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Dive into the research topics where Steve Twomlow is active.

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Featured researches published by Steve Twomlow.


Advances in Agronomy | 2007

Nutritious subsistence food systems

Robin D. Graham; Ross M. Welch; David A. Saunders; Ivan Ortiz-Monasterio; Howarth E. Bouis; Merideth Bonierbale; S. de Haan; Gabriella Burgos; Gaa Thiele; Reyna Liria; Craig Meisner; Steve Beebe; Michael J. Potts; M. S. Kadian; Peter Hobbs; RjK Gupta; Steve Twomlow

The major subsistence food systems of the world that feed resource‐poor populations are identified and their capacity to supply essential nutrients in reasonable balance to the people dependent on them has been considered for some of these with a view to overcoming their nutrient limitations in sound agronomic and sustainable ways. The approach discusses possible cropping system improvements and alternatives in terms of crop combinations, external mineral supply, additional crops, and the potential for breeding staples in order to enhance their nutritional balance while maintaining or improving the sustainability and dietary, agronomic, and societal acceptability of the system. The conceptual framework calls for attention first to balancing crop nutrition that in nearly every case will also increase crop productivity, allowing sufficient staple to be produced on less land so that the remaining land can be devoted to more nutrient‐dense and nutrient‐balancing crops. Once this is achieved, the additional requirements of humans and animals (vitamins, selenium, and iodine) can be addressed. Case studies illustrate principles and strategies. This chapter is a proposal to widen the range of tools and strategies that could be adopted in the HarvestPlus Challenge Program to achieve its goals of eliminating micronutrient deficiencies in the food systems of resource‐poor countries.


Agriculture, Ecosystems & Environment | 2008

Coping better with current climatic variability in the rain-fed farming systems of sub-Saharan Africa: An essential first step in adapting to future climate change?

P.J.M. Cooper; John Dimes; K.P.C. Rao; B. Shapiro; Bekele Shiferaw; Steve Twomlow


Agricultural Systems | 2009

Socioeconomic and institutional factors influencing adoption of conservation farming by vulnerable households in Zimbabwe.

Kizito Mazvimavi; Steve Twomlow


Physics and Chemistry of The Earth | 2008

Building adaptive capacity to cope with increasing vulnerability due to climatic change in Africa – A new approach

Steve Twomlow; Francis Temba Mugabe; Moses Mwale; Robert J. Delve; Durton Nanja; Peter Carberry; Mark Howden


Nutrient Cycling in Agroecosystems | 2010

Micro-dosing as a pathway to Africa's Green Revolution: evidence from broad-scale on-farm trials

Steve Twomlow; David Rohrbach; John Dimes; Joseph Rusike; Walter Mupangwa; Bongani Ncube; Lewis Hove; Martin Moyo; Nester Mashingaidze; Putso Mahposa


Physics and Chemistry of The Earth | 2007

Effect of minimum tillage and mulching on maize (Zea mays L.) yield and water content of clayey and sandy soils

W. Mupangwa; Steve Twomlow; Sue Walker; Lewis Hove


Field Crops Research | 2012

Reduced tillage, mulching and rotational effects on maize (Zea mays L.), cowpea (Vigna unguiculata (Walp) L.) and sorghum (Sorghum bicolor L. (Moench)) yields under semi-arid conditions

W. Mupangwa; Steve Twomlow; Sue Walker


Plant and Soil | 2007

Productivity and residual benefits of grain legumes to sorghum under semi-arid conditions in southwestern Zimbabwe

B. Ncube; Steve Twomlow; Mark T. van Wijk; John Dimes; Ken E. Giller


Physics and Chemistry of The Earth | 2006

Implementing the millennium development food security goals – Challenges of the southern African context

D. Love; Steve Twomlow; Walter Mupangwa; Pieter van der Zaag; Bekithemba Gumbo


Physics and Chemistry of The Earth | 2006

Soil–water conservation and rainwater harvesting strategies in the semi-arid Mzingwane Catchment, Limpopo Basin, Zimbabwe

Walter Mupangwa; David Love; Steve Twomlow

Collaboration


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John Dimes

International Crops Research Institute for the Semi-Arid Tropics

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Walter Mupangwa

International Crops Research Institute for the Semi-Arid Tropics

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B. Ncube

International Crops Research Institute for the Semi-Arid Tropics

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Lewis Hove

International Crops Research Institute for the Semi-Arid Tropics

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Sue Walker

University of the Free State

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Pieter van der Zaag

Delft University of Technology

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W. Mupangwa

University of the Free State

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David Love

University of Zimbabwe

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Ken E. Giller

Wageningen University and Research Centre

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Stefan Uhlenbrook

UNESCO-IHE Institute for Water Education

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