Effect of Biochar Application and Irrigation Management on Yield and YieldComponents Medicinal Plant (Trachyspermum ammi.)

Biochar is a kind of organic materials which has high stable properties, in recent years attracts the attention of researchers. This research was conducted with the aim of investigating the effect of interaction of water stress and various biochar levels on growth and yield characteristics of medicinal plant was done in a completely randomized block design as split plot with irrigation treatment at two levels (I1 and I2: Irrigation respectively. By providing 100% and 50% water requirement), biochar treatment were used at three levels (C1, C2 and C3: biochar use at levels of 2, 5 and 10 gr per kg of soil) with three replications at the research farm of the Faculty of Agriculture, University of Birjand. Under the interaction influence of biochar and water stress, respectively, the highest and lowest plant height was 0.548 and 0.445, fresh and dry weight, 100 seed weight, 11.38, 7.77, 3.2, Versus 8.9, 6.06, 2.5 gr and the total grain weight, was 0.88 kg versus 0.057 kg, and the grain yield was 602.41 and 1148.2 kg / ha, and the water use efficiency was 0.286 and 220.0 kg / m3 An biochar application at a level of 45 tons per hectare, and especially under the influence of complete plant irrigation, can lead to maximum yield and growth characteristics of the plant.