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Lime Response as Related to Percent Al Saturation, Solution Al, and Organic Matter Content
Author(s) -
Evans Clyde E.,
Kamprath E. J.
Publication year - 1970
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/sssaj1970.03615995003400060023x
Subject(s) - saturation (graph theory) , soil water , lime , organic matter , chemistry , environmental chemistry , cation exchange capacity , soil ph , soil science , agronomy , environmental science , materials science , mathematics , metallurgy , organic chemistry , combinatorics , biology
Concentration of soil solution Al in mineral soils was related to the percent Al saturation of the effective CEC. In organic soils, however, the concentration of Al in the soil solution was more related to the amount of exchangeable Al than to percent Al saturation. Soils with increasing organic matter content had a lower content of soil solution Al at a given pH. Liming increased the growth of corn on mineral soils when the Al saturation was greater than 70%. On all soils except one, corn responded to liming when the concentration of soil solution Al was greater than 0.40 meq/liter. Soybeans responded to liming on mineral soils when the Al saturation was greater than 30%. On all soils soybeans responded to liming when the concentration of soil solution Al was greater than 0.20 meq/liter.