راستین، ص. (1384). مد یریت پاید ار از د ید گاه بیولوژی خاک. ضرورت تولید صنعتی کود های بیولوژیک د ر کشور. نشر آموزش کشاورزی. سازمان تحقیقات، آموزش و ترویج کشاورزی، وزارت کشاورزی، تهران، ایران.
قربانی، غ.، (1388).اصول پرورش گاو شیری (ترجمه). مرکز نشرد انشگاهی. د انشگاه صنعتی اصفهان. اصفهان. ایران.
ملکوتی، م. ج. و م. بابااکبری (1384). ضرورت افزایش کارایی کود های نیتروژنه د ر کشور، قسمت اول : تعاریف و مثالهای کاربرد ی. موسسه تحقیقات خاک و آب. نشریه فنی شماره 425.
ملکوتی، م. ج.، کشاورز، پ. و ن. کریمیان. (1387). روش جامع تشخیص و توصیه بهینه کود برای کشاورزی پاید ار. انتشارات د انشگاه تربیت مد رس. تهران. ایران.
Anjum, N. A., Gill, S.S., and R. Gill. (2014). Plant Adaptation to Environmental Change: Significance of Amino Acids and their Derivatives. Published by CABI, Oxfordshire, UK.
Aslam, M., Travis R. L., and D.W. Rains. (2001). “Differential effect of amino acids on nitrate uptake and reduction sys-tems in barley roots.” Plant Science 160: 219–228.
Chen, G. and X. Gao. (2002). Effect of partial replacement of nitrate by amino acid and urea on nitrate content of non-heading Chinese cabbage and lettuce in hydroponics (Chinese). Sci. Agri. Sinica, 35: 187–191.
Chen, Z., J. Huang, J. He and K. Cai. (1997). Influence of L-tryptophan applied to soil on yield and nutrient uptake of cabbage (Chinese). Acta Ped. Sinica, 34: 200–205.
Chen, T. H. H. and N. Murata. (2011). Glycinebetaine protects plants against abiotic stress: mechanisms and biotechno-logical applications. Plant, Cell & Environment, 34: 1–20.
El-Naggar, A., d. N. A., El-Araby and H. Høgh-Jensen (2009). Simultaneous uptake of multiple amino acids by wheat. Journal of Plant Nutrition 32: 725-740.
Fan, X., F. Li and D. Kumar. (2004). Fertilization with a new type of coated urea: Evaluation for nitrogen efficiency and yield in winter wheat. Journal of Plant Nutrition 25: 853-865.
Filner, P. (1966). Regulation of nitrate reductase in cultured tobacco cells. Biochim. Biophys. 118: 299-310.
Gamborg, O. L. (1970). The effects of amino acids and ammonium on the growth of plant cells in suspension culture. Plant Physiol. 45: 372-375.
Gunes, A., Post, W.N.K. Kirkby, E.A. and M. Aktas. (1994). Influence of partial replacement of nitrate by amino acid nitrogen or urea in the nutrient medium on nitrate accumulation in NFT grown winter lettuce. J. Plant Nutr. 17: 1929–1938.
Gunes, A., Inal, A. and M. Aktas. (1996). Reducing nitrate content of NFT grown winter onion plants (Allium cepa L.) by partial replacement of NO3 - with amino acid in nutrient solution. Sci. Hortic., 65: 203–208
Hassanpanah, D., E. Gurbanov, A. Gadimov and R. Shahriari. (2008). Shortening transplanation periods of potato plantlets by use of potassium humate and kadostim and their effects on mini-tuber productions. Pakistan journal of bio-logical sciences 11(10): 1370-1374.
Kalra, Y.P., (1998). Handbook of refrence methods for plant analysis.CRC press, Boca Raton. USA.
Linko, R., A. Lapvetelainen, P. Laakso and H. Kallio. (1989). Protein Composition of a High-Protein Barley Flour and Bar-ley Grain. Cereal Chem. 66(6): 478-482.
Liu, X. Q., K. Y. Ko, S. H. Kim and K. S. Lee. (2007). Enhancement of nitrate uptake and reduction by treatment with mixed amino acids in red pepper (Capsicum annuum L.). Acta Agriculturae Scandinavica Section B-Soil and Plant Science 57: 167-172.
Liu, X. Q., K. Y. Ko, S. H. Kim and K. S. Lee. (2008). Effect of Amino Acid Fertilization on Nitrate Assimilation of Leafy Radish and Soil Chemical Properties in High Nitrate Soil. Communications in Soil Science and Plant Analysis 39: 269–281.
Liu, C.W., Sung, Y., Chen,B. and H. Lai. (2014). Effects of Nitrogen Fertilizers on the Growth and Nitrate Content of Lettuce (Lactuca sativa L.). Int. J. Environ. Res. Public Health. 11(4): 4427-4440.
Majerowicz, N., G. B. Kerbauy, C. C. Nievola and R. M. Suzuki. (2000). Growth and nitrogen metabolism of Catasetum fimbriatum (Orchidaceae) grown with different nitrogen source. Environ. Exp. Bot. 44: 195–206.
Marschner, H., E. Kirkby and I. Cakmak. (1996). Effect of mineral nutritional status on shoot-root partitioning of pho-toassimilates and cycling of mineral nutrients Journal of Experimental Botany 47: 1255–1263.
Mobini, M., Khoshgoftarmanesh, A.H., and Ghasemi, S. 2014. The effect of partial replacement of nitrate with arginine, histidine, and a mixture of amino acids extracted from blood powder on yield and nitrate accumulation in onion bulbScien-tia Horticulturae. 176: 232–237
Muhammad, A., L. T. Robert and D. W. Rains. (2001). Differential effect of amino acids on nitrate uptake and reduction systems in barley roots. Plant Science 160 (2001) 160: 219–228.
Owen, A. G. and D. L. Jones. (2001). Competition for amino acids between wheat roots and rhizosphere microorganisms and the role of amino acids in plant N acquisition. Soil Biology & Biochemistry 33: 651-657.
Park, C. S. (1988). Feeding barley to dairy cattle. 46:18-19., North Dakota Farm Research. 46: 18-19.
Persson, J. and T. N¨asholm. (2003). Regulation of amino acid uptake by carbon and nitrogen in Pinus sylvestris. Planta 217: 309-315.
Thornton, B. and D. Robinson. (2005). Uptake and assimilation of nitrogen from solutions containing multiple N sources. Plant Cell and Environment 28 :813-821.
Vitousek, P. M., J. D. Aber, R. W. Howarth, G. E. Likens, P. A. Matson, D. W.Schindler, W. H. Schlesinger and D. G. Tilman. (1997). Human alteration of the global nitrogen cycle: Sources and consequences. Ecological Applications 7: 737-750.
West, C.P., D.W. Walker, R.K. Bacon, D.E. Longer, and K.E. Turner. (1991). Phenological analysis of forage yield and quality in winter wheat. Agron. J. 83: 217-224.