Search Results       Your search for [author]Hervilla, Herman A. returned 1 record.           Competitive ability of weeds on nutrient uptake at different growth stages of cotton. by Hervilla, Herman A.; Polomok South Cotabato: CRDI, RRS, 1987. 6p. Subject: GOSSYPIUM; WEEDS; NUTRIENT UPTAKE; INJURIOUS FACTORS.          Add to Book Cart Relevance: 19.79%