L.S. Ayeni

Department of Agricultural Science, Adeyemi College of Education, PMB 520, Ondo City, Ondo State, Nigeria
Author    Correspondence author
Molecular Soil Biology, 2014, Vol. 5, No. 6   doi: 10.5376/msb.2014.05.0006
Received: 10 Jun., 2014    Accepted: 16 Jul., 2014    Published: 22 Jul., 2014

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Ayeni, 2014, Effect of Manufactured Organic Fertilizers on Soil Chemical Properties and Yield of Tomato (Lycopersicum lycopersicon) in Alfisol, Southwestern Nigeria, Molecular Soil Biology, Vol.5, No.6, 1-6 (doi: 10.5376/msb.2014.05.0006)

Field experiments were conducted between 2010 and 2012 to determine the effect of organic, organomineral and NPK fertilizers on soil chemical properties and yield of tomato in Ondo, south western Nigeria.  Organic (OG) and Organomineral Fertilizers (OMF) were each applied at the same rate of 2.5, 5 and 10 t/ha while NPK 15:15:15 fertilizer was applied at 300 kg/ha. The treatments were arranged on a Randomized Complete Block Design with three replicates. Relative to control, OG and OMF significantly increased (p<0.05) soil pH, OM, N, P, K, Ca, Mg, Fe, Cu, Zn  and Mn. Compared with control, OM applied at 5 t/ha most increased soil total N (143%), 10 t/ha OG had the highest percentage increase in Ca (98%), K (114%) and ECEC (221%), Organic fertilizer applied at 2.5 t/ha recorded the highest available P(695%), Zn (887%) and Cu (110%). Organomineral fertilizer applied at 10 t/ha had the highest increase in Fe (232%). Relative to control, OG, OMF and NPKF significantly increased (p>0.05) tomato fruit yield. Organomineral fertilizer applied at 5 t/ha had the highest increase in fruit weight of tomato.

Mineralization; Plant nutrients; Plant parameters; Organomineral fertilizer; Organic manures