Time of nitrogen application on dry seeded rice grown after mungbean established at different tillage levels - Piroge, Suvanjinda 1951- (1980)
Appendix: 137-148.5
Bibliography: leave 121-136.
Mimeographed.
Thesis (M.S.)--University of the Philippines, Los Banos.
Vita.
Keywords: Rice -- Fertilizers and manures. -- Philippines; Nitrogen fertilizers -- Philippines