigated wheat. I. Uptake efficiency of preplant versus late-season application. Agronomy Journal. 84:682-688. 1992
- COTTON RESPONSE TO RESIDUAL FERTILIZER POTASSIUM ON VERMICULITIC SOIL - ORGANIC-MATTER AND SODIUM EFFECTS. Soil Science Society of America Journal. 56:823-830. 1992
- FERTILIZER-NITROGEN USE EFFICIENCY OF IRRIGATED WHEAT .2. PARTITIONING EFFICIENCY OF PREPLANT VERSUS LATE-SEASON APPLICATION. Agronomy Journal. 84:689-694. 1992
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chapter
- Food 2005
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document
- 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
- Studies on grain filling characteristics in' new plant type' rice lines developed in IRRI 1996
- Innovative nitrogen management strategies for lowland rice systems 1995
- Long-term experiments and productivity indexes to evaluate the sustainability of cropping systems 1995
- Yield decline and the nitrogen economy of long-term experiments on continuous, irrigated rice systems in the tropics 1995
- Transplanting shock in rice 1994
- Yield potential of transplanted and direct wet-seeded rice in high-yield environments in the Philippines 1994
- ELUCIDATING THE ROLE CYTOKININS PLAY IN THE CONTROL OF RICE GRAIN DEVELOPMENT. Plant Physiology. 61-61. 1993
- Extrapolating trends from long-term experiments to farmers fields: the case of irrigated rice systems in Asia 1993
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editorial article
- Evaluating conservation agriculture for small-scale farmers in Sub-Saharan Africa and South Asia. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 187:1-10. 2014
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hide from search
- Nitrogen uptake, fixation and response to fertilizer N in soybeans: A review. Field Crops Research. 1-13. 2008
- Curiosities, nonsense, non-science and SRI. Field Crops Research. 355-356. 2005
- Management of phosphorus, potassium, and sulfur in intensive, irrigated lowland rice. Field Crops Research. 113-138. 1998
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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