Soil characteristics and the paddy yield in northern Thailand
北タイにおける土壌の特性と水稲の収量

Tomoo Hattori, Tadayo Watabe, Ponpit Piyapongse, Keizaburo Kawaguchi
Tonan ajia kenkyu  
doi:10.20495/tak.6.2_335 fatcat:oaln63tfkvdtxkhsqfpb4i2wia