ISSN:
1573-5036
Keywords:
EUF-N
;
EUF-N org
;
N removal
;
Grain yields of cereals
;
Yield potential
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Field experiments over two years were conducted on four fields with two respectively three soil types of different rooting depth to study the relationships between EUF-N fractions in the topsoil on the one hand and grain yield and N removal by different cereal crops on the other. The following results were obtained: A highly significant positive correlation was found to exist between N removal and ΦEUF-N contents in the topsoil measured in the summer prior to the beginning of the experiment. In both experimental years a close correlation was observed between grain yields of cereals and ΦEUF-N contents in the topsoil. The close relationship is due to ΦEUF-N contents in the topsoil being closely correlated with the readily available water capacity of the rooted soil volume. These results indicate the adequacy of a ΦEUF-N content as an index of the yield potential of a site which could be of practical significance in soil analysis.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02182721
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