International Journal of Soil Science1816-4978xxxx-xxxxAcademic Journals Inc.10.3923/ijss.2018.9.17OpachatTeeranuch AnusontpornpermSomchai ThanachitSuphicha KheoruenromneIrb 12018131Background and Objective: Paddy soils for growing Jasmine rice in Thailand are mostly low fertile and possess some soil constraints of which efficiency of fertilization is low. Biochar and organic wastes can be used to amend these soils and a source of additional major plant nutrients. This study aimed at comparing the mineralization under incubation condition of major plant nutrients among biochar and organic wastes. Materials and Methods: Rich husk biochar (RHB), rice husk ash (RHA), cassava starch waste (CSW) and cassava tails and stalks (CTS) were applied into six soils and incubated in laboratory. The experiment was arranged in a Completely Randomized Design with three replications. No amendment application (control), cassava starch waste (CSW), cassava tails and stalk (CTS), rice husk ash (RHA) and rice husk biochar (RHB) were compared. The amounts of available N, P and K were measured at 0, 3, 7, 14, 30 and 60 days during the incubation. One-way analysis of variance (ANOVA) of data was performed with mean separation and Duncans multiple range test being considered significant at the p<0.05 level and highly significant at the p< 0.01 level using SPSS software. Results: CSW and CTS contained high OM content, 727.2 and 663.7 g kg1, respectively, resulting in high C:N ratio even though they also had high total N content (6.83-7.79 g kg1). The CSW also had higher total K content (10.18 g kg1) than did CTS, RHA and RHB (1.3-5.41 g kg1). Total P quantity in these organic materials varied little and was in a small amount ranging from 0.76-1.28 g kg1. The RHA and RHB significantly released greater available N and P than did CSW and CTS while the CSW and CTS clearly releasing more available K. Available K was constantly released from these materials throughout the incubation period whereas most of available N was freed within1 month and the amount declined markedly afterwards. Release patterns of N, P and K were similar among soils, indicating that different soil properties played a little part in the availability of major plant nutrients released from these soil amendments. Conclusion: This study suggested a potential use of biochar and organic wastes as soil amendments and an enhancement of major plant nutrients in Jasmine rice growing paddy soils.]]>Bank of Thailand,20152015Homma, K., T. Horie, T. Shiraiwa, N. Supapoj, N. Matsumoto and N. Kabaki,2003Nong) in Northeast Thailand.]]>6147153Maclean, J.L, D.C. Dawe, B. Hardy and G.P. Hettel,20023rd Edn.,Pages: 253Pages: 253Sri-Aun, V.,20052005Fukai, S., P. Sittisuang and M. Chanphengsay,199817582Khunthasuvon, S., S. Rajastasereekul, P. Hanviriyapant, P. Romyen, S. Fukai, J. Basnayake and E. Skulkhu,19985999108Saenya, J., S. Anusontpornperm, S. Thanachit and I. Kheoruenromne,201573447Jedrum, S., S. Thanachit, S. Anusontpornperm and W. Wiriyakitnateekul,201493754Iqbal, T.,20162016Noble, A.D., G.P. Gillman, S. Nath and R.J. Srivastava,2001399911001Reichenauer, T.G., S. Panamulla, S. Subasinghe and B. Wimmer,200931573579Wang, Y., Y. Lin, P.C. Chiu, P.T. Imhoff and M. Guo,2015512-513454463Teutscherova, N., E. Vazquez, D. Santana, M. Navas, A. Masaguer and M. Benito,2017786674Kongthod, T., S. Thanachit, S. Anusontpornperm and W. Wiriyakitnateekul,201525790798Anusontpornperm, S.,20032003Mohammed, T.E.,20052005Keeney, D.R. and D.W. Nelson,19821982pp: 643-698pp: 643-698Bray, R.H. and L.T. Kurtz,1945593946Pratt, P.F.,19651965pp: 1023-1031pp: 1023-1031Steinbeiss, S., G. Gleixner and M. Antonietti,20094113011310Shenbagavalli, S. and S. Mahimairaja,20122249255Oguntunde, P.G., M. Fosu, A.E. Ajayi and N. van de Giesen,200439295299Karhu, K., T. Mattila, I. Bergstrom and K. Regina,20114 uptake and water holding capacity-results from a short-term pilot field study.]]>140309313Nilnoree, T., S. Anusontpornperm, S. Thanachit, I. Kheoruenromne and P. Petprapai,201644167178Havlin, J.L., S.L. Tisdale, W.L. Nelson and J.D. Beaton,20148th Edn.,Buresh, R.J., K.R. Reddy and C. van Kessel,20082008pp: 401-436pp: 401-436Kumar, K. and K.M. Goh, 199968197319Bhaduri, D., A. Saha, D. Desai and H.N. Meena,20161488698