Abstract
Abstract Three years' seasonal pasture production data for an established oversown tussock pasture on the lower Otago Plateau are presented. The mean annual yield of the low fertility tolerant grasses (LFTG), sweet vernal (Anthoxanthum odoratum L.), browntop (Agrostis tenuis Sibth.), soft brome (Bromus mollis L.), Kentucky bluegrass (Poapratensis L.), and crested dogstail (Cynosurus cristatus L.) was 2673 kg dry matter (DM)/ha compared with 3190 kg DM/ha for ryegrass (Lolium perenne L.). Only in autumn were the yields of LFTG significantly lower than ryegrass (304 and 619 kg DM/ha respectively). The pattern of pasture production was closely related to seasonal rainfall. The results are discussed in the context of the overall management problems faced by runholders in the area, and strategies to develop more reliable and productive pastures are outlined. Improvement of ryegrass and clover content is considered in relation to stock, pasture, fertiliser, and pest management.
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