Effects of irrigation frequencies and planting density on herbage biomass and oil production of Thyme (Thymus vulgaris) and Hyssop (Hyssopus officinalis)

Effects of Different Humic Acid Doses on Yield and Quality Properties of Corn (Zea mays L.) in Iraq-Sulaymaniyah Conditions

“…As seen from Table 6, it was determined that the average oil ratio obtained from interactions of both factors ranged from 3.22 to 3.71 %. Contrary to the findings of the study, in some previous studies which evaluated the effects of humic acid on the oil ratio, it was reported that with the application of HA, the oil ratio was increased (Khazaie et al, 2011;Rajpar et al, 2011;Alireza, 2012;Esmaili et al, 2016;Noroozisharaf and Kaviani, 2018). The results of the study could be affected by environmental factors such as extreme heat in the summer of the Ranya district, in which most of the days reached above 40 °C.…”

Effect of Mulching and Nutrition on Essential Oil Yield, Quality and Nutrient Uptake in Sweet Basil (Ocimum basilicum L.)

“…This is due to the action of low molecular weight organic acids secreted by bacteria and the synthesis of various phosphatases, resulting in increased phosphorous content in the soil. These findings are consistent with those of other studies, such as Heidari et al [17] in sweet basil, Khazaie et al [18] in lettuce, Solberg and Dragland [19] in thyme, and Anuroopa et al [20] in ashwagandha.…”

“…These beneficial soil microorganisms are rhizosphere-competent and can colonize various ecological niches in the rhizosphere, thereby facilitating the mobilization of a wider range of nutrients. This finding is consistent with the studies of Heidari et al [17] in sweet basil, Khazaie et al [18] in lettuce, Solberg and Dragland [19] in thyme, and Anuroopa et al [20] in ashwagandha.…”

“…The use of black mulch has resulted in higher nitrogen uptake by the plants, which could be due to factors such as increased mineralization under mulched conditions, reduced leaching, and optimal moisture levels that improve nutrient availability in the soil solution, ultimately leading to increased nutrient uptake by the plants. This finding is supported by previous studies conducted on sweet basil [17], lettuce [18], thyme [19], and ashwagandha [20], which have reported similar results.…”