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wheat grain yield

Catalogue: GRDC Updates
The comparisons represent the general farming system and evolution in management over the last 30 years of many progressive grain growing farms in low-rainfall regions of Australia... The largest increase to yield and water-use efficiency was achieved by improved summer weed management (Scenario 3)... A wheat variety with a long coleoptile gives a large yield increase in combination with the other management improvements (Scenario 6)...
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Catalogue: GRDC Updates (South)
Stubble and fallow management are key determinants of survival, infection and yield loss from CR. Burning wheat residue has been promoted as one option for the control of CR... Delaying the onset of stripe rust within a crop is the key to significantly reducing the risk of yield loss to this disease in 2005... Stripe rust specific seed treatments are not required and crops should simply be monitored early for the development of stripe rust and a foliar fungicide applied if severe early infection warrants it...
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Catalogue: Ground Cover
Experience builds strategies for water-repellent soil.. Recent research indicates that some formulations only work on certain soil types, such as the forest loamy gravels or on firmer soils with reasonable clay content, and are less effective on repellent sands... The results indicate a 55 per cent chance of achieving a yield increase of 400kg/ha or more in year one...
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Catalogue: GRDC Final Reports
Stubble burning reduced soil carbon (C) stocks, partly through increased susceptibility to erosion... Grain head counts in September 2009 indicated significantly greater yield potential under stubble retention and zero-till compared with other treatments (Fetherstonhaugh site)... Grain yields under stubble retention and zero-till were slightly higher than in the other treatments (Fetherstonhaugh site)...
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Catalogue: GRDC Updates (West)
P4/S9 and P2/S4 were the two most profitable sequences and, overall, the 'maximum profit - P4' philosophy had the highest mean gross margin... It is logical that those growers that have chosen to have no livestock will have no interest in trialling grazing crops... Overall, the data has indicated that for the biserrula inoculant all of the carrier's have difficulties in carrying enough live rhizobia numbers to adequately nodulate the legume hosts after 3-4 months of dry, hot soil...
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Catalogue: GRDC Updates
The rotational benefits of canola were usually restricted to just the first subsequent wheat crop, whereas additional wheat yields can occur for 2 years after a legume... Gross margins achieved on-farm for wheat in 2011 may have been lower than shown in Table 2... The gross margin calculations depicted in Figure 5 assumed that canola yielded 50 % of wheat at that site in that year...
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