The Effect of Mycorrhiza Inoculation and Organic Fertilization on some Growth and Flowering Qualities of the Chrysanthemum Plant Calendula officinalis L.

Abstract

Abstract The experiment was carried out in the wooden canopy - Faculty of Agriculture-Tikrit University - during the agricultural season 2020-2021 in plastic pots and planted Chrysanthemum seedlings, the seeds of which were grown in Cork dishes on 10/1/2020, the seedlings were transferred to plastic pots with a diameter of 14 cm when 5-4 of the real leaves were formed by 18 repeated treatments three times to make 54 experimental units using the following transactions : 1-inoculation with mycorrhiza fungus of the type Glomus mosseae at two levels (with and without inoculation). 2-using two-level compost(with and without compost) manufactured from printing papers in a ratio of (1: 3), i.e. 3 paper compost and 1 soil, Also an artificial ptomose was used with a ratio of (2-1). And mixed soils (for comparison treatment). 3-use chemical fertilizer with three levels (no fertilizer, half recommendation, full recommendation). The results showed that inoculation with mycorrhiza fungi led to a significant increase in the dry weight rate.