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soil ph profile

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Catalogue: GRDC YouTube channel
3.74: GCTV Ep#8 Liming Acid Soils 4.08: Narrator: Soil acidity is wide spread throughout Western 6.51: Australia 9.29: 4 to 500 million dollar loss in annual production... Its why the Grains Research and Development 14.49: Corporation has previously supported soil acidity 17.39: research in the state, and why currently the federal government 21.99: program is contributing funding to a joint state government 25.599: and private enterprise project... 252.67: Narrator: WA has a number of lime pits along the coast 256.63: and this one at Lancelin about an hour and half 259.079: drive north of Perth has one of the largest marketing footprints, supplying lime to farms 264.05: up to 600 kilometres away...
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Catalogue: GRDC Final Reports
The cost of soil acidity to agriculture is recognised as being great, especially in Western Australia where the most recent analysis estimates 30% of dryland agricultural soils have subsurface acidity - or are at high risk of developing subsurface acidity - which causes a decline in wheat yield of between 20 and 40% (GRDC Project UWA00081)... The most recent analysis estimates that 30% or 5-6 million hectares of dryland agricultural soils have subsurface acidity or are at high risk of developing subsurface acidity which causes a decline in wheat yield of between 20 and 40% (GRDC Project UWA00081)... The experience and machinery developed as a result of this work is currently being passed on and used by the SIP08 project UWA00081 and will be used where applicable by Wal Anderson's new GRDC project 'Enhancing paddock profitability - a collaborative diagnostic approach to cropping systems research'...
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Catalogue: GRDC Updates (West)
Management of subsoil acidity and compaction using a combination of lime, deep ripping and controlled traffic Stephen Davies, Chris Gazey, Breanne Best and David Gartner, Department of Agriculture and Food, Western Australia.. The management of carbon can easily be promoted within the context of retaining both a profitable and viable farming system... A number of questions remain in relation to carbon offsets in agriculture and many of the opportunities and risks are unknown at this point in time...
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Catalogue: GRDC Updates (West)
Impact of soil inversion, soil dilution and claying on non-wetting sandplain soils Stephen Davies, Peter Newman and Breanne Best, Department of Agriculture and Food, Western Australia.. Soil penetration resistance was measured with a Rimik CP40 cone penetrometer when the soil was at field capacity in both trials... The soil pH deeper in the soil profile was not measured at the time but is assumed to increase to around 5, which is typical for the soil type...
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Catalogue: GRDC Updates
Taking soil acidity seriously - results of grower surveys gazey table 1.. Soil acidity can be effectively treated through liming-the key is to apply the right amount... Where the benefits of adequate soil sampling to depth and adequate, targeted liming are demonstrated, most growers are prepared to incorporate these into their farming system believing that soil acidity is manageable on their farms...
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Catalogue: GRDC Updates (West)
" Taking soil acidity seriously - results of grower surveys Chris Gazey, Department of Agriculture and Food, Northam, Western Australia James Fisher, Desiree Futures, York, Western Australia Joel Andrew, Precision SoilTech, Belmont, Western Australia KEYMESSAGESFORGROWERS Aim to apply sufficient agricultural lime to achieve the target pH Caof 5.5 in the surface and 4.8 in the subsurface as an integral part of farming practice-this will ensure that soil acidity is removed as a constraint to most farming systems in broadacre WA wheatbelt... Work from facts, don't guess-measure your soil's pH profile by soil testing 0-10, 10-20 and 20-30 cm layers... Improve returns from liming by developing a liming programme to ensure that lime is applied at the right rate in the right place and at the right time...
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