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This book describes concepts, value judgments and background information on the expanding conservation tillage practices in the United States and provides a technical appraisal of the state of the art. Still, much remains to be learned about the agronomic, agricultural engineering and environmental parameters; and it is hoped that the inormation herein presented will stimulate further research toward a more integrated apporach to conversation tillage practices.
Management principles; Environmental considerations; Economics; conservation tillage systems; Acceptance of conservation tillage.
Conservation tillage systems in Texas; Nitrogen requirements of conservation tillage systems; Water management with conservation tillage; Conservatio systems that meet tolerance limits on highly erodible lands; Economics conservation tillage research in Texas; Riding the new wave of farming practices using conservation tillage; Measured and simulated productivity of eroded soils; Plant and drill requirements for soils with surface residues; Effect of crop residues on crop pests, soil water, and soil temperature; Tillage effects on microbiological release of soil organic nitrogen; Integrating and conservation tillage technology; Methods to improve water infiltration on fragile soils; Weed control for conservation tillage; Factor influencing sucessful sod seeding of winter annuals into perenial grass sods in Texas; Conservation tillage systems for maximizing porfitability on the Texas Sothern High Plains; Relay planted soybeans: an alternative doublecropping system; Grain sorghum a no-till crop in Mississippi; Tillage effects on fertilizer rate and placement requirements of dryland grain sorghum; effect of different tillage practices on surface residue and soil physical properties; Cover crops in conservation tillage: benefits and leabilities; Effect of tillage, water quality, and gypsum on infiltration and water storage; Rating long-term soil productivity; Influence of cover crops on fertilize-N requirements of no-till corn and grain sorghum; Conservation tillage: corn, grain sorghum, and wheat in Dallas County, Texas; Growth of conservation tillage in Blacklands; Measuring yield difference and establishment as it relates to percent ground cover; Gramoxonon super herbicide in a conservation tillage system; Insecticidal performance of Turbofos in continuous and non-continuous corn fields; Prowl, a perfect fit for conservation-tillage; No-till corn and sorghum production in Texas Blacklands; Ratoom grain sorghum: an alternative cropping systems for conservation tillage; Interaction of tillage on corn yield and quality of the runoff water; No-till wheat production in the Texas Blacklands.
Soil Characteristics and classification; Why world hunger?; Soil water, drainage, and irrigation; Organic matter, microorganisms, and soil structure; Nitrogen problems and rotations; Fitting crops to the soils; Water conservation and erosion control; Land capability and soil management; Tillage and planting methods; Soil testing; Tissue testing; Plant symptoms of nutrient deficiency; Soil acidity and liming; Plant nutrients and fertilizers; Cropping systems and management practices: the North Central States; Cropping systems and management practices: Southern and western States; Soil management for Gardens, Greenhouses, and Lawns; Shifting cultivation; Multiple-cropping without and with interplanting; Forests, desertification, erosion; Management of arid lands and water management; Organic farming (Histosols).