1. Abaid-Ullah M, Hassan MN, Jami M, Brader G, Shah MKN, Sessitsch A, Hafeez FY (2015) Plant growth promoting rhizobacteria: an alternate way to improve yield and quality of wheat (Triticum aestivum). Int J Agric Biol 17:51–60
2. Abd El-Hady BA (2007) Effect of zinc application on growth and nutrient uptake of barley plant irrigated with saline water. J Appl Sci Res 3:431–436
3. Ahlawat IPS, Gangaiah B, Ashraf ZM (2007) Nutrient management in chickpea. In: Yadav SS, Redden R, Chen W, Sharma B (eds) Chickpea breeding and management. CAB International, Wallingford, pp 213–232
4. Alloway BJ (2008) Zinc in soils and plant nutrition. International Zinc Association (IZA) and IFA. Brussels, Belgium and Paris, France
5. Appleby CA, Bergersen FJ (1980) Preparation and experimental use of leghaemoglobin. In: Bergersen FJ (ed) Methods for evaluating biological nitrogen fixation. Wiley, Chichester, pp 315–335