Vertical Distribution of Roots and Soil Nitrate: Tree Species and Phosphorus Effects (original) (raw)

Soil Science Society of America Journal, 1998

Abstract

Abstract We hypothesized that trees can rapidly root into subsoil and capture NO 3, which can accumulate in the subsoil of agricultural soils with high anion sorption. The vertical distribution of root length and inorganic N (NO 3 and NH 4) to 3.95-m soil depth was compared for 11-mo-old stands of eucalyptus (Eucalyptus grandis W. Hill ex Maiden), sesbania [Sesbania sesban (L.) Merr.], calliandra (Calliandra calothyrsus Meissner), markhamia [Markhamia lutea (Benth.) Schumann], and grevillea (Grevillea robusta A. ...

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