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Catalogue: GRDC Media
Break crops could hold key to tap soil phosphorus reserves.. University of Adelaide research, funded by the GRDC, on break crops has demonstrated positive effects on phosphorus uptake and yield in subsequent wheat crops... Wheat following a break crop has a greater P uptake and higher yield than continuous wheat rotations...
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Catalogue: GRDC Media
If growers reduce P rates at seeding then, unless it replaces what is removed, soil test values will decline, according to IPNI's Dr Rob Norton... Dr Norton says growers spend from $50 to $100 per hectare on P every year, which is a big investment when they do not know what the result is going to be at the end of the season... "Shallow samples over-estimate soil test values and deeper samples underestimate the true value representative 10cm deep samples are critical to interpret the current soil P tests...
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Catalogue: GRDC Media
If growers reduce P rates at seeding then, unless it replaces what is removed, soil test values will decline, according to IPNI's Dr Rob Norton... Dr Norton says growers spend from $50 to $100 per hectare on P every year, which is a big investment when they do not know what the result is going to be at the end of the season... "Shallow samples over-estimate soil test values and deeper samples underestimate the true value representative 10cm deep samples are critical to interpret the current soil P tests...
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