Asian Journal of Biological Sciences1996-3351xxxx-xxxxScience International10.3923/ajbs.2018.24.32TerefeTsegaye AyalewTewodros Mohammed BeshirHussien 12018111Background and Objective: Sustainable soil quality improvement is among the top priority problem in the era of climate change. Organic sources of fertilizer have the potential to address both crop and soil quality issues. However, insignificant work has been done in Ethiopia to optimize the use of organic sources of fertilizer as a means for crop and soil quality improvement. Therefore, the current study was conducted to assess the quality performance of cabbage (Brassica oleracea L. var. capitata) and soil properties improvements in response to combined application of bioslurry and NP inorganic fertilizers. Materials and Methods: Treatments consisting of four levels of bioslurry (10 m3, 30 m3, 50 m3 and 70 m3 ha1) and five levels of NP (0, 25, 50,75 and 100% of the recommended rates) were laid out in randomized complete block design with three replications. Results: The interaction of bioslurry and N and P significantly affected head diameter, marketable yield, head firmness, head compactness, total soluble solids (TSS), pH and titratable acidity of cabbage juice. Among quality characters the highest marketable yield, head diameter, TSS concentration and pH were for the combined application of 50 m3 bioslurry with 75% of the recommended N and P, ha1. Higher titratable acidity was obtained with the combined application of 10 m3 bioslurry, ha1 with all levels of N and P. Application of bioslurry also found to improve soil properties. Conclusion: The combined application of 50 m3 ha1 bioslurry with 75% RNP can be recommended for quality cabbage production and soil properties improvement in the research area and similar agro-ecologies.]]>Knavel, D.E. and J.W. Herron,1981106540545Shahabz, M.,2011Hibiscus esculetus L.).]]>2011Haile, W.,2012Erythrina bruci as a source for soil nutrition on nitisols of South Ethiopia.]]>14371376Ferguson, I.B. and L.M. Boyd,20022002pp: 14-45pp: 14-45Karki, K.B.,20012001Liu, W.K., Q.C. Yang and L. Du,200924300307Yu, F.B., X.P. Luo, C.F. Song, M.X. Zhang and S.D. Shan,201060262268Abera, G. and E. Wolde-Meskel,20133153162Din, M., M. Qasim and M. Alam,200745171176Riad, G., G. Abdalla, A. Ahmed, A. Mahmoud and H. Amira,200936874Proulx, E., Y. Yagiz, M.C.N. Nunes and S. Banyal,20104512381249Samant, P.K.S., S.K. Sahu and D.N. Singh,199254549Olaniyi, J.O. and A.E. Ojetayo,20111215731582Naher, M.N.A., M.N. Alam and N. Jahan,2014Brassica oleracea var. capitata L.) in calcareous soils of Bangladesh.]]>122433Chowdhury, M.M.U., M.N. Anwar, J.U. Sarker, S.A. Firoj and M.Z. Uddin,199823705711Kaur, K., K.K. Kapoor and A.P. Gupta,2005168117122White, J.M. and R.B. Forbes,197689118120Haque, K.M.F., A.A. Jahangir, M.E. Haque, R.K. Mondal, M.A.A. Jahan and M.A.M. Sarker,2006414146Wong, J.W.C., K.K. Ma, K.M. Fang and C. Cheung,1999674346Peck, N.H.,198173679684Roe, N.E. and G.C. Cornforth,20008320327Subhan, A.,2008Brassica oleraceae L.) bulletin.]]>163741Arisha, H.M.E., A.A. Gad and S.E. Younes,2003307599Moyin-Jesu, E.I.,2015Brassica oleraceae L).]]>4291298Onyango, C.M., J. Harbinson, J.K. Imungi, S.S. Shibairo and O. van Kooten,201235342365Zekri, M. and T.A. Obreza,2003Shiraishi, M., H. Fujishima and H. Chijiwa,2010174113Nyoki, D. and P.A. Ndakidemi,2014Bradyrhizobium japonicum and phosphorus supplementation on the productivity of legumes.]]>3894910Khalid, K.A.,20012001Nurhidayati, N., U. Ali and I. Murwani,2016Brassica oleracea L. var. Capitata) under organic growing media using vermicompost and earthworm Pontoscolex corethrurus inoculation.]]>11513Zebider, A.,20112011