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soil acidity

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Catalogue: GRDC Updates
The practice has corrected surface acidity but values of subsurface (typically 10-20 cm) pHCa< 4.5 are now common, leading to development of an acid throttle, sandwiched between the limed surface and the naturally neutral or alkaline subsoil... On the basis of three experiments in 2007, where we injected lime into acid (pHCa 4.0 - 4.3) subsurface layers, apparently not much... The uniformity of the effect of lime injection was measured at Milvale and found to be uneven across the rip-lines, with an increase of pHCa from 4.3 to >6 in the rip lines, but little change between the rips...
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Catalogue: GRDC Media
Soil testing with rake and boot.. Research is updating 'critical soil test values' which is improving interpretation of soil test results and helping Western Australian grain growers make better fertiliser decisions... Findings from crop nutrition research and guidelines to help growers conduct soil testing and apply fertiliser effectively are outlined in a Soil Testing for Crop Nutrition Fact Sheet and More Profit from Crop Nutrition Ground Cover Supplement...
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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 Updates (West)
Mention of a trade name or company in this publication does not imply endorsement of any product or company by the Department of Agriculture and Food, Western Australia... Overall, 60-70 per cent of flour is used in traditional flat breads, 20-25 per cent of flour is used in western style breads and 5-10 per cent is used in cakes and biscuits... In summary, canola varieties sown 2-3 weeks earlier than normal (early to mid April) can be grazed in winter prior to bud elongation (usually providing 600-800 dse grazing days/ha) and recover with no impact on yield or oil...
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Catalogue: GRDC Updates (West)
Mention of a trade name or company in this publication does not imply endorsement of any product or company by the Department of Agriculture and Food, Western Australia... Overall, the DAFWA indices suggest that a more optimistic approach to decision-making is recommended in 2006 and confidence in this assessment would be enhanced if a La Ni a develops... The needs analysis has enabled an assessment of the distribution of farmers along the pathway from initial awareness through to final adoption of CRM information and tools being offered by various organisations...
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Catalogue: GRDC Updates
Herbicide resistance - Beating the challenge in Western Australia.. Contact details Rod Messina rodmess@springparkfarms.com.au < Keep browsing 0 Responses to Herbicide resistance - Beating the challenge in Western Australia.. Log in or register to leave a comment...
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Catalogue: GRDC Media
A lime calculator released by the Liebe Group, produced with funding from the Grains Research and Development Corporation (GRDC), can help determine the appropriate quantity and costs of lime (including incorporation methods) needed to address specific soil pH conditions... Another useful tool is the Lime Comparison Calculator, available at www.soilquality.org.au/calculators/lime_comparison on the Soil Quality website, which is supported by the GRDC Soil Biology Initiative II and Wheatbelt Natural Resource Management... The calculator can help growers compare the effectiveness of different lime products, which can be sourced from many places and have different characteristics...
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Catalogue: GRDC Updates
When we examine just the top 25 per cent of farmers we see that they still have a large variability in their returns in individual years... The highlighted results in Table 1 show the years in which these businesses generated exceptional returns... We have used an ROC of greater than 10 per cent as a measure of this...
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Catalogue: Ground Cover
Chaff cart benefits crop and stock.. Ted Ridgway with the chaff cart he adapted with his son, Andrew, to fit their header on the family's farm at Pine Hill, South Australia... While newer herbicides, such as Sakura in wheat and Select in canola, are working well in controlling ryegrass, Ted realised he needed to diversify his control practices before he lost the new chemicals to resistance as well...
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Catalogue: Ground Cover
Chaff cart benefits crop and stock.. Ted Ridgway with the chaff cart he adapted with his son, Andrew, to fit their header on the family's farm at Pine Hill, South Australia... While newer herbicides, such as Sakura in wheat and Select in canola, are working well in controlling ryegrass, Ted realised he needed to diversify his control practices before he lost the new chemicals to resistance as well...
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