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The key ingredients in the successful broad-scale sowing of native grasses
Whilst many successful projects have been completed to revegetate with native grasses, mostly these have been undertaken on a scale of less than 0.5 ha. Often the work has involved the use of grasses grown in nurseries being transplanted into the field and being closely maintained until fully established. Direct seeding of native grasses has not been widely practiced for a number of reasons, including seed availability and price. Additional to these two concerns there also remains a lack of confidence that direct seeding of native grasses can be successfully accomplished for areas larger 0.5 ha and that the costs of attempting to do so would be beyond the capacity of most individuals or authorities. Recent developments by a number of groups are starting to provide confidence and results are being obtained that should encourage people keen to take advantage of the beneficial attributes of the native grasses. Emerging positive results with the use of cover crops to protect seedlings of wallaby grass and weeping grass, improved knowledge of seedling herbicide tolerances, more knowledge of likely seedling problems with pests and the use of seed pelletising have introduced greater degrees of confidence in successful results. At the same time, the expectations of consumers of a rapid coverage and of no additional work after the date of sowing need to be moderated. Recent successes will be elaborated and all have combined the new technology with a realistic expectation of the requirements post-sowing.
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AUTHORS Ian Chivers Native Seeds Pty Ltd
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