1Alley M M, Scharf P C, Brann D E, et al. www. ext. vt. edu/pubs/grains/424--026/Publication Nomer 424--026, August, 1996.
2Otteson B N, Mergoum M, Ransom J K, et al. Agron. J, 2008, 100: 406.
3Scharf P C, Alley M M. Agronomy Journal, 1993, 85: 1186.
4Weisz R, Crozier C R, Heiniger R W. Agron. J, 2001, 93: 435.
5Phillips S B, Keahey D A, Warren J G, et al. Agron. J, 2004, 96: 591.
6Penuelas J, Filella I. Trends in Plant Science, 1998, 3(4): 151.
7Wood G A, Thomas G, Taylor J C. Developing Calibration Techniques to Map Crop Variation and Yield Potential Using Remote Sensing. in: Proc. Int. Conf. Precision Agric. , 4th, st. Paul, MN. ASA, CSSA, and SSSA, Madison, WI. 19---22, July, 1998.
8Wanjura D F, Hatfield J L. Trans. ASAE, 1987, 30 (3): 810.
9Serrano I., Filella I, Penuelas J. Crop Sci. , 2000, 40: 723.