Biological constraints to high yields on some rice farms in Nueva Ecija, Philippines [microform]

Biological constraints to high yields on some rice farms in Nueva Ecija, Philippines [microform]

書目詳細資料
主要作者: Abilay, Wenceslao P.
格式: Visual Material
出版: Quezon City Photoduplication Service. University of the Philippines Library 1981.
主題:
Rice > Philippines > Nueva Ecija.
Rice research > Philippines > Nueva Ecija.