The effect of biological fertilizers and vermicompost on the morphological characteristics of Iranian Echium (Echium amoenum)

In this study, the effect of biological fertilizers and vermicompost on the yield of some morphological characteristics of Echium amoenum was studied.

The present study was conducted in the open field in 2017-2018 as a factorial based on a randomized complete block design (RCBD) with three replications. Two factors A: biological fertilizer at three levels, a1-control (without fertilizer application), a2- Herban fertilizer a3- Probiotic fertilizer containing Bacillus Subtilis UTB 96, and B: vermicompost at three levels, b1-control (without fertilizer application), b2- application of 150 g (15%), and b3- application of 300 g (30%) of vermicompost per kg of soil were investigated. Morphological traits were measured.

The results showed that there was a significant difference between the levels of biological fertilizers and vermicompost in terms of most traits at the levels of 5% (p≤0.05). In vermicompost treatment 150 g/kg (15%) the values obtained from the measurement of traits such as dry weight (11.12 g) and root length (31.72 cm), dry weight (6.12 g) and The length of the tallest stem (30.33 cm), as well as the number of fresh flowers per plant (19) and flower dry weight (446 mg) increased compared to the treatment without vermicompost.

In order to develop a sustainable agricultural production system and to increase and improve the morphological traits of Iranian Echium amoenum medicinal plant, maintain nutrient balance, use organic organic fertilizers of vermicompost up to 15%, natural biological fertilizer containing growth-promoting rhizosphere bacteria And probiotics are recommended.