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| Giesbertz, M.; Pannell, David J.; Abadi, Amir; Powles, Stephen B.. |
| Herbicide resistance has become a major problem in dryland agriculture. In Australia this particularly applies to annual ryegrass (Lolium rigidum) which has developed multiple resistance to a wide range of commonly used selective herbicides. Although herbicides are a very cost-effective means of reducing weed density, major changes to their use are required if sustainable weed management is to be achieved. In this study a model of ryegrass population dynamics was used to identify the best integrated weed management strategies and to evaluate changes in the economic payoff when choosing to conserve herbicides rather than exploit them rapidly. A situation of evolving herbicide resistance was simulated for a continuous wheat-lupin rotation and two cropping... |
| Tipo: Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 1999 |
URL: http://purl.umn.edu/123808 |
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| Abadi, Amir. |
| This paper is a summary of a project that compared the relative profitability of existing, emerging and prospective agroforestry systems with profitability of conventional agricultural land uses in the cropping zones of Western Australia and New South Wales. The project explored the economic boundary conditions under which several promising agroforestry systems may be viable in the lower rainfall zones. Partial budgeting and discounted cash flow techniques were used to conduct the comparative analysis of alternative land use scenarios. The profitability, cash flows and debt associated with each of the scenario are reported. The analysis underpinning this research provides estimates of the economic value of the temporal and spatial interaction effects of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management. |
| Ano: 2003 |
URL: http://purl.umn.edu/24364 |
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