Effect of calcium sulfate and triple superphosphate levels on yield and yield components of barley (Hordeum vulgare L.) under Ahvaz climate condition

In order to evaluate the effect of triple superphosphate and calcium sulfate fertilizer on yield and yield components of Barley (Hordeum vulgare L.)crop plant in 13 sarasari cultivar, an experiment was carried out at Ahwaz with Factorial arrangement based on a Completely Randomize Block Design with four replications in Research Field of Khouzestan Science and Research Branch which was located in cute abdollah of ahvaz. In this experiment triple superphosphate in three levels (0,30 and 60 kg/ha) and calcium sulfate in four levels (0,50,100 and 150 kg/ha) were strip applied at sowing time. The results showed that the rates of triple superphosphate and calcium sulfate had significant effect on yield and yield components at 1% level. In the base of means comparison, 60 kg/ha triple superphosphate was the most proper treatment on Seed yield, Biological yield, Harvest index, Number of seed per spike, Number of spike per square meter and 30 kg/ha was the most proper treatment on stubble and 1000 Seed weight. Apply of calcium sulfate in comparison with no application condition caused increasing yield of barley but did not observed significant difference among the levels of application in this fertilizer.