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water infiltration

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Catalogue: GRDC Factsheets
Clay spreading or delving can significantly improve yields of sandy soils but it is vital that the process is performed correctly... Poor root exploration into the subsoil caused by a distinct separation between the spread/delved soil and the layer below and by not addressing fertility and low plant available water in bleached subsoils... The clay content of a soil can be estimated by taking a handful of the soil, adding water and working it into a ball until it is smooth, and then squeezing it out into a ribbon about 2-3 millimetres thick...
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Catalogue: GRDC Research Summaries
" Improved fallow management to maximize water infiltration and retention through better ground cover management and summer weed control Project Code: IMA00006 < Keep browsing..
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Catalogue: GRDC Research Summaries
The project will link and integrate with another project on non-wetting soils 'Delivering agronomic strategies for water repellent soils in Western Australia' led by Dr Stephen Davies at DAFWA... The main focus of this project "Novel solutions for managing non-wetting soils", is to explore managements that promote water infiltration into non-wetting soils and increase crop production and profitability... At the beginning of the project a review will be done of current knowledge on strategies to manage non-wetting soils, including published research reports, grower knowledge and unpublished DAFWA reports...
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Catalogue: GRDC Research Summaries
The project will link and integrate with another project on non-wetting soils 'Delivering agronomic strategies for water repellent soils in Western Australia' led by Dr Stephen Davies at DAFWA... The main focus of this project "Novel solutions for managing non-wetting soils", is to explore managements that promote water infiltration into non-wetting soils and increase crop production and profitability... At the beginning of the project a review will be done of current knowledge on strategies to manage non-wetting soils, including published research reports, grower knowledge and unpublished DAFWA reports...
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Catalogue: Ground Cover
Subsoil phosphorus deficiencies identified in long-term research across the northern grain-growing region have spurred a new approach to fertiliser application for the Black family at Brookstead in south-east Queensland... The Blacks - brothers Laurie and Jim, along with Jim's son Peter - have invested in an Orthman (1tRIPr) strip tillage machine designed to cultivate the seedbed and place fertiliser down to a depth of 20 centimetres in the soil... The aim is to address phosphorus deficiency in the subsoil, as opposed to the topsoil, which research has revealed is limiting yields by between 10 and 20 per cent on their 1618-hectare cotton and grain property...
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Catalogue: GRDC YouTube channel
The incorporation of chicken manure into heavy clay subsoil in the southern grain region's high rainfall zone has help increase plant available water and increase crop yields... In terms of water, 248.41: the water was measured through neutron moisture metres and we found during Summer fallow period 257.799: the soil was able to store more water almost three times the amount of water that the control 263.18: treatments were able to hold and that amount of water was available to the crops during 269.349: grain fill... 340.999: Renick Peries: We tend to recommend to people that they do 344.689: it in February - March but sometimes if you have a dry season you can extend that to say 350.83: April 351.339: Narrator: Yaloake Estate is so convinced by their own 354.139: results they 360.089: 20 tonnes of chicken manure per hectare at 40 cm depth to make sure its in the clay layer...
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Catalogue: Nuffield Scholar Reports
The report proposes the idea that saline water, defined as having an electrical conductivity greater than 1.5 deciSiemens per metre (dS/m) (960 parts per million), has a part to play in filling the void of future losses of surface water... The aim of the report is to investigate if saline water can be successfully used without desalination, and what practices are required to reduce the effects of it on the crops and catchments they are applied to... Drip irrigation systems were by far the most common irrigation system using saline water...
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Catalogue: GRDC YouTube channel
" GCTV10: Grazing Stubbles and Water Use Efficiency 03 May 2013 Getting the benefits of stubble retention while keeping sheep in the farm's mix 0.52: GCTV Ep#10 Grazing Stubbles (Water Use Efficiency Initiative) 18.29: Narrator: When GRDC supports research the expectation 23.01: is the outcomes will result in change on-farm... 99.929: Any rainfall events that did occur the sheep were there to control the weeds when they 103.88: were young and also it was a great feed value for the sheep over that time, we gave the 109.509: pastures a break over the summer time so the land was there we used it, utilised it for 116.739: the livestock... 398.669: James Hunt: As long as you obey those rules which 403.05: are that you always control summer weeds and you always keep 70% of cover on paddocks at 409.039: all times you ll still get good fallow efficiency so 70% is enough to prevent wind erosion, 416.379: water erosion and maximise infiltration so as long as you do that you can graze sheep 422.3: on stubbles but once you start breaking those rules you will compromise yields...
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Catalogue: GRDC Final Reports
The expression of water repellency under different tillage and stubble managements was evaluated to investigate anecdotal evidence that repellency disappears under zero-tillage and stubble retention... The results highlight the importance of evaluating water infiltration in the field to take into account not just the physical repellency of the soil, but to include all possible mechanisms of water entry... The results highlight the importance of evaluating water infiltration in the field and not just relying on laboratory measures of water repellency...
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Catalogue: Ground Cover
Paul experimented with where to place the wetting agent (on top of the soil, next to the seed, below the seed) and found he could achieve good germination the first year, but patchy results the following year... The knife point runs just to the left of the previous year's stubble row to avoid bulldozing, and a wing set to the right of the boot places the seed under the existing stubble to target the moisture zone... The iTILL device runs a sensor over the stubble, while two hydraulic rams on the drawbar steer the seeder independently to the tractor to ensure the seed is placed into the moisture zone established by the previous crop...
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