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Corn Yield‐Fragipan Depth Relations on a Zanesville Soil
Author(s) -
Frye W. W.,
Murdock L. W.,
Blevins R. L.
Publication year - 1983
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/sssaj1983.03615995004700050042x
Subject(s) - loam , silt , volume (thermodynamics) , soil structure , soil water , agronomy , soil horizon , horizon , environmental science , soil science , geology , mathematics , biology , paleontology , physics , geometry , quantum mechanics
A fragipan is a dense, somewhat indurated, very strongly acid, and slowly or very slowly permeable soil horizon that can be a physical or a chemical barrier to plant root growth. Erosion of a fragipan soil decreases the volume of soil for root growth and water storage. The effect of depth to a fragipan horizon on yield of corn ( Zea mays L.) was measured during a four‐year study on a Zanesville silt loam (Typic Fragiudalf, fine‐silty, mixed, mesic). In 3 of the 4 years, susceptibility to water stress increased with decreasing depth to the fragipan horizon. Greater depth to the fragipan was associated with an increased volume for rooting and water storage, resulting in higher grain yields.