1. Abbott J (1969) Economic factors affecting the distribution of world protein sources. In: Milner M (ed) Protein enriched cereal foods for world needs. American Association of Cereal Chemists. St. Paul, Minnesota
2. AOAC (1980) Official Methods of Analysis. 13th edn. Washington D.C.: Association of Official Analytical Chemists
3. Bailey AV, Piccolo B, Sumrell G, Burton GW (1980) Some effects of nitrogen fertilizer on the chemical composition of pearl millet grain. J Agric Food Chem 28:866–870
4. Barg GS, Ryan J, Berger KC (1982) Effect of nitrogen fertilization on yield, protein and amino acids of irrigated Mexipak wheat. Iran Agric Res 1(1):17–24
5. Bauer A, Young RA, Vasey H (1966) How nitrogen affects protein and test weight. ND Farm Res 24:18–22