Search Results       Your search for [author]Lapitan, Lina C. returned 1 record.           Effects of digester sludge as fertilizer on sweet potato. by Lapitan, Lina C.; Manila: BPI, 1986. 4p. -(Vol.1; No. 33). Subject: IPOMOEA BATATAS; FERTILIZER APPLICATION; YIELDS; COST BENEFIT ANALYSIS; SEWAGE PRODUCTS; FERTILIZERS.          Add to Book Cart Relevance: 21.32%