Nutrient deficiencies in apple plants (Pyrus malus L.)
A trial was carried out with one year old 'Ohio Beauty apples (grafted on 'Doucin'), grown on sand cu1ture, receining nutrient solutions lacking the following nutrients at the time: N, P, K, Ca, Mg, S, and B. The main conclusions are as follows: as the adequate and inadequate levels from leaf analysis were, respectively: N -2.22 and 1.53%, P - 0,17 and 0.05%, K - 1.32 and 0.33%; Ca -0.9.4 and 0.52%, Mg - 0.37 and 0.06%; S -0.18 and 0.08%; B -62 and 2k ppm.
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Auteurs principaux: | , , , |
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Format: | Digital revista |
Langue: | English |
Publié: |
Universidade de São Paulo
1981
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Accès en ligne: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761981000100032 |
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