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Catalogue: GRDC Final Reports
The project has shown how the practice of SSM can deliver large, consistent and recurring increases in the yields of cereals, canola and pulse crops grown on Sodosol soils across the HRZ of Victoria... The practice was developed to overcome crop yield constraints caused by dense clay subsoils that are widespread across the HRZ. Low aeration in the clay limits deep root growth into the subsoil and this has been identified as a cause for the generally disappointing crop yields in the Victorian HRZ. Earlier research demonstrated how SSM can transform the physical properties of the clay layers... For sites with the 1/2 SSM treatment (6 site x seasons), the commercial wheat crop yielded an average of 6.2t/ha, the full SSM 9.7t/ha, and the 1/2 SSM 8.8 t/ha (42% response).This was surprising and suggests that this lower rate of manure incorporation will also give increases in grain yield...
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Catalogue: GRDC Research Summaries
Impact Assessment: An Economic Analysis of GRDC Investment in Western Australian No Tillage Farming Association Industry Productivity and Profitability:.. WANTFA_final_12June_2009 < Keep browsing 0 Responses to Impact Assessment: An Economic Analysis of GRDC Investment in Western Australian No Tillage Farming Association.. Log in or register to leave a comment...
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Catalogue: GRDC Publications
Farmers see pH as a influencer of yield and test and manage soils ... Overall, farmers lack skills/confidence to have a go - and don't know a "trusted someone" to get advice from... This season he had a delver made and he now contracts himself out to farmers...
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Catalogue: GRDC Updates (West)
Evaluation of the environmental and economic impact of Roundup Ready canola in the Western Australian crop production system James Fisher and D sir e Futures, York, Western Australia, james@desireefutures.net.au Peter Tozer, PRT Consulting, Armidale NSW, prt_consulting@live.com.au.. Overall, the analysis suggests that Roundup Ready canola could be as profitable or more profitable than triazine tolerant canola with a reduced environmental impact and slightly reduced fuel use... Crop Updates is a partnership between the Department of Agriculture and Food, Western Australia and the Grains Research & Development Corporation 176..
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Catalogue: GRDC Updates
Intuitively we would believe that cropping has greater risk and potentially greater returns compared to livestock enterprises... The analysis presented in this paper is focussed on part of the business risk (price, yield and costs)... Historically when we wanted to compared different options we would conduct analysis using average values, such as the average price of grain, the average expected yield and the average expected costs...
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Catalogue: GRDC Final Reports
Economic analysis based on modelling the effect of typical practice changes on farm economic performance indicates the project has resulted in economic benefits of between $19-$42ha/annum of cropping land, a benefit cost ratio of 7.5:1 and an internal rate of return of 63.8% on funds invested... A comprehensive evaluation survey conducted at the conclusion of the project provides quantitative data on practice change and other benefits accruing from the project... Economic analysis based on modelling the effect of typical practice changes on farm economic performance indicated that the project has contributed economic benefits of between $19-$42/ha/ann...
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Catalogue: GRDC Updates
Long fallow increases soil water at sowing which in turn increases yield on good water holding capacity soils, particularly when the growing season rainfall is low (<210mm) and the summer rainfall was low (<100mm).. On good water holding capacity soils, 22-29% of years following long fallow had an average yield increase of 0.46-0.59 t/ha at Dalwallinu, 39-47% of years had an average yield increase of 0.49-0.82 t/ha in Perenjori while at Merredin 37-60% of years had a 0.51-0.76 t/ha yield increase... From other modelling work the increase stored mineral N from a fallow is 40-70 kg N/ha (Farre et al, 2012)...
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Catalogue: GRDC Updates (West)
Long fallow increases soil water at sowing which in turn increases yield on good water holding capacity soils, particularly when the growing season rainfall is low (<210mm) and the summer rainfall was low (<100mm).. On good water holding capacity soils, 22-29% of years following long fallow had an average yield increase of 0.46-0.59 t/ha at Dalwallinu, 39-47% of years had an average yield increase of 0.49-0.82 t/ha in Perenjori while at Merredin 37-60% of years had a 0.51-0.76 t/ha yield increase... From other modelling work the increase stored mineral N from a fallow is 40-70 kg N/ha (Farre et al, 2012)...
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Catalogue: GRDC Updates
Determining the yield deficit produced by a limiting growth factor, combined with the area of crop affected, allows accurate predictions on total economic losses to be made... Figure 2: Relationship between colour zone (grey and black bars indicate the corresponding hand sample results from the high and low crop vigour zones respectively), with (a) yield and (b) % pod maturity measured at each sample date... Table 4: Predicted total crop yield calculated from the area covered by each colour zone by the measured hand sample...
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