A study on the types of land preparations for rice and their effects on following upland crops [microform] - Gines, Hermenegildo C. 1943- (Quezon City Photoduplication Service,University of the Philippines Library, 1975)
Microfilmed wirh 11 other titles
Thesis (M.S.)--University of the Philippines, Los Banos.
Originally published in 1975.
Keywords: Soils -- Analysis; Soil science