4G. Stevcnsa, A. Wrathera, et al. Predicting rice yield response to midseason nitrogen with plant area measurements [J]. Agron. J. , 2008, 100: 387-392.
5Singh N, Casady W W, et al. Machine vision based nitrogen man- agement models for rice EJ-. TransoftheASAE, 1996, 39(3) : 1899 -1904.
6Franccsco Licausi. Regulation of the molecular response to oxygen limi- tations in plants [-J-. New Phytoloki. st, 2011, 190: 550-555.
