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Smallholder farming systems contribute a substantial quantity of the food consumed in many lower and middle-income countries and contribute to the national and local economies. Despite the importance of smallholder farming, a transformation is needed in order to deliver food security and decent incomes for the farmers themselves and at the national level. This transformation must also be sustainable in terms of environmental impacts and social equity in order to be successful in the long term. The pressures of population growth, climate change, and land fragmentation compound the problem. Addressing these overlapping issues is a big challenge. One obstacle is the lack of good quality granula...
Over the last decade there has been renewed interest in food security and the state of the global food system. Population growth, climate change and food price spikes have combined to focus new attention on the technologies and institutions that underpin the production and consumption of food that is varied, nutritious and safe. Knowledge politics within development-oriented agronomy set the stage for some models of agricultural development to be favoured over others, with very real implications for the food security and wellbeing of many millions of people. Agronomy for Development demonstrates how the analysis of knowledge politics can shed valuable new light on current debates about agric...
This study examines the interactions between nitrogen and the ecosystem and discusses nitrogen fertilization practices around the world. Simulation models that play an important role in determining the dynamics of source-sink relationships are presented, helping to pinpoint inefficiencies and develop strategies to synchronize nitrogen supply and demand.
Food insecurity is a fundamental challenge to human welfare and economic growth in Africa. Low agricultural production leads to low incomes, poor nutrition, vulnerability to risk and threat and lack of empowerment. This book offers a comprehensive synthesis of agricultural research and development experiences from sub-Saharan Africa. The text highlights practical lessons from the sub-Saharan Africa region.
What would it take to achieve a genuinely food-secure world—one without hunger or malnutrition, where everyone gets to consume the right quantity and quality of food to live a healthy, active, and productive life? Bringing about such a future requires transforming how our food is grown, managed, and distributed. From production to consumption, food systems must be sustainable, halting environmental degradation and even repairing the damage we have previously done. This book provides an accessible guide to making healthy diets from sustainable food systems available to all. Glenn Denning bridges the divisive worlds of science, policy, and practice. He synthesizes the most relevant literatur...
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This SSSA Special Publication presents in the first chapter the new conceptual approach of replenishing soil fertility as an investment in natural resource capital. It is followed by an analysis of the magnitude of soil fertility depletion, a review of field research trials, and a perspective from temperate-region soils. These in turn are followed by three process-oriented chapters on phosphorus, nitrogen, and combining organic and inorganic nutrient inputs. The last two focus on key socioeconomic considerations, gender and environmental economics.