Publication Date
1989
Description
In New Zealand hill pastures, winter and early spring growth is often less than the maintenance of breeding ewes. In late spring and summer, pasture growth often exceeds requirements leading to pasture quality problems. It is usually uneconomic to overcome these problems by conservation, supplementary feeding or adjustement of animal numbers. An increased herbage accumulation in late winter as a result of fertiliser N application, should increase post-lambing ewe liveweights and hence lamb growth rates ; increase ewe mating weights and hence improve flock prolificacy with consequent improvements in the utilisation of summer pasture. Two experiments examined the effect of N fertiliser application rates at constant or differential stocking rates.
Citation
Clark, D A. and Lambert, M G., "The Use of Fertilizer Nitrogen and Increased Animals Production from New Zealand Hill Pastures" (2025). IGC Proceedings (1989-2023). 77.
https://uknowledge.uky.edu/igc/1989/session10/77
Included in
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The Use of Fertilizer Nitrogen and Increased Animals Production from New Zealand Hill Pastures
In New Zealand hill pastures, winter and early spring growth is often less than the maintenance of breeding ewes. In late spring and summer, pasture growth often exceeds requirements leading to pasture quality problems. It is usually uneconomic to overcome these problems by conservation, supplementary feeding or adjustement of animal numbers. An increased herbage accumulation in late winter as a result of fertiliser N application, should increase post-lambing ewe liveweights and hence lamb growth rates ; increase ewe mating weights and hence improve flock prolificacy with consequent improvements in the utilisation of summer pasture. Two experiments examined the effect of N fertiliser application rates at constant or differential stocking rates.
