Abstract
The transition of field-temperature in the warmer district of Kyushu was measured in wheat cultivating season; and the results were shown in Table 1.
The surface-soil temperature in early summer seem too high for the crop growth.
The lasting low temperature that causes cold damage does not frequently occur in this district.
The plant cover influences the vertical distribution of temperature in May. (Fig. 1)
The relations between the temperature in the meteorological observation field and that in the cultivating field are approximately linear. (Table 2)
The daily-range decreasing index (p) of soil-temperature and thermal-diffusivity (a2) are shown in Table 3.
