Articles
EFFECTS OF DIFFERENT NITROGEN FORMS AND COMBINATIONS ON TOMATO PLANTS GROWN IN GREENHOUSE
Article number
176_10
Pages
83 – 92
Language
Abstract
The effects of different nitrogen forms and combinations in nutrient solution on two cultivars (Marmande and Precodor F1) grown in greenhouse were investigated.
Six treatments were examined: NO3-N, NH4-N, Urea-N, NO3-N + NH4-N (1 : 1), NO3-N + NH4-N3 (2 : 1)4, Urea-N + NO3-N + NH4-N (2 : 1 : 1). The form Urea-N and the combination Urea-N + NO3-N + NH4-N (2 : 1 : 1) showed the highest yield.
Six treatments were examined: NO3-N, NH4-N, Urea-N, NO3-N + NH4-N (1 : 1), NO3-N + NH4-N3 (2 : 1)4, Urea-N + NO3-N + NH4-N (2 : 1 : 1). The form Urea-N and the combination Urea-N + NO3-N + NH4-N (2 : 1 : 1) showed the highest yield.
The fruit quality did not result different among the treatments.
Also, results about the nutrient concentration in the fruits and in the whole plants are reported.
Authors
A. Graifenberg, L. Giustiniani, S. Petsas, P. Jardin
Keywords
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