共 26 条
[1]
Economic feasibility of variable-rate nitrogen application utilizing site-specific management zones. Koch B,Khosla R,Frasier W M,et al. Agronomy Journal . 2004
[3]
Nitrogen fertilization optimization algorithm based on in-season estimates of yield and plant nitrogen uptake. Lukina E V,Freeman K W,Wynn K J,et al. Journal of Plant Nutrition . 2001
[4]
Optical sensor-based algorithm for crop nitrogen fertilization. Raun W R,Solie J B,Stone M L,Martin K L,Freeman K W,Mullen R W,Zhang H,Schepers J S,Johnson G V. Communications in Soil Science and Plant Analysis . 2005
[5]
Developing strategies for spatially variable nitrogen application in cereals. Welsh J P,Wood G A,Godwin R J,Taylor J C,Earl R,Blackmore S,Knight S M. PartⅡ:Wheat Biosystems Engineering . 2003
[6]
Identifying an in-season response index and the potential to increase wheat yield with nitrogen. Mullen R W,,Freeman K W,Raun W R,Jonhnson G V,Stone M L,Solie J B. Agronomy Journal . 2003
[9]
Improving nitrogen use efficiency in cereal grain production with optical sensing and variable rate application. Raun W R,Solie J B,Johnson G V et al. Agronomy Journal . 2002