Soil Quality and Agricultural SustainabilityCRC Press, 1 nov. 1998 - 400 pages Soil degradation causes a shrinking of arable land resources, and the persistence of starvation and malnutrition. The depletion is compounded by the increasing populations of developing tropical nations, and the conversion of agricultural land to other uses. As a result, per capita grain harvesting and irrigated land is in steady decline all over the world. The decrease in horticultural resources and productivity has inspired Soil Quality and Agricultural Sustainability, which is based primarily on papers presented at the 1996 conference on soil degradation, sponsored by Ohio State University, the USAID and the International Agricultural Research Centers. The book addresses itself to six concerns: basic concepts and global issues, nutrient and water inputs, soil quality management in Asia, in Africa, and in the Tropical Americas, and future priorities. The Editor's goal is a new paradigm in soil quality research: a multidisciplinary approach. He proposes that an erosion management program include soil scientists, hydrologists, climatologists, sedimentologists, geographers, agronomists, agricultural engineers, land use planners, economists, anthropologists and social scientists. Lal advocates an optimistic, forward-thinking brand of soil science that concentrates on conservation and fertility. The 26 chapters explore what Lal considers to be the priorities: agricultural sustainability, soil quality, food security, quality restoration, long-term management, and the failure to adopt new technology. In sum, they paint a comprehensive portrait of the current state, and future prospects, for worldwide agronomic viability. |
Table des matières
Soil Quality and Agricultural Sustainability | 3 |
Interventions for Sustaining Civilization | 13 |
Assessment of Soil Quality | 33 |
Minimum Data Sets Needed for Soil and Climatic Characterization | 44 |
Strategies for Fertilizer Research in the Tropics | 53 |
Sustainable Management of Land and Water Resources in Irrigated Semiarid | 67 |
Addressing Key Natural Resource Management Challenges in the Humid | 86 |
The Role of Soil Management in Improving Yields in the RiceWheat | 129 |
Maintenance of Soil Organic Matter and Nitrogen Supply in | 223 |
Grow the Soils to Grow the Crops in Africa | 237 |
No Till and Mulching Effects on Soil Physical Quality of | 251 |
Research Strategies for Sustainable Agriculture in Acid Savannas | 269 |
Agricultural Intensification Systems and Their Impact on Soil | 288 |
Carlos R Spehar | 301 |
Physical and Economic Model Integration for the Measurement | 319 |
A Decade of Progress at IBSRAM and Future Priorities | 337 |
Sustainable Management of Soil and Water Resources in | 140 |
Soil Fertility Management for Sustained Production in the West Asia | 155 |
Soil Conservation and Sustainability of Agricultural Systems | 177 |
Consequences of Soil Erosion on Soil Productivity and | 197 |
The Role of Ruminant Livestock in Soil Fertility Management | 214 |
An Experiment to Enhance | 349 |
Need for Action and Researchable Priorities | 360 |
367 | |
Expressions et termes fréquents
Africa Agric Agricultural Research Agroforestry applied areas Asia assessment biological biomass carbon Cerrados chemical CIMMYT cm depth countries crop production crop residue crop yield Cropping Systems cultivation data set decline economic ecoregion ecosystem effect environment environmental factors fallow farmers Farming Systems field forest global groundwater ha¹ Haryana hedgerow IBSRAM impact Imperata improved increase input International irrigation Kenya kg/ha land degradation legumes long-term maize maize yield manure mulch natural resources Nigeria nitrogen nutrient pasture plant plow population potential problems processes Program Punjab rainfall reduced region Resck resource management rice Rice-Wheat rotation salinity savanna scientists season semiarid soil and land soil and water soil conservation soil degradation soil erosion soil fertility soil loss soil management soil organic matter soil physical soil quality Soil Sci Soil Science soybeans Sustainable Agriculture Table Tanzania technologies tillage tion treatments trials Tropical wheat zone