International Journal of Soil Science1816-4978xxxx-xxxxAcademic Journals Inc.10.3923/ijss.2016.123.129PagiuSalapu UtomoW.H. SuprayogoD. NugrohoW.H. 42016114Background and Objective: Due to mismanagement, the red yellow podzolic of Bone sugarcane plantation has experienced degradation due to soil compaction. To overcome this problem an experiment was conducted to study the possibility of restoring this degraded red yellow podzolic by subsoiling and incorporation of boiler ash into the sub soil. The experiment was also aimed to study the effect of reducing tillage operation on cane yield and sugar content. Materials and Methods: The experiment was carried out on bone sugarcane plantation, South Sulawesi, Indonesia. The experiment treatments were: (T1) Conventional tillage (plowing-plowing-harrowing-furrowing), (T2) Reduced tillage (plowing-harrowing-furrowing), (T3) Minimum tillage (plowing-furrowing), (T4) Subsoiling-furrowing and (T5) Subsoiling-furrowing and incorporation of boiler ash. These 5 treatments were arranged in a randomized block design with 4 replications. Results: Subsoiling alone did not enough to restore the degraded red yellow podzolic of Bone sugarcane plantation. The highest cane and sugar yield was obtained by subsoiling combined with incorporation of boiler ash (T5). This treatment (T5) produced the highest sugar yield (8.96 t ha1). The highest yield of T5 treatment was associated with a better rooting system due to improvement of soil qualities. Boiler ash incorporation increased soil pH and decreased Al saturation. Reduction of tillage operation did not decrease the cane and sugar yield. Conclusion: Restoration of degraded red yellow podzolic of Bone sugarcane plantation could only be done by a combination of subsoiling with incorporation of boiler ash (T5). It was suggested that boiler as can be used as replacement of lime material for acid soil. Reducing tillage operation (plowing-harrowing-furrowing) could be suggested as the best tillage system for light texture of red yellow podzolic at bone sugar plantation.]]>Prasetyo, B.H. and D.A. Suriadikarta,2006253947, (In Indonesian)Barzegar, A.R., S. Mahmoodi, F. Hamedi and F. Abdolvahabi,200575968Braunack, M.V.,19911991Utomo, W.H. and A.R. Dexter,198133623637Toharisman, A.,20072007Ashraf, M., M.S. Sabir, M. Ahmed and M. Younis,200316971Kumar, S., S.K. Saini and A. Bhatnagar,2012Saccharum species hybrid) in sugarcane plant-ratoon cropping system.]]>14398404McIntyre, G. and C. Barbe,1989205862590Haris, K.W.,20112011Usaborisut, P. and T. Niyamapa,20105269273Hashemi, A. and A.R. Shokuhfar,2015102531Utomo, W.H., S.M. Sitompul and M. van Noordwijk,1992152944Howeler, R., A. Tongglum, S. Jantawat and W.H. Utomo,19981998Islami, T., B. Guritno and W.H. Utomo,2011Manihot esculenta Crantz) based cropping systems and associated soil quality changes in the degraded tropical uplands of East Java, Indonesia.]]>493139Lehmann, J. and S. Joseph,2009Pages: 416Pages: 416Widowati, W.H. Utomo, B. Guritno and L.A. Soehono,2012Zea mays L.) in green house experiment.]]>4255262Khan, M.J. and M. Qasim,200830281289Sulaeman, Suparto and Eviati,20052005Theng, B.K.G.,2012Pages: 511Pages: 511Lehrsch, G.A., R.E. Sojka and A.C. Koehn,2012189-190199206Braunack, M.V., J.S. Hewitt and A.R. Dexter,197930653667Braunack, M.V., D. McGarry, L.R. Crees and N.V. Halpin,199921101107Grange, I., P. Prammanee and P. Prasertsak,200524650Harris, R.F., G. Chesters and O.N. Allen,196618107169Masulili, A., W.H. Utomo and M.S. Syechfani,201023947