IMPACT OF BIO-FERTILIZER AND HUMIC ACID APPLICATIONS ON PRODUCTIVITY AND SOME BIOCHEMICAL CHARACTERISTICS OF THYMUS VULGAIS GROW IN SANDY SOIL. | ||
| Minia Journal of Agricultural Research and Development | ||
| Volume 43, Issue 4, December 2023, Pages 853-872 PDF (707.37 K) | ||
| Document Type: Original Articles | ||
| DOI: 10.21608/mjard.2023.340131 | ||
| Abstract | ||
| This research was conducted at Agriculture Faculty Nursery at Mansoura University, during the two seasons of 2022/2023. In order to study the effect of humic acid (HA) and arbuscular mycorrhizal fungi (AMF) and their interactions on vegetative growth, essential oil and chemical composition of Thymus vulgais. Plants were irrigated with (HA) as bio-stimulant applied monthly at the concentrations of (0, 0.5, 1 and 2%) grown in pots containing both sandy soil with or without (AMF). The results showed that added (AMF) to the soil led to significantly increase in the studied traits such as, growth parameter, yield, chlorophyll content, total carbohydrates and essential oil percentage. Specifically, (AMF) combined with (HA) at 1% resulted in a significant increase in fresh weight (16-46%), chlorophyll a (84%), carbohydrate (4-32%), and oil yield (75- 80%) as compered with (AMF) without humic acid. Furthermore, the application of (HA) at 1% also influenced the composition of thymus oil. The results cited above concluded that (AMF) and humic acid increase both growth and essential oil production in plants which enhanced its commercial value. | ||
| Keywords | ||
| Thymus vulgaris; bio-fertilizer; Arbuscular Mycorhizal fungi; Humic acid | ||
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