THE RESPONSE OF QUALITATIVE AND QUANTITATIVE CHARACTERISTICS OF AJOWAN (CARUM COPTICUM) TO ORGANIC AND CHEMICAL FERTILIZERS UNDER DROUGHT STRESS CONDITIONMirshekari Somayyeh, Ghanbari Ahmad, Fakheri Baratali and Heidari Mostafa
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).
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