Effects of organic composts on yield and protein content of corn cultivars in Khash region

In order to study of effect of organic composts on yield and protein content of corn cultivars, an experiment was carried out in 2011 in Sohrababad research center located in east north of Khash. The experimental design was split plot, using randomized complete block design with three replications. The factors included were, main factors: without consumption of compost (S0), consumption of 200 kg/ha of chicken organic compost (S1), consumption of 200 kg/ha of fish organic compost (S2), consumption of 900 kg/ha of cow organic compost (S3) and three sub factors: single cross 704 (V1), Keniz (V2), Maxima (V 3). The results indicated that consumption of organic composts leads to a significant increase in plant height, seed yield and biological yield; however it hadn’t significant effect on protein content of corn. Also interaction effect of organic composts application and corn cultivars had significantly effect on plant height, seed yield, biological yield and protein content of corn. Generally, in this experiment the highest corn yield obtained from treatment of cow organic compost application and single cross 704 cultivar.