Influence of internal drainage on the chemical and electrochemical changes of four flooded soils and on the growth of rice [microform].

Manylion Llyfryddiaeth
Prif Awdur: Krutkun, Tawin 1937-
Fformat: Visual Material
Iaith:English
Cyhoeddwyd: Quezon City Photoduplication Service, University of the Philippines Library 1977.
Pynciau: