Petiole analysis for fertiliser management of potatoes on sands

Page last updated: Wednesday, 21 October 2015 - 7:59am

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Using the table

Compare the results from the analysis service with Table 1 to see if the concentrations of nutrients in the petioles fall within the range expected for adequately fertilised, high yielding crops.

If the result for a particular nutrient is below the range in Table 1, then for most varieties the nutrient is likely to be inadequate and more should be applied if practical. That is, extra nutrients should only be applied if it is cost effective, and it is possible to apply the fertiliser either via machinery or the irrigation system and it is not too late in the life of the crop.

If a nutrient concentration is too high, reduce the rate of application of fertiliser containing the nutrient to avoid toxicity in the current crop.

Contact information

Peter Dawson
+61 (0)8 9892 8461

Petiole analysis for fertiliser management of potatoes on sands

Author

Ian McPharlin