You are here

Ameliorant

Catalogue: GRDC Updates
The development of delvers and the timing of delving, such as when the clay is near to the plastic stage, results in a much cheaper operation, the option to delve deeper and a dramatic increase in yield... The consistent increase in biomass above and below the ground was also very important, potentially resulting in increased organic matter in the soil... Farming north of Bordertown, SA on sandy soils has been a challenge and a great journey for Sue and myself since we started in our own right in 1979...
Related categories:
Catalogue: GRDC Media
The incorporation of lime appears to be paying off for some farmers through increased production, and research is underway this season to explore the economics of ameliorating subsoils in the eastern central grainbelt of Western Australia... One-year projects to determine economic rates and incorporation methods for lime in this region are being funded by the Grains Research and Development Corporation (GRDC) and conducted by Tek Ag at Koorda, and Synergy Consulting at Nungarin... "We're assessing the economic returns of each of these combinations, so farmers can start increasing productivity and profitability."..
Related categories:
Catalogue: Ground Cover
Manage Mallee seeps at the source for best results.. "Initial soil and drilling investigations in the sub-catchments assessed to date have shown that the main cause of seep formation is excess water draining through sandy dune soils, which is then held-up when it reaches the low-permeability layer known as Blanchetown clay," Mr Hall says... "To use more rainfall at the source, growers can work on improving crop agronomy, such as better management of water-repellent soils and soil nutrition," Mr Hall says "Another option is to improve the soil, which could mean alleviating soil compaction by the use of spading or other methods, or the use of clay spreading to improve water-holding and nutrient-holding capacities...
Related categories:
Catalogue: Ground Cover
South coast soils turned upside down.. "Where we used the machine, the canola roots had penetrated to a depth of 18cm in the first four weeks after sowing, compared with 8cm for canola roots in the untreated area," he says... "Behind the discs, we have tynes spaced at 280 millimetres that plough to a depth of 30cm, bringing clay to the surface, busting it up and spreading it through the soil profile," Ashley says...
Related categories:
Catalogue: GRDC Media
Western Australian grain growers intending to apply clay to paddocks in coming months can access the latest information about claying techniques from an online resource... All claying techniques ameliorate the soil by increasing the clay content in the topsoil and the effect generally lasts for about 10 years... The GRDC's investment in non-wetting soils research is part of the major collaborative research effort Soils Constraints - West which aims to develop and deliver solutions for a range of soil constraints limiting productive grain cropping in WA...
Related categories:
Catalogue: GRDC Updates (West)
year 1 )3 a h / t2.5 ( d l e i2 y n i a r1.5 g 1 nil gypsum gypsum rain limited potential 0.5.. Cascade soils after 20 years conductivity profiles EC 0.5 1 1.5.. use 'pre-washed' sodium confirm likely response adsorption ratio to gypsum works in subsoils as well as topsoils gypsum moves to depth rapidly and is effective for many years (not winter grazing) Questions?..
Related categories:
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...
Related categories:
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...
Related categories:

Catalogue: GRDC Final Reports
Improving compacted soils in the eastern wheatbelt.. The pore spaces between soil aggregates are enlarged and can hold and conduct more water increasing the ability of the soil to store and supply water... A combination of deeper ripping and closer tine spacing can give larger yield increases...
Related categories:
Catalogue: Ground Cover
Danny Flanery's focus on soil health has resulted in canola yields increasing from just 50t when he was starting out to around 500t from the same area (2500ha) now... Danny could not afford the fencing or trees on the scale required to make an effective start on the remediation of his own property, but local Landcare coordinator Louise Hufton of the Murrumbidgee Catchment Management Authority (CMA) was able to set some wheels in motion to secure government assistance... Danny has planted trees across a total of 300ha, and he sees this as a way to reinvigorate the property's biodiversity, while providing shelter for stock, pasture and crops, and absorbing excess moisture in the gullies...
Related categories:

Pages