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Minimum tillage

Catalogue: Ground Cover
The Agronomy Jigsaw project in the Esperance region could help growers who are grappling with appropriate water use for different soil types... "Techniques used in these surveys - electromagnetic induction and gamma radiometrics - can tell us about underlying soil properties, which can help us predict the amount of water available to plants in the soil. ".. The project has a number of field trials using soil ameliorants, such as gypsum and lime, to increase plant-available water and potentially improve water use efficiency," he says...
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Catalogue: GRDC Factsheets
nORTHERn REGIOn Converting rainfall to grain Increasing the amount of water stored in fallows is an important strategy in managing the risks associated with highly variable rainfall in the northern region to improve water use efficiency and potential crop yields... Water use efficiency relies on: the soil's ability to capture and store water; the crop's ability to access water stored in the soil and rainfall during the season; the crop's ability to convert water into biomass; and the crop's ability to convert biomass into grain (harvest index)... Conversion factors for a range of crops and soils are available (see Soil matters under 'Useful resources', page 6); the software program 'HowWet' can be used to estimate PAW during a fallow period from daily rainfall figures input by the user (www.apsim.info); and PAW at the end of a fallow can be estimated directly from fallow rainfall using an estimate of fallow efficiency (FE)...
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Catalogue: GRDC Research Summaries
Stopping weed growth in the fallow can lead to yield increases in the following crop via several pathways... Reduced levels of diseases vectored by aphids that build in numbers on summer weeds, and.. While many factors in uence how much plant available water is stored in a fallow period, good weed management consistently has the greatest impact...
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Catalogue: GRDC YouTube channel
" Using soil moisture probes to make better farming decisions 20 November 2014 South Australian grain grower Tom Robinson, Halbury, talks about his experiences using soil moisture probes on the family farm... The way 139.189: I'm looking at it now is that possibly we might be able to grow a winter cover crop 143.049: to make more ground cover and also have a diverse mix of a cover crop in there, and 148.4: then we'll kill that crop and then sow sunflowers into it... We're drying out 166.43: our profile; by having a winter cover crop we're growing more cover, more ground cover; 171.769: we're creating more diversity; we're getting a legume back into our system; and then we're 176.209: also able, by doing that, to grow a different crop, a summer crop, which is hopefully better 183.7: for our end goal which is soil health...
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Catalogue: GRDC Factsheets
nORTHERn REGIOn Converting rainfall to grain Increasing the amount of water stored in fallows is an important strategy in managing the risks associated with highly variable rainfall in the northern region to improve water use efficiency and potential crop yields... Water use efficiency relies on: the soil's ability to capture and store water; the crop's ability to access water stored in the soil and rainfall during the season; the crop's ability to convert water into biomass; and the crop's ability to convert biomass into grain (harvest index)... Conversion factors for a range of crops and soils are available (see Soil matters under 'Useful resources', page 6); the software program 'HowWet' can be used to estimate PAW during a fallow period from daily rainfall figures input by the user (www.apsim.info); and PAW at the end of a fallow can be estimated directly from fallow rainfall using an estimate of fallow efficiency (FE)...
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Catalogue: GRDC Factsheets
nORTHERn REGIOn Converting rainfall to grain Increasing the amount of water stored in fallows is an important strategy in managing the risks associated with highly variable rainfall in the northern region to improve water use efficiency and potential crop yields... Water use efficiency relies on: the soil's ability to capture and store water; the crop's ability to access water stored in the soil and rainfall during the season; the crop's ability to convert water into biomass; and the crop's ability to convert biomass into grain (harvest index)... Conversion factors for a range of crops and soils are available (see Soil matters under 'Useful resources', page 6); the software program 'HowWet' can be used to estimate PAW during a fallow period from daily rainfall figures input by the user (www.apsim.info); and PAW at the end of a fallow can be estimated directly from fallow rainfall using an estimate of fallow efficiency (FE)...
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Catalogue: Ground Cover
Subsoil manuring drives up HRZ profits.. Pros: crop yields are increased; rainfall capture and use can be improved; effects are long-lasting - four years or sometimes more; and savings can be made on nitrogen fertiliser... Yield increases in the trial ranged from 2 to 5t/ha in wheat and 1 to 2t/ha in canola, at the full manure application rate and where a successful crop was established (see Table 1 )...
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Catalogue: GRDC Updates
With increasing interest in obtaining real-time information on soil water status and increasingly limited labour to undertake intensive gravimetric monitoring a study was undertaken to investigate technologies with potential to improve delivery of information to farmers on the cracking clay soils... A suite of readily available monitoring technologies were evaluated for their ability to accurately measure soil water across the range of moisture contents, suitability for use on cracking clay soils and appropriateness for deployment in commercial agriculture... Conclusions and recommendations a) Devices for soil monitoring: In-situ devices that have relatively small zones of measurement and rely on good soil/sensor contact to measure soil water are at a disadvantage in shrink/swell soils where soil movement and cracking are typical...
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Catalogue: Ground Cover
Tom Robinson says data from soil moisture probes has helped determine target yields on his family's property at Halbury, South Australia... Mr Wilksch, who specialises in the installation and management of soil moisture probes, says the probes have extremely accurate sensors every 10 centimetres, which tell the grower where the moisture is in the soil profile and from where the plant roots are actively drawing moisture... Mr Wilksch says the three management areas in which probes help decision-making are when and what to plant, nitrogen and other nutrient decisions, and during spring when it is possible to estimate yield based on the amount of plant-available water in the profile...
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Catalogue: Ground Cover
Tom Robinson says data from soil moisture probes has helped determine target yields on his family's property at Halbury, South Australia... Mr Wilksch, who specialises in the installation and management of soil moisture probes, says the probes have extremely accurate sensors every 10 centimetres, which tell the grower where the moisture is in the soil profile and from where the plant roots are actively drawing moisture... Mr Wilksch says the three management areas in which probes help decision-making are when and what to plant, nitrogen and other nutrient decisions, and during spring when it is possible to estimate yield based on the amount of plant-available water in the profile...
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