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soil fertility

Catalogue: GRDC Media
"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... Dr Scanlan said growers considering reducing fertiliser application and cultivating soils to incorporate lime needed to consider a few factors to assess if it would provide short and long-term economic benefits... "Finally, the cultivation implement needs to be able to mix to the depth where the soil pH constraint occurs to produce an immediate payback on lime and cultivation...
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Catalogue: GRDC Media
Guidelines developed for lime incorporation.. Researchers have developed initial parameters to guide Western Australian farmers who may be considering cultivating acidic soils to incorporate lime prior to seeding crops in 2014... "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...
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Catalogue: GRDC Updates
Investigations of animal performance of sheep grazing dual-purpose wheat in southern found 2-fold variations in growth of lambs (daily gains between 0.5-1.0% of liveweight)... Overall, supplementation increased the beef production per hectare by 92 kg and increased returns by $246 at a cost of $22/ha (i.e. 6 c/hd/day)... Differences in the experiment were that stock did not consume the supplement as readily as in the previous experiment, growth rates were already extremely high, averaging 1.6 kg/hd/day in the unsupplemented treatment...
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Catalogue: GRDC Updates
The paper outlines the opportunities to optimise sheep and beef cattle production from mixed livestock and cropping enterprises and maximise farm profitability... We observe that higher stocking rates are achieved in livestock enterprises that are run in conjunction with cropping... To highlight opportunities with good animal health control a recent study undertaken by the Mackinnon Project, demonstrated that the difference in growth rates between good and poor worm control of weaned calves was over 30 kg/head over a six month period...
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Catalogue: GRDC Media
Central Queensland wheat growers have seen low protein levels in this season's crop with the likely causes stemming from the long wet season of 2010-11... These include: low starting soil nitrogen as a consequence of low organic carbon (less mineralised nitrogen) and denitrification; applied bag nitrogen still being close to the surface and not located in moisture where the wheat plant roots could easily access it; crops growing poorly and unable to exploit all the available soil nitrogen; leaching; and soil erosion losses... Log in or register to leave a comment...
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Catalogue: Broadacre Field Crops DAFF QLD
It is grown to produce high quality hay and provide high protein forage for grazing... Lucerne supplies quality hay for animals in intensive systems... Lucerne can improve soil N fertility on run-down soils and will improve wheat yield and elevate grain quality to prime hard for a number of years, when the land is returned to crop...
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Catalogue: Broadacre Field Crops DAFF QLD
It is grown to produce high quality hay and provide high protein forage for grazing... Lucerne supplies quality hay for animals in intensive systems... Lucerne can improve soil N fertility on run-down soils and will improve wheat yield and elevate grain quality to prime hard for a number of years, when the land is returned to crop...
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Catalogue: Broadacre Field Crops DAFF QLD
It is grown to produce high quality hay and provide high protein forage for grazing... Lucerne supplies quality hay for animals in intensive systems... Lucerne can improve soil N fertility on run-down soils and will improve wheat yield and elevate grain quality to prime hard for a number of years, when the land is returned to crop...
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Catalogue: GRDC Updates
Feedlot manure can provide half price nutrients.. With around 450,000 cattle on feed in Queensland, there is close to 500,000 tonnes of manure to be utilised as fertiliser each year... Potassium: K There is more than enough K when manure is used to supply P. Sorghum yielding 5 t/ha, has K removal around 22 kg/ha/yr, which means 170 kg of K in 10 t/ha of manure would last 7 years...
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Catalogue: GRDC Media
Manures prove their worth in a fertiliser program.. Manures can be a cost effective means of supplementing traditional in-organic fertilisers to help replace nutrients such asnitrogen (N) and phosphorus (P) which are extracted from the soil during a crop's growth cycle and removed from the paddock in grain... Manures from beef cattle feedlots and poultry farms are increasingly being used to supplement traditional in-organic fertilisers in helping replace nutrients such as nitrogen (N) and phosphorus (P) which are extracted from the soil during a crop's growth cycle and removed from the paddock in grain...
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