Premium
Uptake of Native Potassium by Plants from Natural Soil Aggregates of Different Sizes
Author(s) -
Tabatabai M. A.,
Hanway J. J.
Publication year - 1968
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/sssaj1968.03615995003200040036x
Subject(s) - lolium multiflorum , potassium , soil water , agronomy , chemistry , aggregate (composite) , zoology , environmental science , soil science , biology , materials science , organic chemistry , composite material
The uptake of the native K by ryegrass ( Lolium multiflorum ) from undried soil aggregates > 9, 5–9, 3–5, 2–3, and 1–2 mm in diameter was studied in 14 soil samples. Yields of K and percentage K in the plants were highly correlated with the exchangeable K in the undried soils, irrespective of aggregate size. Early in the cropping period, plant yields were slightly higher, and slightly more K was taken up by the plants from the smaller aggregates than from the larger aggregates.