Landscape- and micro-scale variability of nitrogen fixation by chickpea

dc.contributor.author	Fu, G.
dc.contributor.author	Walley, F.L.
dc.contributor.author	van Kessel, C.
dc.date.accessioned	2018-09-10T20:13:06Z
dc.date.available	2018-09-10T20:13:06Z
dc.date.issued	1997-02-20
dc.identifier.uri	http://hdl.handle.net/10388/10255
dc.description.abstract	A landscape-scale study was conducted near Biggar, SK, to estimate N2 fixation by chickpea (Cicer arietinum) using the natural 15N abundance method. The spatial variability of N2 fixation was investigated at both the landscape- and micro-scale. Percentage of N derived from atmosphere (%Ndfa) in chickpea seed and residue ranged from 41.1%-69.5 % and 31.9%-88.4% , respectively. Total kg Ndfa (residue plus seed) was estimated as 8.2-83.8 kg N ha-t. Soil moisture, mineral N and pH were characterized by a distinct spatial pattern. Symbiotic N2 fixation, however, was not associated with a regular spatial pattern. Soil properties and N2 fixation were poorly correlated. Symbiotic N2 fixation was highly variable at both the landscape- and micro-scale.	en_US
dc.language.iso	en	en_US
dc.relation.ispartof	Soils and Crops Workshop
dc.rights	Attribution-NonCommercial-NoDerivs 2.5 Canada	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/2.5/ca/	*
dc.title	Landscape- and micro-scale variability of nitrogen fixation by chickpea	en_US
dc.type	Poster Presentation	en_US
dc.description.version	Non-Peer Reviewed

Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada