2Combs G F. Selenium in global food systems. British Journal of Nutrition, 2001, 85(5): 517-547.
3Tan J A, Zhu W Y, Wang W Y, Li R B, Hou S F, Wang D C, Yang L S. Selenium in soil and endemic diseases in China. Science of the Total Environment, 2002, 284(1): 227-235.
4Li S J, Li W, Hu X, Yang L S, Xirao R D. Soil selenium concentration and Kashin-Beck disease prevalence in Tibet, China. Frontiers of Environmental Science and Engineering in China, 2009, 3(1): 62-68.
5Rayman M P. Selenium in cancer prevention: a review of the evidenceand mechanism of action. Proceedings of the Nutrition Society, 2005, 64(4): 527-542.
6Lyons G H, Stangoulis J, Graham R. High-selenium wheat: biofortification for better health. Nutrition Research Reviews, 2003, 16(1): 45-60.
7Wang J W, Wang Z H, Mao H, Zhao H B, Huang D L. Increasing Se concentration in maize grain with soil-or foliar-applied selenite on the Loess Plateau in China. FieM Crops Research, 2013, 150: 83-90.
8Curtin D, Hanson R, Lindley T N, Butler R C. Selenium concentration in wheat (Triticum aestivum) grain as influenced by method, rate, and timing of sodium selenate application. New Zealand Journal of Crop and Horticultural Science, 2006, 34(4): 329-339.
9Mao H, Wang J, Wang Z, Zan Y, Lyons C Zou C. Using agronomic biofortifieation to boost zinc, selenium, and iodine concentrations of food crops grown on the loess plateau in China. Journal of Soil Science and Plant Nutrition, 2014, 14(2): 459-470.
10Gupta U C, Winter K A, Sanderson J B. Selenium content of barley as influenced by selenite and selenate-enriched fertilizers. Communications in Soil Science and Plant Analysis, 1993, 24: 1165-1170.