MOTOMURA, S., SEIRA YOSAKOL, A. and CHOLITKUL, W., 1984, Study on soil productivity of paddy fields in Thailand
Tech. Bull., Trop. Agr. Res. Center, Japan, No. 19
This study was carried out to analyse the production characteristics of paddy soils in Thailand in relation to soil fertility with a view to contributing to the advancement of rice production. For this purpose, observations of soil profiles were made to analyse the soil conditions of the paddy fields, which cover various kinds of soils in representative rice growing areas throughout the whole country. Physical, chemical and clay mineralogical analyses of the soil samples collected during the field observation of the profiles were conducted to identify the soil factors limiting rice production and/or the extent of possible soil damage among the various kinds of soil groups. Based on these results, several appropriate soil management and fertilization practices were suggested.