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soil nitrogen reserve

Catalogue: GRDC Publications
Influence of fungicide rate (mean of fungicide products - four site mean) Stem rust control assessed over the four trial sites revealed that using high rates was essential for the control of the disease, even if the fungicide had been applied prophylactically (before infection was visible in the crop)... Influence of cultivar resistance and fungicide application (Prosaro ) on yield and stem rust severity measured on the flag sheath 18 days after fungicide application at early dough (GS82) and assessed at mid dough - physiological maturity (GS85-90) - Bairnsdale, Gippsland, Victoria, 2010... The yield potential for the crop with no nitrogen applied is estimated at GS30 from the results of numerous of trials conducted in that region where NDVI at GS30 is divided by the number of growing degree days (GDD) greater than 0 C since planting, referred to as the INSEY units (in season estimate of yield)...
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Catalogue: GRDC Factsheets
Understanding and applying the principles of canopy management, allows decisions on the most profitable use of inputs and the most appropriate target yield to be made... Applying nitrogen (N) or fungicide at stem elongation increases the opportunity to match input costs to the potential yield for that season... The visual difference can be quantified by using crop sensors that measure the light reflectance from the crop canopy...
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Catalogue: GRDC Factsheets
Understanding and applying the principles of canopy management, allows decisions on the most profitable use of inputs and the most appropriate target yield to be made... Applying nitrogen (N) or fungicide at stem elongation increases the opportunity to match input costs to the potential yield for that season... The visual difference can be quantified by using crop sensors that measure the light reflectance from the crop canopy...
Related categories:
Catalogue: GRDC Factsheets
Understanding and applying the principles of canopy management, allows decisions on the most profitable use of inputs and the most appropriate target yield to be made... Applying nitrogen (N) or fungicide at stem elongation increases the opportunity to match input costs to the potential yield for that season... The visual difference can be quantified by using crop sensors that measure the light reflectance from the crop canopy...
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Catalogue: Ground Cover
Trials have shown significant denitrification in summer after post-harvest mineralisation of crop residues such as chickpea crops and canola... In 'normal' dry years, losing soil nitrate through denitrification is a relatively small problem - a bigger issue now is the slowly declining soil nitrogen reserves across the region, especially after multiple above-average yields... Wet summers increase the potential to lose nitrogen through the natural process of denitrification, so the potential for losses is higher under those conditions...
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