ISHS Acta Horticulturae 361: International Symposium on New Cultivation Systems in Greenhouse
PRETRANSPLANT NUTRITIONAL CONDITIONING AFFECTS PEPPER SEEDLING GROWTH AND YIELD |
| Authors: | S. Nicola, L. Basoccu |
| Keywords: | Capsicum anmum L., fertirrigation, nitrogen, nutrition, nursery, transplant |
| Abstract:
"Sonar" pepper (Capsicum anmum L.) seedlings, grown in plastic pots (180 cm3) filled with a peat substrate, were fertilized from the 2nd true leaf to transplanting (33 days) with solutions (200 ml/plant in total) containing N at 4, 8, 15, 30 and 60 mmol l-1 in factorial combination with P and K at constant following ratio: N:P2O5:K2O = 1.0:0.4:1.2 or P,K at constant level, corresponding to N = 15 mmol l-1 of the prior case. The major factor affecting pepper seedling growth was the N level in the solution: increasing N from 4 to 15 or 30 mmol l-1 plant height, leaf and stem dry weight, SWR increased. The interaction effect between N level and N,P,K relation affected leaf area, leaf, stem and root fresh weight, root dry weight, RGR, SLA, LWR and RWR. Regarding the field, the N level and the N,P,K relation affected simultaneously the early production. Only the N main effect slightly affected the total production, reaching a higher fruit number and weight at N = 15 mmol l-1. | |
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