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Bicarbonate Accumulation and pH Changes at the Soybean (Glycine max (L.) Merr.) Root‐Soil Interface
Author(s) -
Riley D.,
Barber S. A.
Publication year - 1969
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/sssaj1969.03615995003300060031x
Subject(s) - bicarbonate , glycine , chemistry , soil ph , agronomy , horticulture , environmental chemistry , soil water , soil science , geology , biochemistry , biology , amino acid , organic chemistry
Investigation of the root‐soil interface environment of soybean roots showed an accumulation of HCO 3 and an increase in pH as compared to the original soil. The magnitude of the HCO 3 accumulation and pH increases was related to the NO 3 level of the soil solution. This effect was attributed to a greater uptake of anions than cations by the plant so that HCO 3 release maintained electrical neutrality. The pH increased by as much as one unit and HCO 3 accumulation was as great as 35 meq/100 g of dry roots.