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buffered soil

Catalogue: GRDC Updates
Many soils may already have lost much of this extra, slow release P reserve... Soil testing for available P status commonly involves a Colwell test on the 0-10 cm layer... The paper summarises some recent work that attempts to quantify the differences in availability of sparingly soluble P sources as affected by soil acidification...
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Catalogue: GRDC Publications
GRDC Grains Research Update Coonabarabran, February 2014 grain protein levels in the untreated were below 12% in all trials... Understanding how the reserves present in more than half of soils release P is important... Soils with <60 mg/kg BSES P may not be able to replenish available P pools easily, and this corresponds with two thirds of those soils investigated in the Queensland study...
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