4Broner, I., W. Bausch, D. Westfall, R. Khosla. Decision support for crop management using remote sensing[A]. Preceedings of the World Congress of Computation in Agriculture and Natural Resources[C]. 13th -15th , March, 2002, Iguacu Falls, Brazil PP: 339-346.
5Bausch, W.C., H.R. Duke. Remote sensing of plant nitrogen status in corn[J]. Transactions of the ASAE. 1996, 39.. 1869-1875.
6Tumbo, S.D., D.G. Wagner, P. H. Heinemann. On- the-go sensing of chlorophyll status in corn[A]. 2001 ASAE Annual Meeting[C], Sacramento, California, USA. 2001, ASAE paper No. 01-1175.
7Tumbo, S.D., D.C. Wagner, P.H. Heinemann. Hyperspectral-based neural network for predicting chlorophyll status in corn[J]. Transactions of the ASAE. 2002, 45(3): 825-832.
8H. Noh, Q. Zhang, B. Shin, etc. A neural network model of maize crop nitrogen stress assessment for a multispectral imaging sensor[J]. Biosystems Engineering, 2006, 94 (4): 477- 485.
9H. Nob, Q. Zhang, S. Han, etc. Dynamic calibration and image segmentation methods for multispectral imaging crop nitrogen deficiency sensors[J]. Transactions of the ASAE,2005, 48(1): 393-401.
10T.P.Dawson, P.J. Curran, P.North. The propagation of foliar biochemical absorption features in forestcanopy reflectance., a theoretical analysis[J]. Remote Sensing of Environment, 1999,67(2):147-159.
