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Nutrition and fertiliser

Catalogue: NVT Online Papers
Early work on canola focused on weed management strategies including the breeding of herbicide tolerant canola varieties such as triazine tolerant (TT) varieties which now account for an estimated 90% of canola grown in WA... Research is still being conducted to determine the effect of these viruses on the yield of canola in WA. European work has found seed yield losses of 10-15% associated with this virus disease in canola... The amount of air passed through the grain is measured in litres per second per tonne and varies depending on the particular aeration strategy...
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Catalogue: GRDC Publications
GRDC Grains Research Update Coonabarabran, February 2014 grain protein levels in the untreated were below 12% in all trials... Understanding how the reserves present in more than half of soils release P is important... Soils with <60 mg/kg BSES P may not be able to replenish available P pools easily, and this corresponds with two thirds of those soils investigated in the Queensland study...
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Catalogue: GRDC Media
Rural Management Strategies consultant Chris Minehan says using Yield Prophet and plant available water capacity mapping to manage nitrogen can be more profitable than applying a blanket rate... Recent research conducted by Rural Management Strategies in New South Wales has found that managing nitrogen separately across varying soil types using Yield Prophet and plant available water capacity (PAWC) mapping can be more profitable than applying a blanket rate of nitrogen due to savings in fertiliser costs... During the 2013 and 2014 winter cropping seasons, the Grains Research and Development Corporation (GRDC) funded trials at Barmedman to demonstrate the use of Yield Prophet and PAWC mapping to improve nitrogen decision-making in wheat and canola...
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Catalogue: GRDC Media
Rural Management Strategies consultant Chris Minehan says using Yield Prophet and plant available water capacity mapping to manage nitrogen can be more profitable than applying a blanket rate... Recent research conducted by Rural Management Strategies in New South Wales has found that managing nitrogen separately across varying soil types using Yield Prophet and plant available water capacity (PAWC) mapping can be more profitable than applying a blanket rate of nitrogen due to savings in fertiliser costs... During the 2013 and 2014 winter cropping seasons, the Grains Research and Development Corporation (GRDC) funded trials at Barmedman to demonstrate the use of Yield Prophet and PAWC mapping to improve nitrogen decision-making in wheat and canola...
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Catalogue: NVT Online Papers
Canola is often windrowed to ensure all pods are mature at harvest... In summary, windrowing too early can result in lower yields and oil contents and too late will lead to shattering losses... Canola is sold into a deregulated domestic market and the responsibility of finding an acceptable price and arranging a buyer rests with the grower...
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Catalogue: GRDC Publications
Canola is often windrowed to ensure all pods are mature at harvest... In summary, windrowing too early can result in lower yields and oil contents and too late will lead to shattering losses... Canola is sold into a deregulated domestic market and the responsibility of finding an acceptable price and arranging a buyer rests with the grower...
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Catalogue: GRDC Updates (West)
Barley agronomy highlights: Time of sowing x variety Blakely Paynter1and Andrea Hills,2 Department of Agriculture and Food, Western Australia; Northam 1and Esperance 2.. x New feed barley options are becoming available that out yield current feed barley varieties... Kojonup may not be suitable for seasons or environments where low in-crop rainfall is experienced...
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Catalogue: GRDC Updates
The nitrogen recovery in grain was calculated for all treatments (yield t/ha x protein % x 1.75)... The data from the trials was inconclusive in determining an optimal growth stage for application although the highest protein result was achieved from application during late head emergence to early milk at seven of the eleven sites... Although early application of additional nitrogen can cause canopy management issues, these results (in years with erratic or low spring rainfall) support the need to get nitrogen on early...
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Catalogue: Ground Cover
On-farm trials at Corrigin, WA, exploring wheat protein responses to nitrogen applications at different rates and times... Risk-averse growers tend to be conservative in their use of nitrogen... Split application "Split application improves the recovery of applied nitrogen, and if some of your nitrogen is applied after the beginning of stem elongation you are more likely to get a response in protein than if all the nitrogen is applied at sowing," Dr Milroy says...
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Catalogue: Ground Cover
Trial studying the timing of late nitrogen applications in wheat post-flowering at Brookstead, Queensland... Figure 1 Mean impact of late foliar application of nitrogen on grain protein in 2012... "The trials clearly showed that late foliar applications of nitrogen are capable of lifting protein levels but we were generally unable to generate any net benefit," he says...
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Assigned key phrases

acidity (10)
fertiliser (261)
nitrogen (353)
nitrogoen (3)
nutirition (99)
nutrient (109)
nutrients (6)
nutrition (81)
phosphate (146)
phosphorous (124)
phosphorus (88)
potassium (124)
rhizobium (27)
sodium (11)
sulfur (35)
sulphur (13)