A PORTABLE FIELD ULTRASONIC SENSOR FOR CROP CANOPY CHARACTERIZATION

被引:13
作者
SHIBAYAMA, M [1 ]
AKIYAMA, T [1 ]
MUNAKATA, K [1 ]
机构
[1] NATL AGR RES CTR,PROJECT RES TEAM 6,TSUKUBA,IBARAKI 305,JAPAN
关键词
D O I
10.1016/0034-4257(85)90062-8
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
引用
收藏
页码:269 / 279
页数:11
相关论文
共 16 条
[1]  
Akiyama T., 1972, Proceedings of the Crop Science Society of Japan (Nihon Sakumotsugakkai Kiji), V41, P126
[2]  
AKIYAMA T, 1975, THESIS KYUSHU U FUKU
[3]  
ARMY T. J., 1967, Harvesting the sun. Photosynthesis in plant life., P321
[4]   A COMPARISON OF 3 ULTRASONIC MACHINES (SCANOGRAM, DANSCAN AND AIDD (NZ)) AND VISUAL ESTIMATES FOR PREDICTING CARCASS COMPOSITION OF LIVE CATTLE [J].
BASS, JJ ;
WINN, G ;
PAULSEN, WD .
JOURNAL OF AGRICULTURAL SCIENCE, 1982, 99 (OCT) :337-341
[5]  
Buckingham F., 1982, Implement and Tractor, V97, pC6
[6]   SUITS REFLECTANCE MODELS FOR WHEAT AND COTTON - THEORETICAL AND EXPERIMENTAL TESTS [J].
CHANCE, JE ;
LEMASTER, EW .
APPLIED OPTICS, 1977, 16 (02) :407-412
[7]   ULTRASONIC INSTRUMENTATION - PRINCIPLES, METHODS AND APPLICATIONS [J].
CRECRAFT, DI .
JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1983, 16 (03) :181-189
[8]  
GAWDA H, 1983, T AM SOC AGR ENG, P250
[10]   VARIATION OF DIRECTIONAL REFLECTANCE FACTORS WITH STRUCTURAL-CHANGES OF A DEVELOPING ALFALFA CANOPY [J].
KIRCHNER, JA ;
KIMES, DS ;
MCMURTREY, JE .
APPLIED OPTICS, 1982, 21 (20) :3766-3774