Foliar and soil analysis Foliar analysis
Foliar analysis is the best method for formulating a fertiliser programme for cherimoya. Leaf samples should be collected towards the end of February or early March. The youngest mature leaf (fourth or fifth back from the growing point) should be selected from actively growing non-bearing shoots.
Critical leaf concentrations for macronutrients and micronutrients of New Zealand cherimoya have not yet been determined. A study done on healthy trees growing in Queensland, Australia found the following concentrations of elements.
Typical element concentrations from cherimoya foliar analysis.
Soil analysis
Soil analysis is generally less useful than foliar analysis for formulating a fertiliser programme for cherimoya, but is helpful in determining pH levels.
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– fertilizing cherimoya trees
