Effects of Chemical and Biofertilizers on Yield and Production Factors of Valerian (Valeriana officinalis L.)

Mehdi Heydari-Rahni | Mohammad Nasri | Pourang Kasraie | Yousef Filizadeh

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URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=159343
Date :  2021/12/07
Publish in :    Journal of Medicinal Plants and By-products
DOI :  https://doi.org/10.22092/JMPB.2021.355006.1370
Link :  https://jmpb.areeo.ac.ir/article_125492.html
Keywords :Biofertilizer Medicinal plants Plant nutrition Root yield Valernic acid

Abstract :

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A field experiment was conducted to evaluate the effects of bio and chemical fertilizers on yield and production factors of valerian (Valeriana officinalis L.) at the Homad-Absard Agricultural Complex in Damavand city, Tehran Province, Iran, through a factorial experiment based on a randomized complete blocks design with 3 replications during 2017 to 2020. Experimental factors consist Nitroxin and Phosphate Barvar2 biofertilizers each with 2 levels of inoculation and control, and also the urea (46 N) chemical fertilizer in 5 levels (0, 30, 60, 90 and 150 kg ha-1). Measured parameters were root diameter (mm), root length (cm), leaf width (cm) and leaf length (cm) root dry weight (kg ha-1), shoot dry weight (kg ha-1), valernic acid content () and valernic acid yield (g ha-1). Results showed that the biofertilizers had significant effect (p≤0.01) on the all quantity and quality parameters studied. Unlike the urea chemical fertilizer at all levels which had a negative effect on the yield and amount of valernic acid (), biofertilizers increased it. Maximum and minimum amount of valernic acid () were measured in control (0.465) and 150 kg ha-1 urea (0.215) respectively. The highest and lowest root dry weight were obtained in interaction of Nitroxin+Phosphate barvar2 + 150 kg urea (665 kg ha-1) and control (221 kg ha-1) respectively. Results of this experiment showed that biofertilizers with positive effects on experimental parameters are able to replace the chemical fertilizers.