1. Aggarwal P, Goswami B (2003) Bed planting system for increasing water use efficiency of wheat (Triticum aestivum) grown on Inceptisol (Typic Ustochrept). Indian J Agric Sci 73(8):422–425
2. Anderson WP (1983) Weed–crop competition. In: Weed science principles, 2nd edn. West Publication Co., St. Paul Minn, pp 33–42
3. Anonymous (2017a) FAOSTAT 2017. http://www.fao.org/worldfoodsituation/csdb/en/
4. Anonymous (2017b). https://www.statista.com/statistics/237908/global-top-wheat-producing- countries/
5. Anonymus, http://www.saskwheatcommission.com/wp-content/uploads/2016/09/2017.08.08-Wheat-Market-Outlook-and-Price-Report.pdf