Production of N, P, and K humates from palm oil mill effluent sludge and their effects on corn growth

by Shamsuddin, Rosliza
Published 2011

Controlling ammonia volatilization by mixing urea with humic acid, fulvic acid, triple superphosphate and muriate of potash

by Shamsuddin, Rosliza, Ahmed, Osumanu Haruna, Nik Ab. Majid, Nik Muhamad
Published 2009

Effect of N, P and K humates on dry matter of Zea mays and soil pH, exchangeable ammonium and available nitrate

by Ahmed, Osumanu Haruna, Shamsuddin, Rosliza, Nik Ab. Majid, Nik Muhamad, Jalloh, Mohamadu Boyie
Published 2012

Reduction of ammonia volatilization through mixing urea with humic and fulvic acids isolated from palm oil mill effluent sludge

by Shamsuddin, Rosliza, Ahmed, Osumanu Haruna, Nik Ab. Majid, Nik Muhamad, Jalloh, Mohamadu Boyie
Published 2009

Simple and rapid method of isolating humic acids from tropical peat soils (Saprists)

by Shamsuddin, Rosliza, Ahmed, Osumanu Haruna, Kasim, Susilawati, Nik Ab. Majid, Nik Muhamad, Jalloh, Mohamadu Boyie
Published 2009