Chemical Properties Changes and Releasing Pattern of Ammonium and Nitrate on Ultisol Darmaga Fertilized by Fishpond Sediment-Based Pellet Fertilizer
Perubahan Sifat Kimia dan Pola Pelepasan Amonium dan Nitrat pada Ultisol Darmaga yang Diberi Pupuk Pelet Berbahan Dasar Lumpur Kolam Ikan
Fishpond sediment-based pellet fertilizer enriched with fishpond water and goat manure was made to decrease load of nitrate contamination in water bodies. The objective of this research was to evaluate the changes of some soil chemical properties and the releasing pattern of nitrogen (N)-ammonium (N-NH4+) and N-nitrate (N-NO3-) in Ultisol Darmaga which was fertilized by pellet fertilizer. The rate of pellet fertilizer which was applied to the soil was 6.10 g of pellets/300 g of soil or equivalent to 40.8 ton of pellets ha-1. This rate was based on the amount of N fertilizer for sweet corn that was 200 kg N ha-1. The pots were incubated in 1 week, 2 weeks, 3 weeks, 4 weeks, 5 weeks, 6 weeks, 7 weeks, 8 weeks, 10 weeks, and 15 weeks at field capacity condition. Soil analyses were conducted after the end of each incubation period. The results showed that in the end of incubation period, the application of pellet fertilizer increased soil pH, organic carbon, cation exchange capacity, exchangeable bases, N-NH4+, and N-NO3- and total available N which is the total amount of N-NH4+, and N-NO3- compared to those of control soil. As for the releasing pattern of N-NH4+ and N-NO3-, in the 1 week to 7 weeks of incubation N-NH4+ was dominant and decreased after that. The decrease of N-NH4+ was followed by the increase of N-NO3-. The N-NO3- was dominant from 8 weeks to 15 weeks of incubation. The results recommended that fishpond sediment-based pellet fertilizer improved the soil properties and provided available N.
Bohn. H.L, B. L. Mc Neal, and G.A.O. Connor. 1979. Soil Chemistry. John Willey & Sons. 155-171pp. New York
Escobar, M.E.O. dan N.V. Hue. 2008. Temporal changes of selected chemical properties in three manure amended soils of hawaii. Bioresource Technology, 99:8649-8654.
Follet, R.F., E.A. Paul, and E.G. Pruessner. 2017. Soil carbon dynamics during a long-term incubation study involving13C and 14C measurements. Soil Sci., 172:189-208.
Gulser, C., Z. Demir Z and I.C. Serkan. 2010. Changes in some soil properties at different incubation periods after tobacco waste application. J. of Environ. Biology, 31(5):671-674.
Hartono, A., K. Yokota, and T. Baba. 2012. Survey of water quality and soil fertility of fresh water fish cultivation ponds in Bogor, Indonesia. Regional Workshop Water, Land and Southeast Asia Food Sovereignty. 41 p. Bogor
Hartono A, K. Yokota, T. Baba and B. Subroto. 2016. Changes in some soil chemical propertis and production of sweet potato, Ipomoea batatas (L.) lam, treated with fishpond sediment and water in Petir Village, Dramaga, Bogor, Indonesia. J. ISSAAS, 22(2):1-9.
Roy, S. and Md.A. Kashem. 2014. Effects of organic manures in changes of some soil properties at different incubation periods. Open Journal of Soil Science, 4(1):81-86. http://dx.doi.org/10.4236/ojss.2014.43011
Santari P.T., A. Hartono dan Suwarno. 2018. Pengaruh pemberian pelet dari lumpur kolam ikan dan kotoran kambing pada pertumbuhan dan produksi jagung manis. Jurnal Ilmu Pertanian, 24(1):41-47.
Soepratohardjo, M., H. Subagjo, Suhardjo, Ismangun, D.S. Marsoedi, A. Hidayat, Y. Dai, A. Adi, M. Supartini, Mursidi and J.S. Adiningsih. 1983. Terms of reference survey of soil capability. Center for Soil Research, (In Indonesian). 52 p. Bogor
Tisdale, S.L., W.L. Nelson and J.D. Beaton. 1985. Soil Fertility and Fertilizers, 4th ed. Macmillan Publishing, New York. Pp189-569.
Tungka, W.A., H. Haeruddin dan C. Ain 2016. Konsentrasi nitrat dan ortofosfat di muara sungai banjir kanal barat dan kaitannya dengan kelimpahan fitoplankton Harmful Alga Blooms (HABs). Saintek Perikanan, 12(1):40-46.
Widowati, R.L, D.S. Neve, Sukristiyonubowo, D. Setyorini, A. Kasno, I.A. Sipahutar and Sukritiyohastomo. 2011. Nitrogen balances and nitrogen use efficiency of intensive vegetable rotations in south east asian tropical andisols. Nutr Cycl Agroecosyst., 91:131-143.
Department of Soil Science and Land Resources Departemen Ilmu Tanah dan Sumberdaya Lahan, Faculty of Agriculture Fakultas Pertanian, IPB University