共 11 条
[1]
Quantifying sources of error in ultrasonic measurements of citrus orchards. Zaman Q U,Schumann A W,Hostler H K. Applied Engineering in Agriculture . 2007
[2]
A system for adjusting the spray application to the target characteristics. Balsari P,Doruchowski G,Marucco P,et al. Agricultural Engineering International CIGR E-Journal . 2008
[10]
Software development for real-time ultrasonic mapping of tree canopy size[J] . A.W. Schumann,Q.U. Zaman.  Computers and Electronics in Agriculture . 2004 (1)