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direct heading

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Catalogue: Ground Cover
The decision about whether to windrow or direct head canola typically comes down to a complex combination of risk management and economic and seasonal factors... According to NSW agronomist Kathi Hertel, the timing of direct heading and windrowing can have a substantial effect on the value of the crop being harvested... If yield is compromised by more than three to six per_cent by factors such as timing, shattering or wind damage, then the difference in cost is negated...
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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 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
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...
Related categories:
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...
Related categories:
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: Ground Cover
Factors for making the switch to direct heading canola.. Grain Orana Alliance chief executive officer Maurie Street says growers may be able to improve canola yields through direct heading... "Growers can windrow most of their crop as normal, but then try direct-heading in a paddock or two and assess for themselves how well it works," Mr Street says...
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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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