PERBAIKAN SIFAT FISIK DAN KIMIA TANAH LEMPUNG BERPASIR MELALUI APLIKASI BAKTERI Lactobacillus fermentum
Abstract
The ability of sandy loam soils to hold water and nutrients is very low because of unstable soil aggregation. One of soil bacteria that can improve soil aggregates is Lactobacillus fermentum that is able to produce producing exopolysaccharide. The objective of this study was to explore the effect of application of Lactobacillus fermentum on improvement of chemical and physical properties of a sandy loam soil. Lactobacillus fermentum isolated from shrimp paste was used for soil aggregation tests. The treatments were P0 (450 mL distilled water), P1 (100 mL selected media + 350 mL distilled water with 1.67 x 104bacteria), P2 (200 mL selected  media + 250 mL distilled water with 2.13 x 105 bacteria, dan P3 (400 mL selected media + 50 mL distilled waiter with 3.54 x 106bacteria. The results showed that molasses give the best effect for bacterial growth compared with other media (coconut water, legen and sugar solution). Application of Lactobacillus fermentum significantly increased aggregate stability of the soil studied. In the initial analysis, soil aggregate stability was 0.48 mm (less stable. After incubation period up to 30 days the P1, P2 and P3 treatments increased aggregate stability by 1.27 mm (very stable), 1.43 mm (very stable), and 2.05 mm (very very stable), respectively. Lactobacillus fermentum also gave effect to the increase in organic matter, available P and K available. However, this bacterium did not give effect to an increase in available N and soil pH.
References
Anas, I. 1989. Biologi Tanah dalam Praktek. Departemen Pendidikan dan Kebudayaan Direktorat Jendral Pendidikan Tinggi Pusat Antar Universitas Bioteknologi Institut Pertanian Bogor. Hal : 65-72
Anwar, R. 2000. Bakteri Gram-positif dari air kemih penderita infeksi saluran kemih. Kongres Nasional IV PAMKI: Semarang.
Bhardwaj, Shainberg, Goldstein, Warrington & Levy. 2007. Water retention and hydraulic conductivity of cross-linked polyacrylamides in sandy soils. Soil Science Society of America Journal 71(2), 406-412.
Caesar-TonThat, T.C. and Cochran, V.L. 2001. Role of a saprophytic Basidiomycete soil fungus in aggregate stabilization. In: D.E. Stott et al. (Eds.). Sustaining the Global Farm. 10th International Soil Conservation Organization Meeeting held May, 24-29, 1999 p. 575-579.
Fardiaz, S. 1989. Mikrobiologi Pangan. Direktorat Jenderal Pendidikan Tinggi Pusat Antar Universitas IPB, Bogor.
Hilda, R. and Reynaldo. F. 2000. Phosphate solubilizing bacteria and their role in plant growth promotion . Department of Microbiology, Cuban Research Institute on Sugarcane By-Products (ICIDCA). Havana, Cuba
Irianto, K. 2002. Mikrobiologi: Menguak Dunia Mikroorganisme Jilid 2. CV. Yrama Widya. Bandung.
Irianto, K. 2007. Mikrobiologi. Yrama Widy, Bandung. Hal 75-94.
Kim, J.S., Reuhs, B.L., Rahman, M.M., B. Ridley, B. and Carlson, R.W. 1996. Separation of bacterial capsular and lipopolysaccharides by preparative electrophoresis. Glycobiology 6 (4), 433-437.
Kurniawan, A.P. 2004. Pembatan Etanol dari Sampah Pasar Melali Poses Hidrolisis Asam dan Fermentasi Bakteri Zymomonas mobilis. Jurusan Teknik Lingkungan FTP-ITS: Surabaya.
Laksmita, Dariah, A. dan Goenadi, D.H. 2008. Peningkatan Kemantapan Agregat Tanah Mineral Oleh Bakteri Penghasil Eksopolisakarida. Balai Penelitian Bioteknologi Perkebunan: Bogor.
Lawton, M. 1955. Difco Manual Of Dehydratd culture Media and Reagent for Microbiology and clinical Laboratory Procedures. 9th edition. Michigan Detroit Difco Laboratories Page 32-33, 93.
Madigan. 2009. Brock Biology of Microorganism. Twelfth Edition. Pearson International Edition : San Fransisco. pp 121-137
Monod, J. 1949. The growth of bacterial cultures. Annual Review of Microbiology 3, 371-394.
Murray G.C. and Hesterberg D. 2006. Iron and phosphate dissolution during Abiotic reduction of ferrihydrite-boehmite mixtures. Soil Science Society of America Journal 70, 1318-1327.
Pasaribu, H.F., Dalimunthe, N. and Poeloengan, M. 2009. Pengobatan Pencegahan Penyakit Ikan Bercak Merah. Prosiding Seminar Nasional II Penyakit Ikan dan Udang. Editor A.Rukyani dkk. Bultkanwar Bogor. 12(4): 124–137.
Pham, P.L., Dupont, I., Roy, D., Lapointe, G. and Cerning, J. 2000. Production of exopolysaccharide by Lactobacillus rhamnosus R and analysis of its enzymatic degradation during prolonged fermentation. Applied Environmental Microbiology 66(6), 2302-2310.
Rao, S. 1994. Mikroba Tanah dan Pertumbuhan Tanaman. Universitas Indonesia Press: Jakarta. Hal 79
Sutherland, I.W. 1997. Microbial exopolysaccharides structural subtleties and their consequences. Pure & Applied Chemistry 69(9), 1911-1917.
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