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THE increased use of irrigation and chemical thinning in apple orchards and the planting of trees in light soils have resulted in responses to regular fertiliser dressings.
Shorter, N H. and Cripps, J. E. L.
"Fertiliser recommendations for apple trees,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 10
, Article 2.
Available at: https://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol10/iss6/2