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RESEARCH ARTICLE

Effect of surface-sown pod:seed mixtures on serradella establishment and persistence on rangelands in central New South Wales

D. L. Michalk and M. H. Campbell

Australian Journal of Experimental Agriculture 42(2) 143 - 148
Published: 12 March 2002

Abstract

Aerial sowing is the only option for introducing improved pasture species into much of the non-arable, acid soil rangelands in central New South Wales. However, low germination of seeds in serradella pods is a major problem causing poor establishment. Sowing different combinations of pod and seed was investigated as a means of improving germination and subsequent persistence in an experiment between 1993 and 1997. Results indicated that a pod:seed mixture of 75:25 was the most suitable ratio for establishing yellow serradella (Ornithopus compressus) when broadcast into native grassland on hardsetting, non-arable, acidic hill country. Nodulation failure observed at this cold tablelands site confirmed the need for a more winter-active inoculant for yellow serradella.

https://doi.org/10.1071/EA99151

© CSIRO 2002

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