Effects of different fertilizer sources on vegetative characteristics of pot marigold plant ( Calendula officinalis L.)

摘要

Medicinal plants are one of very valuable resources in wide range of natural resources of Iran that it can have animportant role in health. In order to investigate the effect of nitrogen fertilizer and zinc sulfate on vegetativecharacteristics of Calendula Officinalis, as factorial experiment based on randomized complete block designwas carried out with three replications in Takestan, Iran during 2010-2011 cropping season. The experimentalfactors were consisted of nitrogen fertilizer (manure and urea) with 5 levels (0 tons of manure + 120 kg.ha-1urea,10 tons of manure + 90 kg.ha-1urea, 20 tons of manure + 60 kg.ha-1urea, 30 tons of manure + 90 kg.ha-1urea and40 tons of manure + 0 kg.ha-1urea) and zinc sulfate of 3 levels (no spraying, once spraying and twice spraying).The results showed that the effect of nitrogen fertilizer (manure and urea) and zinc sulfate was significant onnumber of stem sub, leaf dry weight, stem dry weight, capitulum dry weight and flower yield. The highest floweryield was obtained from 20 tons manure + 60 kg.ha-1 urea with the amount of 77.96 g.m-2. In the case of zincSulfate, was obtained the maximum yield flower with twice spraying, the amount of 78.05 g g.m-2, interactionbetween treatments had no significant effect on shoot weight and flower yield. The maximum flower yield wasobtained from combination treatment of 20 tons of manure + 60 kg.ha-1 urea and twice spraying zinc to amountof 90.2 g.m-2.