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Catalogue: GRDC Updates
Market deregulation, the emergence of the container trade, a shortage of malting barley, and price sensitive export markets have led to a wider range of variety and marketing options for growers in NSW. Schooner and Gairdner have been the preferred malting barley varieties in central NSW, with smaller areas of Baudin and some Fitzroy in the north... Overall, the results emphasise the need to sow varieties that have short coleoptiles at shallow depths and to take care with seed grading and the use of seed dressings... The ability of varieties to tolerate these conditions was assessed in a trial at Condobolin in 2008...
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Catalogue: GRDC Updates
The extra water used by a well grown crop can reduce drainage volumes and reduce nitrogen exports, even if fertiliser is used to achieve that extra growth... : The lowest upfront application of nitrogen that facilitates reasonable crop establishment and yield potential minimises nitrogen exports, minimises sunk costs (i.e. costs which cannot be recovered) in the case of an adverse season, and allows the farmer the flexibility to adjust their fertiliser strategy, and potential gross margins in response to seasonal conditions... Nutrients such as N, that may be exported dissolved in water (i.e. nitrate), often comprise a larger proportion of total exports when compared with systems using deep cultivation (>250 mm) (Kimmell et al., 2001)...
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Catalogue: GRDC Updates
The trials aimed to see if there is any benefit in using liquid instead of solid P and to see if the volume of water used to apply liquid P has an influence on yield by increasing the volume of soil in which the P is distributed at higher water rates... A second trial at each site compared a range of commercial forms of starter P. Data for sorghum is presented ... In the trials liquid forms of P showed no advantage either economically or agronomically over soild forms of P. The Kelvin site showed an obvious response to the highest rate of liquid P which we believe to be due to the placement rather than the form...
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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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Catalogue: GRDC Updates
A crop production system involving brown manure legumes, can be as profitable as continuous cropping, but even if slightly less profitable, has considerably less production and financial risk due to lower input and operating costs... The annual trading results measured by EBIT (Earnings before Interest and Tax) and three key financial ratios are shown in Table 3... Actual farm data from recent years, suggests that a crop production system comprising brown manure legumes, canola, wheat and barley, can be as profitable as continuous cropping, but with less production and financial risk...
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Catalogue: GRDC Updates
Including a legume pulse manure phase as well as a pulse in my continuous crop system is the plan for the future to provide 'home grown' organic nitrogen... The right pulse selection will provide a cash return as well as benefiting future crops... A pulse manure has many benefits and will add robustness and more balance to Neil's system as a manure phase mimics a pasture in that it can produce up to 200 kg/N/ha, providing background nitrogen for about 2 cereal crops as well as opportunities for IWM and a moisture conserving fallow...
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Catalogue: GRDC Updates
Timely application of N can improve yield and protein of a wheat crop (Hill 2005)... The use of precision sowing to plant into the ridge of the previous season will influence crop behaviour... It is suspected that the application of results from this trial may be limited to the deep sandy earth sand plain soils in the medium rainfall zone...
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Catalogue: GRDC Updates
Background Many farmers in southern NSW, particularly younger ones, have switched from traditional mixed farming to a more intensive farming systems involving no livestock at all... Farm data from properties which have adopted brown manure peas, have shown 25 - 30% yield increases for both canola and wheat crops grown in the two years following brown manure pea crops... The trading results measured by EBIT (Earnings before Interest and Tax) and three key financial ratios are shown in Table 3...
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Catalogue: GRDC Updates
In a trial at Trangie Agricultural Research Centre over two seasons (2011 and 2012) the grain yield and grain protein concentration of EGA Gregory wheat following chickpeas was similar to wheat following canola that was fertilised with 46 kg/ha N. The application of 46 kg/ha N in June 2012 to the wheat significantly increased the 2012 wheat yield by 400 kg/ha and 1.4 % protein regardless of previous crop (Figure 2)... For dry matter measured at maturity (GS99), there was a significant increase for the 25 kg/ha N rate compared with the nil rate, with no further increase in dry matter from increased N applications above 25 kg N/ha... At Coonamble, grain yield of eight wheat varieties was maximised at a grain protein concentration of 9 % (Figure 5a), with 100 kg/ha N required to raise grain protein by 2 % but also reduce yield by 250 kg/ha...
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Catalogue: GRDC Updates
The loss to the wheat industry from these two nematode species has been estimated at $AU47 million/year for the northern region and $123 million for all Australia, based on average wheat production and price of $AUD239/tonne over a 10-year period to 2008 (Murray and Brennan 2010)... In order to obtain better sources of resistance to P. thornei we have screened two collections of wheat landraces from that area... We have also found resistance to P. thornei in a collection of wheat landraces made in in the early 1930's (Sheedy and Thompson 2009)...
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