بررسی تأثیر نیتروژن از منابع زیستی، آلی و شیمیایی بر عملکرد کمی و کیفی بابونه آلمانی

In order to evaluate the effect of biologic, organic and chemical nitrogen sources on quantitative and qualitative yield of chamomile, a factorial experiment was carried out in complete randomized block design with three replication at Firozkoh region in 2012. The results of analysis of variance indicated that the vermicompost effect was significant for all the measured traits. The effect of the spray was also significant for all the traits except for fresh flower yield. The vermicompost × spray interaction effect was only significant for fresh and dry flower yield. Plant height, number of branches per plant, number of flower per plant and the amount of essence were the highest at 12 ton/ha vermicompost. The results of the spray effect showed that plant height, number of branches per plant, number of flower per plant were the highest in the spray of urea, while the amount of essence were the highest in the spray of amino acid. Fresh and dry flower yield were the highest at simultaneous combination of the spray of urea and application of 12 ton/ha vermicompost. The results indicated that the simultaneous combination of the spray of urea and application of 12 ton/ha vermicompost were priority for the quantitative traits including fresh and dry yield, while for qualitative traits including the amount of essence, the spray of amino acid effect was more important.