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Targeted Nutrition at Sowing

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Maximising profit from fertiliser starts with targeting inputs to yield potential, the reserve of nutrients in the soil and forecast grain prices... $18/ha advantage with precision fertiliser david fulwood, cunderdin, western australia, estimates using variable rate technology to target fertiliser inputs to production zones saves $18 a hectare a year over uniform application... Variable fertiliser maps are calculated on a crop-related replacement rate for removal in grain plus a blanket rate of 2kg/ha of P to account for P tied-up in the straw and soil...
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