The effect of irrigation intervals and different nitrogen levels on yield and yieldcomponents of Basil medicinal plant (Ocimum basilicum L.)
This research was conducted in order to investigate the effect of irrigation intervals anddifferent levels of nitrogen on the quantitative and qualitative yield of the physiological andagronomic characteristics of Basil (Ocimum basilicum L.) in the research farm of IslamicAzad University, Yadgar-e-Imam Khomeini (RAH) Shahre Rey branch. The experiment wasbased on split plots based on completely randomized blocks design with 3 replications. Theexperimental treatments included three levels of irrigation (4, 7, and 10 days) as the mainfactor and different levels of nitrogen (0, 70, 100 and 130 kg/ha) were considered assecondary factors. The traits of plant height, number of branches, number of leaves, mean leafarea and dry matter yield were investigated. The results showed that except for the number ofsub-branches in the plant, the difference between different levels of irrigation intervals andnitrogen amounts were significant for all evaluated traits.The highest dry matter yield was related to the treatment combination of irrigating every 4 or7 days and 100 kg of nitrogen per hectare consumption.
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