selected publications
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article
- Nutrient flows and intensification options for smallholder farmers of the Lao uplands. Agricultural Systems. 177:102694. 2020
- Zinc Absorption From Agronomically Biofortified Wheat Is Similar to Post-Harvest Fortified Wheat and Is a Substantial Source of Bioavailable Zinc in Humans.. Journal of Nutrition. 149:840-846. 2019
- Using a Tri-Isotope (13C, 15N, 33P) Labelling Method to Quantify Rhizodeposition 2019
- Biophysical, Institutional and Economic Drivers of Sustainable Soil Use in Yam Systems for Improved Food Security in West Africa 2019
- Cowpea (Vigna unguiculata L. Walp) hosts several widespread bradyrhizobial root nodule symbionts across contrasting agro-ecological production areas in Kenya.. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 261:161-171. 2018
- Evaluation of MALDI-TOF mass spectrometry for the competitiveness analysis of selected indigenous cowpea (Vigna unguiculata L. Walp.) Bradyrhizobium strains from Kenya.. Applied Microbiology and Biotechnology. 102:5265-5278. 2018
- The Challenge of Improving Soil Fertility in Yam Cropping Systems of West Africa.. Frontiers in Plant Science. 8:1953. 2017
- Does closing knowledge gaps close yield gaps? On-farm conservation agriculture trials and adoption dynamics in three smallholder farming areas in Zimbabwe. JOURNAL OF AGRICULTURAL SCIENCE. 155:81-100. 2017
- Soil carbon stocks in conservation agriculture systems of Southern Africa. Soil & Tillage Research. 156:99-109. 2016
- Pasture degradation decreases organic P content of tropical soils due to soil structural decline. Geoderma. 257:123-133. 2015
- Cropping enhances mycorrhizal benefits to maize in a tropical soil. Soil Biology & Biochemistry. 79:117-124. 2014
- Farm-Scale Tradeoffs Between Legume Use as Forage versus Green Manure: The Case of Canavalia brasiliensis. Agroecology and Sustainable Food Systems. 38:25-45. 2014
- Pasture degradation impacts soil phosphorus storage via changes to aggregate-associated soil organic matter in highly weathered tropical soils. Soil Biology & Biochemistry. 68:150-157. 2014
- Internal Zn allocation influences Zn deficiency tolerance and grain Zn loading in rice (Oryza sativa L.). Frontiers in Plant Science. 4:534-534. 2013
- Identifying factors limiting legume biomass production in a heterogeneous on-farm environment. The Journal of Agricultural Science. 150:675-690. 2012
- Symbiont identity matters: carbon and phosphorus fluxes between Medicago truncatula and different arbuscular mycorrhizal fungi. Mycorrhiza. 21:689-702. 2011
- Nitrogen recoveries from organic amendments in crop and soil assessed by isotope techniques under tropical field conditions. Plant and Soil. 341:179-192. 2011
- Management impacts on biological phosphorus cycling in cropped soils 2011
- Options for Improving Plant Nutrition to Increase Common Bean Productivity in Africa 2011
- Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua. Nutrient Cycling in Agroecosystems. 88:447-462. 2010
- A comparative study on plant growth and root plasticity responses of two Brachiaria forage grasses grown in nutrient solution at low and high phosphorus supply.. Plant and Soil. 328:155-164. 2010
- Effect of season, soil type and fertilizer on the biomass production and chemical composition of five tropical shrub legumes with forage potential. Grass and Forage Science. 64:255-265. 2009
- Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio. Acta Agronómica. 58:1-8. 2009
- The effects of water regime on phosphorus responses of rainfed lowland rice cultivars.. Annals of Botany. 103:211-220. 2009
- Plant productivity in cassava-based mixed cropping systems in Colombian hillside farms. Agriculture, Ecosystems & Environment. 105:595-614. 2005
- Microbial community composition and substrate use in a highly weathered soil as affected by crop rotation and P fertilization. Soil Biology & Biochemistry. 36:889-901. 2004
- Isotope methods for assessing plant available phosphorus in acid tropical soils. European Journal of Soil Science. 54:605-616. 2003
- Phosphorus uptake by rice from soil that is flooded, drained or flooded then drained. European Journal of Soil Science. 54:77-90. 2003
- A method for controlling water content of small volumes of planted soil. Communications in Soil Science and Plant Analysis. 33:1909-1916. 2002
- Sequential phosphorus extraction of a 33P-labeled oxisol under contrasting agricultural systems. Soil Science Society of America Journal. 66:868-877. 2002
- Phosphorus Transformations in an Oxisol under contrasting land-use systems: The role of the soil microbial biomass. Plant and Soil. 237:197-210. 2001
- Low-P tolerance by maize (Zea mays L.) genotypes: Significance of root growth, and organic acids and acid phosphatase root exudation. Plant and Soil. 228:253-264. 2001