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). Measured parameters were root diameter (mm), root length (cm), leaf width (cm) and leaf length (cm) root dry weight (kg/ha), shoot dry weight (kg/ha), valernic acid content (%) and valernic acid yield (g/ha). 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 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) and control (221 kg/ha) respectively. Results of this experiment showed that biofertilizers with positive effects on experimental parameters are able to replace the chemical fertilizers.
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Heydari-Rahni, M., Nasri, M., Filizadeh, Y., & Kasraie, P. (2022). Effects of Chemical and Biofertilizers on Yield and Production Factors of Valerian (Valeriana officinalis L.). Journal of Medicinal plants and By-Products, 11(2), 211-218. doi: 10.22092/jmpb.2021.355006.1370
MLA
Mehdi Heydari-Rahni; Mohammad Nasri; Yousef Filizadeh; Pourang Kasraie. "Effects of Chemical and Biofertilizers on Yield and Production Factors of Valerian (Valeriana officinalis L.)". Journal of Medicinal plants and By-Products, 11, 2, 2022, 211-218. doi: 10.22092/jmpb.2021.355006.1370
HARVARD
Heydari-Rahni, M., Nasri, M., Filizadeh, Y., Kasraie, P. (2022). 'Effects of Chemical and Biofertilizers on Yield and Production Factors of Valerian (Valeriana officinalis L.)', Journal of Medicinal plants and By-Products, 11(2), pp. 211-218. doi: 10.22092/jmpb.2021.355006.1370
VANCOUVER
Heydari-Rahni, M., Nasri, M., Filizadeh, Y., Kasraie, P. Effects of Chemical and Biofertilizers on Yield and Production Factors of Valerian (Valeriana officinalis L.). Journal of Medicinal plants and By-Products, 2022; 11(2): 211-218. doi: 10.22092/jmpb.2021.355006.1370