Document Type : Research Paper

Authors

• F. Eslami Khalili ¹
• H. Pirdashti ²
• M.A. Bahmanyar ³
• F. Taghavi Ghsemkheili ³

¹ MSc. Student, Islamic Azad University, Ghaemshahr Branch, Ghaemshahr, Iran

² Department of Agronomy and Plant Breeding, Genetics and Agricultural Biotechnology Institute of Tabarestan, Sari Agricultural Sciences and Natural Resources University, Sari

³ Department of Agronomy and Plant Breeding, Sari Agricultural Sciences and Natural Resources University, Sari, Iran

Abstract

In order to evaluate the effects of enriched and non-enriched organic and chemical fertilizers on chemical properties of soil and some nutrient concentrations in pot marigold (Calendula officinalis L.), a pot experiment was conducted based on randomized complete block design with 11 treatments and 3 replications in 2010. Treatments were included control (without organic or chemical fertilizer), chemical fertilizer (CF) as the rate of  80 kg urea ha^-1, 100 kg ha^-1 super phosphate triple and 80 kg potassium sulfate ha^-1, compost, pasteurized compost (bagas + perlit), sheep manure (10 ton ha^-1 alone or plus ½ and ¼ CF). Results showed that fertilizer treatments had significant effect on all treatments except leaf potassium. Accordingly, leaf and flower dry weight were maximum in 10 ton ha^-1 pasteurized compost and farmyard manures plus ½ and ¼ CF. The highest phosphorous concentration in flower and leaf (0.46 and 0.17 percent, respectively) was recorded when 10 ton ha^-1 compost plus ¼ CF was applied. Furthermore, maximum Cu concentration in both flower and leaf (32.60 and 26.25 mg L^-1, respectively) were belonged to either 10 ton ha^-1 compost plus ½ CF or 10 ton ha^-1 farmyard manure while 10 ton ha^-1 farmyard manure plus ½ CF had not significant effect on Mn content in flower and leaf. The highest Zn in leaf of marigold was observed in 10 ton ha^-1 compost up to 1.2 times compared to control.

Keywords

• Marigold (Calendula officinalis L.)
• organic and chemical fertilizer
• soil
• nutrient elements