The interaction between drought stress, phosphorus and zinc showed that the highest content of bisabolo oxide A
was belonged to irrigation based on 25% of field capacity with application of 150 kg phosphorus fertilizer ha1 and 30 kg zinc fertilizer ha1. But the highest essential oil yield was belonged to irrigation based on 50% of field capacity along with application of 150 kg phosphorus fertilizer ha1 and 30 kg zinc fertilizer ha1 (Table 7).