Isotope studies on crop utilization and soil fixation of nitrogen from calcium nitrate, ammonium sulphate and urea in several Manitoba soils
Crop utilization and soil fixation of nitrogen from three 15N-labelled N-carriers were studied on several Manitoba soils. In a growth chamber study, more nitrogen from Ca(NO3)2 was utilized by wheat than from (NH2)2CO in the slightly acid soils. The `A' value indicates that Ca(NO3)2 is more a...
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2012
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| Online Access: | http://hdl.handle.net/1993/6633 |