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windrow timing

Catalogue: GRDC Factsheets
EARLY PLANNING KEY TO DIRECT HEADING Many grain growers fear that direct heading canola is risky and that high shattering losses are inevitable... Yield losses due to shattering while direct heading are likely to be lower than yield losses associated with windrowing a crop too early, such as a week or more before 40 to 60 per cent of seeds on the main stem have changed colour... Direct heading is not suited to paddocks with significant variations in soil type and/or topography - factors that affect plant-available water and plant maturity...
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Catalogue: GRDC Factsheets
direct heading allows for maximum yields if canola is harvested on time and the header is set-up correctly to avoid shattering... yield losses due to shattering while direct heading are likely to be lower than yield losses associated with windrowing a crop too early, such as a week or more before 40 to 60 per cent of seeds on the main stem have changed colour... Direct heading is not suited to paddocks with significant variations in soil type and/or topography - factors that affect plant-available water and plant maturity...
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Catalogue: GRDC Updates
Over the past three seasons Grain Orana Alliance (GOA) has undertaken six trials to help examine the impact of windrowing timing on oil, yields and profitability... Yields were measured with mobile weigh bins with the exception of Nyngan which was weighed over a weighbridge... Warren 2011 the trial compared a single windrowing timing at 85% colour change to direct heading with a draper header front fitted with a finger reel and top auger...
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Catalogue: GRDC Updates (South)
Supported by Research Update sponsored by.. In summary there was no "concerning" level of seed loss observed at any trial or timing, correlating well with the yield data... In summary, yield loss as a result of delayed windrow timing assumedly through shattering has not been demonstrated except in one extreme case with very late timings with colour change in excess of 100%...
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Catalogue: GRDC Media
Grain Orana Alliance (GOA) chief executive Maurie Street says each weed variety has a critical temperature to burn at, for the seed to be destroyed - for example, ryegrass seeds must burn at 400 o C for at least 10 seconds to be effectively destroyed... Mr Street said the right preparation through harvest and choosing the right time and conditions to burn were the keys to ensuring a successful burn... "Burning when the weather is too hot increases the chance of fire escapes, but burning when it is too cold can mean the critical temperatures for seed kill is not achieved," Mr Street said...
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Catalogue: GRDC Updates
Keywords: canola, windrowing, windrow, swathe, timing, direct head, shattering, yield loss, harvesting loss, desiccation, Pod Ceal TM.. Windrowing timing can have a significant positive impact on yield and profitability of canola... Yields of the whole treatment areas were measured with mobile weigh bins with the exception of Nyngan which was weighed over a weighbridge...
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Catalogue: GRDC Updates
Windrowing timing within an acceptable window has no impact on oil% in canola... Windrowing timing can have a significant positive impact on yield and profitability of canola... The work has shown that windrowing timing can a have a significant impact on yield over very short periods...
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