EFFECTS OF ORGANIC, CHEMICAL AND INTEGRATED NUTRITION SYSTEMS ON MORPHO-PHYSIOLOGICAL TRAITS OF OREGANO (Origanum vulgare L.)

Abstract

In order to evaluate the effects of organic, chemical and integrated nutrition systems on morpho-physiological traits of oregano (Origanum vulgare L.), an experiment was carried out at the experimental farm of the Agricultural and Natural Resources Research Center, Urmia, Iran, during 2016-2017 growing season. The experimental design was a completely randomized block design with three replications. The experimental treatments included NPK, two organic (vermicompost and biochar), two biological (nitroxin and bio super phosphate) fertilizers and their all twin combinations and control (non-fertilized). Our results showed that the application of organic fertilizers caused a significant increase in yield and essential oil content in oregano. On the other hand, integrated nutrition treatments had the most effect on increasing the traits in compared with the individual treatments. The highest essential oil yield was obtained from Nitroxin treatment (871.27 kg ha-1) in the second year. Whereas, the lowest value of essential oil yield was found in control (non-fertilized) (25.92 kg ha-1) in the first year. The present study clearly indicated that chemical fertilizers could be replaced by biofertilizers resulted in similar oil yield.

Organic management vs. conventional management influence the antimicrobial activity of essential oils of Origanum vulgare L

“…The highest concentrations of the compounds were identified in the organic treatments when the application of conventional synthetic fertilizer (NPK) was compared. The results obtained in this study correspond to those obtained by Esmaielpour et al,(2017); Ganjali et al, (2017); Ayyobi et al,(2014); Shirin Nikou et al, (2019), in which the application of vermicompost associated or not with rhizobacteria in the cultivation of medicinal plants were more efficient than the application of synthetic fertilizer NPK.…”

“…Thus, the difference in relation to field cultivation, either by the conventional system through the application of synthetic fertilizers or agroecological management, using organic vermicompost or compound, can directly influence the yield, content and phytochemical composition of essential oils. Studies by Esmaielpour et al, (2017) for Ocimum basilicum L., by Ganjali et al, (2017) in the cultivation of Rosmarinus officinalis L., Ayyobi et al, (2014) in the cultivation of Mentha piperita L. and Shirin Nikou et al, (2019) for Origanum vulgare L., observed greater efficiency in the application of vermicompost in relation to synthetic fertilizer (NPK) or control (soil).…”

Biometry and Essential Oil of Oregano Grown Under Different Water Depths and Organic Fertilizer Doses in a Protected Environment

“…Spice plants such as oregano, garlic, marjoram, and basil tend to have higher polyphenol and carotenoid contents when grown in an organic system (Hallmann & Sabała, 2020). In terms of mass accumulation, biofertilizers can be adopted as substitutes for chemical fertilizers without changes in yield (Nikou et al, 2019).…”

The Impact of Irrigation Levels with Normal and Magnetic Water, Bio Fertilization on Garlic Growth, Yield and Storage

“…Bio-fertilizer treatment had the higher plant length of garlic compared to the non-biofertilizer. These bacterial strains' function in increasing endogenous plant hormones including GA3, IAA, and cytokinin which in turn encouraged cell division and the development of more vascular tissues may be responsible for the increased growth (Nikou et al 2018) on Origanum vulgare. The corresponding results were attained with Bhushan et al (2020), on garlic.…”