Influence of chemical and organic fertilization programs on 'Keitt' mango (Mangifera indica) yield

Bielinski M. Santos, James P. Gilreath

Abstract


Studies were conducted in the Dominican Republic during two years on adult 'Keitt' mango (Mangifera indica L.) fields to examine the long-term effect of chemical and organic fertilization programs on marketable fruit yield. The treatments were: a) 1.8 kg 15-15-15 per tree, once a year; b) 1.1 kg 15-15-1 per tree, twice a year; c) 1.4 g 15-15-15 per tree, once a year; d) 1.8 g 15-15-15 per tree, once a year, plus 13.6 kg compost/tree; e) 1.1 kg 15-15-15 per tree, twice a year, plus 13.6 kg compost per tree; and f) 1.4 kg 15-15-15 per tree, once a year, plus 13.6 kg compost per tree. The results indicate that the application of 1.8 kg 15-15-15 per tree, once a year, plus 13.6 kg compost per tree, and 1.3 kg 15-15-15 per tree, twice a year, plus 13.6 kg compost/tree improved marketable fruit number during both harvest years. The addition of compost for two years increased fruit number by averages of 17 and 24% in comparison with the same treatments without compost.

Keywords


mangifera indica; compost

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Proc. Fla. State Hort. Soc.     ISSN 0886-7283