Improvement of weak foundation of paddy fields by subsurface drainage system fie
Yamashita, J.
Improvement of weak foundation of paddy fields by subsurface drainage system fie - Yatabe 1984 - 71 p. - No. 18; Japan, Tropical Agricu .
Improvement of weak foundation of paddy fields by subsurface drainage system fie - Yatabe 1984 - 71 p. - No. 18; Japan, Tropical Agricu .