Mirshekari Somayyeh, Ghanbari Ahmad, Fakheri Baratali and Heidari Mostafa
Abstract
This experiment was conducted to find the influence of drought stress, organic and chemical fertilizers on Ajowan plant (carum copticum). A split plot experiment performed on a randomized complete blocks design with three replicates. Three levels of drought stress ( 50, 70 and 90 % of field capacity) considered as main plots and six levels of fertilizer included non-fertilizer consumption (control), bestial fertilizer, compost, NPK, 50% bestial fertilizer + 50% NPK, 50% compost+ 50% NPK, as subplots. The results showed that With increasing drought stress on non-fertilized plots, seed performance, growth statue and performance of essence in each hectare(ha) was significantly decreased(p≤0.05). Application of organic and chemical fertilizers has a positive effect on the resistance of plant against drought stress and prevents the performance reducing of the plant under this condition. The most essence performance in 1 hectare was achieved by bestial fertilizer + NPK in 70% field capacity (110.71 kg/ha) and the most seed performance was achieved by NPK in 70% field capacity (2918.89 kg/ha).