Publication Date

1985

Location

Kyoto Japan

Description

The generally held belief that there is a direct quantitative relationship between the amount of top growth and the level of nitrogen fixation in lucerne was tested in this study. Dry matter and crude protein production were determined on 36 cultivars in an irrigated field trial over two growing seasons. The relationship between dry matter and crude protein production was determined for the cumulative yields as well as for all individual cuts. Some 14 cul ti vars were found to deviate significantly (0.1 % level) from expectation. Therefore, all cultivars did not respond to the same degree to the nitrogen which was fixed. Conversely, some cultivars could have been more efficient with regard to nitrogen fixation than others.

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Deviation from Expected Association Between Dry Matter and Crude Protein Production in 36 Lucerne Cultivars

Kyoto Japan

The generally held belief that there is a direct quantitative relationship between the amount of top growth and the level of nitrogen fixation in lucerne was tested in this study. Dry matter and crude protein production were determined on 36 cultivars in an irrigated field trial over two growing seasons. The relationship between dry matter and crude protein production was determined for the cumulative yields as well as for all individual cuts. Some 14 cul ti vars were found to deviate significantly (0.1 % level) from expectation. Therefore, all cultivars did not respond to the same degree to the nitrogen which was fixed. Conversely, some cultivars could have been more efficient with regard to nitrogen fixation than others.