RESIDUAL EFFECT OF MINERAL FERTILIZER AND ORGANO-MINERAL FERTILIZER ON A DEGRADED SOIL PLANTED TO MAIZE (ZEA MAYS L.) PRODUCTION

RESIDUAL EFFECT OF MINERAL FERTILIZER AND ORGANO-MINERAL FERTILIZER ON A DEGRADED SOIL PLANTED TO MAIZE (ZEA MAYS L.) PRODUCTION

1Aribisala, L..A.,1 Bello, W. B., 2Adebisi, A.A and 1Olla, N.O.

1Department of Agricultural Technology, 2Department of Forestry Technology Oyo State College of Agriculture and Technology, P.M.B 10, Igbo-ora Oyo State Nigeria.

Abstract                                                                     

Experiments were conducted during the 2007 and 2008 rainy season (May –September) at the Teaching and Research Farm of the University of Ibadan, SouthWestern Nigeria, to evaluate the residual effect of Mineral and Organo-Mineral fertilizers on growth and yield of Maize using different methods of application. ACR.91 SWAN1 maize variety was used as the test crop. A randomized complete block design was used with 11 treatments namely: control (no fertilizer), 2 and 1 t/ha-urea amended and unammended compost (buried and surface of Grade A and B), 6.7 and3.4t/ha (buried and surface of Grade A and B), N.P.K (300kg/ha-l, buried and surface) and replicated three times. Data were analysed using ANOVA and the means were separated using Duncan multiple range test. Result showed that OMF B1(buried) at 6.7t/ha gave the best performance in all characters observed with grain yield of 5.60tha-l followed by OMFA1 (buried) with 5.32tha-l. The buried methods of OMFB1, OMFA1 and NPK gave 5.60t/ha, 5.32t/ha and 2.99t/ha when compared with surface methods that followed the same trend with 4.10//t/ha , 4.15t/ha-1 and 2.40t/ha grain yield respectively with full dose. Organo-mineral fertilizer grade B performed better than the grade A at full dose which produced yields of 3.93t/ha and 2.38t/ha while NPK gave 1.90t/ha respectively. Half dose followed the same trend as shown in the full doses of grade A and B. The use of organic unammended fertilizer (OMFB1) gave a better result in residual maize growth and yield parameters compared to that of the control which grain yield of (2.10t/ha).  Residual nutrients of OMFB1 (buried) sustained maize plant growth and had yields, which were 62.5% higher than the control.

Key Words: N.P.K, Organo-Mineral, Buried, Surface And Residual, Maize

Last modified on Monday, 16 February 2015 12:57

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