Paper Details

Effect of different sources of nitrogen and zinc sulfate on grain yield and its associated traits in marigold (Calendula officinalis L.)

Abbas Maleki, Ali Feizolahi, Jahanfar Daneshian, Rahim Naseri, Reza Rashnavadi

DOI: https://dx.doi.org/10.12692/ijb/4.6.45-52

Int. J. Biosci. 4(6), 45-52. March, 2014. (PDF)

Abstract:

In order to study the effect of nitrogen and zinc sources on grain yield and its associated traits of medicinal plants Marigold, an experiment was carried out based on factorial arrangements using randomized complete block design with three replications at the research farm of the Islamic Azad University, in Takestan province in 2010-2011 cropping season. The experimental factors included nitrogen sources (manure and inorganic) with 5 levels (0 tons farmyard manure +120 kg.ha-1 urea, 10 tons farmyard manure + 90 kg.ha-1 urea, 20 tons farmyard manure + 60 kg.ha-1 urea, 30 tons farmyard manure + 30 kg.ha-1 urea and 40 kg.ha-1 farmyard manure + urea and zinc sulfate with 3 level (with spraying, once spraying and twice spraying). The results showed that nitrogen fertilizer sources and zinc sulfate affect significantly on dry matter, the number of grains per head, and the number of heads per plants, weight grains and grain yield. Interaction effect between treatments affect significantly on the number of grains per head and the number grains per plant. The consumption 20 tons farmyard manure + 60 kg.ha-1 urea with twice spraying of zinc sulfate was more effective in improving yield and its components in marigold so that the maximum number of seeds per plant (1356 seeds), dry matter (1082 g.m-2), and grain yield (269.1 g.m-2) were obtained from treatment with 20 tons farmyard manure + 60 kg.ha-1 urea with twice spraying of zinc sulfate.