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soil nitrate level

Catalogue: GRDC Media
Crown rot is likely to rear its head once again this year growers can minimise its impact on yield potential by undertaking a paddock disease assessment prior to planting, selecting appropriate varieties and knowing seed purity... Crown rot is caused by the fungus Fusarium pseudograminearum and is one of the most serious disease threats to winter cereal crops in Australia... The DNA-based soil testing service PreDicta B is a reliable medium for identifying the level of risk for crown rot and other soil-borne pathogens prior to sowing but it is important to remember that using the correct sampling technique is critical to its accuracy...
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Catalogue: GRDC Media
Plan ahead to keep crown rot at bay.. Crown rot is likely to rear its head once again this year growers can minimise its impact on yield potential by undertaking a paddock disease assessment prior to planting, selecting appropriate varieties and knowing seed purity... Crown rot is caused by the fungus Fusarium pseudograminearum and is one of the most serious disease threats to winter cereal crops in Australia...
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Catalogue: GRDC Updates
Figure 1 Output page of NBudget showing the 6 steps to estimate crop yields for all 6 crops and fertiliser N requirements for bread wheat, durum, barley and canola for the coming season.. Potential grain yields for the other crops were calculated by multiplying the potential wheat yields by constants - 1.05 for durum, 1.33 for barley, 0.50 for canola, 0.64 for chickpea and 0.80 for fababean... To answer the question, we used BOM rainfall data in "NBudget' to simulate cropping of wheat in 2009 and chickpea in 2010, grown under no-till and cultivated systems...
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Catalogue: GRDC Factsheets
Nitrogen fixation by crop legumes reduces the need for fertiliser nitrogen (N) and emissions of nitrous oxide... Benefits from legumes can be maximised by using high-yielding legume varieties that are not constrained by poor management, insects, disease, weeds or nutrient deficiencies... amounts of n Nitrogen fixation by crop legumes has now been estimated in many studies...
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Catalogue: GRDC Factsheets
Nitrogen fixation by crop legumes reduces the need for fertiliser nitrogen (N) and emissions of nitrous oxide... Benefits from legumes can be maximised by using high-yielding legume varieties that are not constrained by poor management, insects, disease, weeds or nutrient deficiencies... amounts of n Nitrogen fixation by crop legumes has now been estimated in many studies...
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Catalogue: Broadacre Field Crops DAFF QLD
A crop field showing nitrogen deficiency.. The books outline the range of tools that are available to assist growers to manage nitrogen and climate risk for maximum yields and to address soil fertility decline... The amount of nitrogen added will be in proportion to the quantity of vegetative material returned to the soil which in turn is influenced by the seasonal conditions...
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Catalogue: Broadacre Field Crops DAFF QLD
A crop field showing nitrogen deficiency.. The books outline the range of tools that are available to assist growers to manage nitrogen and climate risk for maximum yields and to address soil fertility decline... The amount of nitrogen added will be in proportion to the quantity of vegetative material returned to the soil which in turn is influenced by the seasonal conditions...
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Catalogue: Broadacre Field Crops DAFF QLD
A crop field showing nitrogen deficiency.. The books outline the range of tools that are available to assist growers to manage nitrogen and climate risk for maximum yields and to address soil fertility decline... The amount of nitrogen added will be in proportion to the quantity of vegetative material returned to the soil which in turn is influenced by the seasonal conditions...
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Catalogue: GRDC Updates
Changes to agronomy can change N fixation in grain legumes.. Work by Doughton et al. (1993) clearly demonstrated the impact of increasing soil nitrate levels on N fixation of chickpeas (see Figure 1), with no yield advantage being gained by applying N... Field trials with summer (mungbean) and winter pulses (chickpea) were grown in 2013 in Queensland to examine the effects of varying agronomic factors on the growth, yield and N fixation of the pulses...
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