The influence of pulse crops on phosphorus supply to a subsequent wheat crop
Date
1998-02-19
Authors
MacLeod, C.A.
Schoenau, J.J.
Miller, P.
Journal Title
Journal ISSN
Volume Title
Publisher
ORCID
Type
Poster Presentation
Degree Level
Abstract
Field experiments were carried out at Central Butte and Swift Current, Saskatchewan,
to determine the influence of a previous pulse crop on phosphorus supply to a following
wheat crop. It was hypothesized that a portion of the non-nitrogen benefit from a pulse crop
in rotation is related to an effect on phosphorus availability. Wheat was planted on pea
stubble and fallow at Central Butte; and pea, lentil, chickpea, wheat stubble and fallow at
Swift Current. Differences in above and below ground residue effects were measured at
Central Butte by removing above ground residue from part of the pea plot and placing it on
an equal area of the fallow plot. Soil phosphorus supply rates were measured at various
times during early growth using PRSm anion exchange probes. Yields and phosphorus
uptake by the treatments were measured as indicators of effect of the previous crop on P
supplied to the next crop.
Description
Keywords
non-N benefits, phosphorus uptake
Citation
Degree
Department
Program
Advisor
Committee
Citation
Part Of
Soils and Crops Workshop