@article{oai:ir.kagoshima-u.ac.jp:00001553,
 author = {SUMI, Akio and HAKOYAMA, Susumu and KATAYAMA, Tadao C.},
 journal = {Memoirs of the Faculty of Agriculture, Kagoshima University},
 month = {2016-10-27},
 note = {Characteristics of crop utilization in the tropics were examined by noting the difference in percentage of harvested area of each crop to land area under temporary and permanent crops (PI) among regions. The distribution of PI reflected the temperature and water requirements of respective crops, but some regional differences in the positioning of cereals, pulses and tuber crops were found. In the tropics, the positioning of root and tuber crops, which are excellent in energy productivity and in yielding stability, tended to be high. The culture of pulses was also given important positioning in inland countries of the tropics where people have difficulty in procuring animal protein, and in the semiarid zone where the amount and distribution of precipitation are uncertain and unreliable. It is concluded from the above results that crop utilization in the tropics has been characterized by key words such as 'yielding stability', 'combination of energy and protein production' and 'utilization of nitrogen-fixing crops'.},
 pages = {15--32},
 title = {Regional Characteristics of Crop Utilization},
 volume = {39},
 year = {}
}