[1] [1] Cui R X, Lee B W. Korean Journal of Crop Science, 2002, 47: 390.

[2] [2] Xue L, Cao W, Luo W, et al. Agronomy Journal, 2004, 96: 135.

[3] [3] Nguyen H T, Lee B W. European Journal of Agronomy, 2006, 24: 349.

[4] [4] Li Y, Chen D, Walker C N, et al. Field Crops Research, 2010, 118: 221.

[5] [5] Jongschaap R E E, Booij R. International Journal of Applied Earth Observation, 2004, 5(3): 205.

[6] [6] Jia L, Chen X, Zhang F, et al. Journal of Plant Nutrition, 2004, 27(3): 441.

[7] [7] Pagola M, Oritiz R, Irigoyen I, et al. Computers and Electronics in Agriculture, 2009, 65: 213.

[8] [8] Lailiberte A S, Rango A, Herrick J E, et al. Journal of Arid Environments, 2007, 69: 1.

[10] [10] Guevara-Escobar A, Tellez J, Gonzalez-Sosa E. Agroforestry Systems, 2005, 65: 175.

[11] [11] Behrens T, Diepenbrock W. Journal of Agronomy and Crop Science, 2006, 192: 295.

[12] [12] Richardson M D, Karcher D E, Purcell L C. Crop Science, 2001, 4: 1884.

[13] [13] Lee K J, Lee B W. Journal of Crop Science and Biotechnology, 2011, 14(2): 151.

[14] [14] Lee K J, Lee B W. European Journal of Agronomy, 2013, 48: 57.

[17] [17] Willmott C J, Ackleson S G, Davis R E, et al. Journal of Geophysical Research, 1985, 90: 8995.