Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094
December, 2015 Special Anniversary Review Issue.  Vol. 4(12): pp. 878-886
Copyright © 2015 Global Advanced Research Journals


Full Length Research Paper

Effect of Rice Husk Dust on Selected Soil Physical Properties and Maize Grain Yield in Abakaliki, South Eastern Nigeria

Uguru, B.N., Mbah, C.N. and Njoku, C.


Department of Soil Science and Environmental Management, Faculty of Agriculture and Natural Resources Management, Ebonyi State University, P.M.B. 053 Abakaliki, Ebonyi State, Nigeria


Accepted 08 December, 2015



This study was carried in 2012, 2013 and 2014 cropping seasons at Teaching and Research Farm of Faculty of Agriculture and Natural Resources Management, Ebonyi State University, Abakaliki to evaluate the effects of rice husk dust on soil particle size distribution, bulk density, total porosity, hydraulic conductivity and maize grain yield in Abakaliki South Eastern Nigeria. The experiment was laid out in randomized complete block design (RCBD) with sixteen treatments replicated three times. Data collected were analysed using the General Linear Model of SAS software in RCBD. The results showed same values of particle size distribution were observed in both the control and amended plots throughout the three cropping seasons. There was significant (P < 0.05) increase in total porosity, hydraulic conductivity and maize grain yield and a significant (P < 0.05) decrease in rice husk dust amended plots relative to control. Unburnt + burnt rice husk dust recorded the highest improvement in soil physical properties and maize grain yield studied. Unburnt rice husk dust improved the selected physical properties higher than burnt rice husk dust and the improvement increased with an increase in quantity of rice husk dust applied. While 10 tha-1 of unburnt + 15 tha-1 of burnt rice husk gave the highest maize grain yield. Higher bulk density, lower total porosity and higher saturated hydraulic conductivity were recorded in 90 days after planting than 45 days after planting. Therefore, since these rice husk dusts are cheap in the study area and causes environmental degradation if not well dispose, this study recommended that they should be used as soil amendments since it improved selected soil physical and maize grain yield studied.

KeywordsGrain yield, physical properties, rice husk dust and Ultisol.



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