Publication Date
1989
Description
New Zealand pastures obtain most of their nitrogen (N) from fixation of atmospheric N2 by white clover (Trifolium repens L.). Grasslands Huia has been the predominant cultivar used, but in recent years a number of new cultivars have become available. Studies under mowing and sheep grazing have shown that the large-leaved cultivars are the most productive (van den Bosh et al., 1986; Frame and Boyd, 1987). These cultivars have not been evaluated under dairy cow grazing. This paper describes a 2 year field experiment examining white clover cultivars under dairy cow grazing for production, N2 fixation and transfer of fixed N to associated ryegrass.
Citation
Ledgard, S F., "Nitrogen Fixation and Transfer to Associated Grasses by White Clover Cultivars Under Dairy Cow Grazing" (2025). IGC Proceedings (1989-2023). 31.
https://uknowledge.uky.edu/igc/1989/session2/31
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Nitrogen Fixation and Transfer to Associated Grasses by White Clover Cultivars Under Dairy Cow Grazing
New Zealand pastures obtain most of their nitrogen (N) from fixation of atmospheric N2 by white clover (Trifolium repens L.). Grasslands Huia has been the predominant cultivar used, but in recent years a number of new cultivars have become available. Studies under mowing and sheep grazing have shown that the large-leaved cultivars are the most productive (van den Bosh et al., 1986; Frame and Boyd, 1987). These cultivars have not been evaluated under dairy cow grazing. This paper describes a 2 year field experiment examining white clover cultivars under dairy cow grazing for production, N2 fixation and transfer of fixed N to associated ryegrass.
