yield benefit

Until such varieties are released, northern growers and advisers need to select varieties firstly on the basis of crown rot risk and then manage for stripe rust ... There is a risk of WSMV being spread through infected seed into new areas... We have not been able to determine an economic threshold for RGB in sorghum from these trials...

Until such varieties are released, northern growers and advisers need to select varieties firstly on the basis of crown rot risk and then manage for stripe rust ... There is a risk of WSMV being spread through infected seed into new areas... We have not been able to determine an economic threshold for RGB in sorghum from these trials...

Growers have been busy in recent weeks applying lime to paddocks as part of ongoing efforts to overcome soil acidity and maximise their farm's potential... There is no doubt that lime can improve yields on acidic soils and is a preventative treatment to maintain soil pH at acceptable levels... "In the trials we assessed whether investment in fertiliser needs to be cut to achieve a profit from lime incorporation and, overall, the answer was no...

Grower adoption and implementation of strategies to manage soil water repellence in farming systems.. No detailed time-series soil surveys have been conducted to confirm the perception that water repellence is increasing the expression of the constraint is easier to diagnose than most because of the obvious nature of the impacts on establishment, water infiltration and variable soil wetting... The grower intends to continue mouldboard ploughing and using the paired row seeder which is also a good implement for seeding ploughed areas...

Long fallow increases soil water at sowing which in turn increases yield on good water holding capacity soils, particularly when the growing season rainfall is low (<210mm) and the summer rainfall was low (<100mm).. On good water holding capacity soils, 22-29% of years following long fallow had an average yield increase of 0.46-0.59 t/ha at Dalwallinu, 39-47% of years had an average yield increase of 0.49-0.82 t/ha in Perenjori while at Merredin 37-60% of years had a 0.51-0.76 t/ha yield increase... From other modelling work the increase stored mineral N from a fallow is 40-70 kg N/ha (Farre et al, 2012)...

Stripe rust has emerged as an important regional disease in northern NSW and southern Qld in the last 5 years primarily due to more virulent pathotypes and an increase in the number of susceptible wheat varieties grown... Included in the trial were 6 different fungicides with nearly all at the low and high label rates... Table 3 highlights the improvement in economics when the fungicide can be applied with another planned operation...

Early or preventative foliar sprays, applied from GS32 onwards on moderately susceptible varieties, have provided the best returns in northern trials over the last three years High grain prices and low fungicide costs mean breakeven yield benefits required are often only 1-2% Application can be the major cost of treatment Consider timing when stripe rust in area but not in crop or in tank mixture with a late herbicide, near GS32, to eliminate extra application cost.. Fungicide recommendations for stripe rust management have been based on disease threshold levels on specific leaves... Recent northern evaluation by QDPI&F, NSW DPI and NGA has confirmed that the most effective management of stripe rust will be achieved by spraying at or just prior to disease becoming evident in a crop...

Stripe rust management Prevention is generally best - Grains Research &amp; Development Corporation </title> <meta name="GRDC.Tags" value=""> <meta name="Keywords" value="Wheat, stripe rust, leaf disease, fungicides, yield, 0, Stripe rust management Prevention is generally best"> <meta name="Description" value=" Richard Daniel, Northern Grower Alliance (NGA) &bull; Early or preventative foliar sprays, applied from GS32 onwards on moderately susceptible varieties, have provided the best returns in northern trials over the last three years &bull; High grain prices and low fungicide costs mean breakeven yield benefits required are often only 1-2% &bull; Application can be the major cost of treatment &bull.. Fungicide recommendations for stripe rust management have been based on disease threshold levels on specific leaves... This was a sensible strategy given high fungicide costs, low grain prices and the need for higher levels of yield benefit to generate economic returns...

Long fallow increases soil water at sowing which in turn increases yield on good water holding capacity soils, particularly when the growing season rainfall is low (<210mm) and the summer rainfall was low (<100mm).. On good water holding capacity soils, 22-29% of years following long fallow had an average yield increase of 0.46-0.59 t/ha at Dalwallinu, 39-47% of years had an average yield increase of 0.49-0.82 t/ha in Perenjori while at Merredin 37-60% of years had a 0.51-0.76 t/ha yield increase... From other modelling work the increase stored mineral N from a fallow is 40-70 kg N/ha (Farre et al, 2012)...

Growers have been busy in recent weeks applying lime to paddocks as part of ongoing efforts to overcome soil acidity and maximise their farm's potential... There is no doubt that lime can improve yields on acidic soils and is a preventative treatment to maintain soil pH at acceptable levels... "In the trials we assessed whether investment in fertiliser needs to be cut to achieve a profit from lime incorporation and, overall, the answer was no...