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Surface Residue, Water Application, and Soil Texture Effects on Water Accumulation
Author(s) -
Unger Paul W.
Publication year - 1976
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1976.03615995004000020027x
Subject(s) - loam , soil water , residue (chemistry) , water retention , soil texture , environmental science , soil science , surface water , chemistry , agronomy , environmental chemistry , environmental engineering , biology , biochemistry
Surface residue rates and water application amounts affect evaporation from soil. These factors were evaluated for their effects on water accumulation in a clay loam and a fine sandy loam soil. Surface residue rates ranged from 0 to 12,000 kg/ha and water was added at 0.25, 0.5, 1.0, or 2.0 cm/addition. At low residue rates and water applications, little or no water accumulated in the soils. The amount of water that accumulated in the soils increased as surface residue rates and water applications increased. Results for the two soils were remarkably similar, apparently because the liquid and vapor flow characteristics for the two soils were similar at high water contents, even though their water retention characteristics differed markedly. The results of this laboratory study are discussed with regard to residue management practices for low (dryland) and high (irrigated) residue production systems of the Great Plains.