共 4 条
[1]
Use of spectral radiance for correcting in-season fertilizer nitrogen deficiencies in winter wheat. Stone M L,Solie J B,Raun W R,et al. Transactions of the American Society of Agricultural Engineers . 1996
[2]
Time of nitrogen application: Effects on winter wheat and residual soil nitrate. Boman R K,Westerman R L,Raun W R,et al. Soil Science Society of America Journal . 1995
[3]
"Remote Sensing and Image Interpretation,". Lillesand, T. M,and R. W Kiefer. . 1994
[4]
Optical sensor based field element size and sensing strategy for nitrogen application. Solie J B,Raun W R,Whitney R W,et al. Transaction of the ASAE . 1996

