Evaluation of the Combined Effect of Biological and Chemical Phosphorous Fertilizers and Micronutrient on Seed and Protein Yield of Barley (Hordeum vulgare L.)

Now-a-days, in addition to the quantity of production its quality, stability and sustainability are taken into account. This research was conducted in a split plot experiment based on randomized complete block design with three replications at Ramhormoz region in 2016-2017. The main treatments consisted of phosphorus fertilizers and bio-fertilizers with four levels (without using phosphorus fertilizer as control, bio-fertilizer, phosphorus bio-fertilizer + 150 kg.ha-1 superphosphate fertilizer and 200 kg.ha-1 superphosphate fertilizer) and foliar application of micro-nutrients (zinc, iron and manganese) with three levels (without application of micro-nutrients as control, spraying of micro-nutrients with 0.002 and 0.004 concentrations) assigned to sub plots. The analysis of variance of data showed that the combined effect of chemical and biological phosphorus fertilizer and foliar application of micronutrient on seed yield, its components, protein yield and its percentage, plant height and spike length were significant. Mean comparisons indicated that phosphorus bio-fertilizer + 150 kg.ha-1 superphosphate fertilizer produced highest number of spike per m2, seeds per spike, 1000-seed weight, harvest index, protein percentage, protein yield, plant height and spike length. The highest seed yield belonged to phosphorus bio-fertilizer + 150 kg.ha-1 superphosphate fertilizer and foliar application of micro-nutrients with 0.004 concentration and the lowest to the control treatment. Generally, to reduce the use of chemical fertilizers, cost of production and the prevention of soil contamination use of phosphorus bio-fertilizer +150 kg.ha-1 superphosphate fertilizer and spraying micronutrients with 0.004 concentration can be recommended to the farmers of the region.