Nearly two billion people depend on hundreds of millions of smallholder farmers for food security. Yet, these farmers' lives also hang in the balance due to their extreme vulnerability to the risks of soil degradation and depletion, soil exhaustion, climate change, and numerous biotic and abiotic stresses. Soil Management of Smallholder Agriculture
Soil-related constraints to smallholder agriculture. Smallholder agriculture in Sub-Saharan Africa. Subsistence farming in India. Resource-poor farmers of Central America and the Caribbeans. Technological options for alleviating soil-related constraints of resource-poor farmers. Nutrient management in soils of the tropics. Improving soil quality. Principles of sustainable agriculture. Managing soil fertility in dry region. Soil C sequestration and the human dimensions. Organic vs. inorganic soil nutrients. Sustainable soil management as an engine of economic development. Competing uses of crop residues. Soil security for resource-poor farmers. Soil biology and ecology. The human dimensions. Economics of crop production. Enhancing resource-use efficiency. Institutional constraints. Towards improving agronomic production. Research and development priorities.