抄録
The relation between locations of mulberry-fields and konnyakuimo (Hydrosme rivieri)-fields was investigated at a hamlet located at the south-eastern foot of volcano Komochi in Gunma Prefecture (Nakago, Shirosatoi-mura, kitagunma-gun, Gunma Prefecture).
The soil is not an important condition of location.
Mulberry-fields keep aloof from any land of frost-damage, which is more conspicuous on flat ground rather than on slope looking toward the south. Being suited to flat ground, however, konnyaku-imo is raised even on the land suffered from frost.
Mulberry-fields belonging to their respective farm-houses can be divided into two kinds: one cultivated on flat ground in the vicinity of the farm-houses, and the other on slope at a disfance. Rather level ground situated between these two kinds of mulberry-fields is chosen for konnyaku-imo fields. The relation between mulberry and konnyaku-imo lies in the rivalry swayed by the economical condition that which of them is more important as a market-oriented crop.
The circumstances in regard to domain prevnt people from making the most of natural conditions. Production would be increased much if land owned by the farmers were exchanged taking such things into consideration as soil, frost-damage, the distance from the farmhouses to their arable land, slope, etc.
