Secret crops - Urasakumotsu

...(3) Considering the meteorological and geographical differences in the cultivation area, crops are divided into cold, temperate, and tropical crops according to the difference in temperature, or into dry and wetland crops according to the difference in rainfall. (4) Focusing on the chronological relationship of cultivation, they are divided into front crops and back crops, or front crops and back crops. (5) When there is a master-slave relationship between the cultivation purposes, they are divided into main crops, side crops, accompanying crops, etc. ...

*Some of the terminology that refers to "underground crops" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…(3)栽培地域の気象地理的な相違を考慮し，気温のちがいによって寒地作物，温帯作物，熱帯作物に，あるいは降雨量の違いによって乾燥地作物と湿地作物とに分ける。(4)栽培の経時的前後関係に注目して，表（おもて）作物と裏作物とに，あるいは前作物と後作物とに分ける。(5)栽培の目的に主従関係がある場合には，主作物，副作物，随伴作物などに分ける。…

※「裏作物」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報