|Author:||Unger, P. W. ; Payne, W. A. ; Peterson, G. A.|
|Book Group Author:||NA|
This paper focuses on the principles and practices that should lead to improved production of dryland crops. First, the factors (precipitation and evaporation) and principles governing soil properties that affect water capture, like soil texture, aggregation and pore size are described, as well as the interaction of water capture and water retention against evaporation. Second, the practices involved in the successful retention of water in soil are discussed, including: evaporation management through tillage and mulching, weed management, and deep percolation management. Finally, the relation between cropping systems and efficient water use is also discussed.
aggregates, agricultural production, arid lands, arid zones,cropping systems, dry farming, evaporation, mulching, percolation, plantwater relations, pore size, precipitation, productivity, soil texture,soil water movement, soil water retention, tillage, water conservation,water harvesting, water use efficiency, weed control, weeds, aridregions, dryland farming, precipitation trapping, runoff collection,soil cultivation, Plant Water Relations (FF062), Plant Production(FF100), Plant Cropping Systems (FF150), Weeds and Noxious Plants(FF500), Pesticides and Drugs (General) (HH400), Soil Physics (JJ300),Soil Management (JJ900), Erosion; Soil and Water Conservation (PP400),Meteorology and Climate (PP500)