Characteristics of Nitrate Sorption of Andisols
Karakteristik Erapan Nitrat pada Andisol
Excessive use of urea and livestock manure by farmers causes the accumulation of nitrate ions on agricultural soils. Knowledge of the ability of soil to absorb nitrate is very important in terms of nitrate movement in the soil profile. The objectives of this study was to reveal the ability of the soils to bind nitrate through sorption and to reveal the soil properties affect the nitrate sorption. Nitrate sorption data were obtained by saturating the soil with nitrate solutions at various concentrations, after previously saturating the soil with chloride ions. Nitrates in the supernatant solution were determined using a UV Spectrophotometer with a wavelength of 210 nm and 275 nm. Then, the data were analyzed using two equations, namely, Langmuir equation and Freundlich equation. The results showed that the nitrate sorptions were best simulated by the Freundlich equation. The value of the constant K Freundlich equation as index of nitrate sorption maximum had a positive correlation with the organic carbon (C), aluminium extracted by ammonium oxalate (Alo), aluminium extracted by Dithonite-citrate-bicarbonate (Ald) and Alo+1/2Feo (Andic property). The results suggested that organic C, Alo, Ald, and Andic property could be considered to control nitrate sorption.
[Balittan] Balai Penelitian Tanah. 2009. Analisis Kimia Tanah, Tanaman, Air dan Pupuk. Balai Penelitian Tanah, Bogor.
Fox, R.L. and E.J. Kamprath. 1970. Phosphate sorption isotherm for evaluating the phosphate requirements of soils. Soil Sci. Soc. Am., 34: 902-907.
Hamdi, W., F. Gamaoun, D.S. Pelster and M. Seffen. 2013. Nitrate sorption in agricultural soil profile. Applied and Environmental Soil Science, 2013: 1-7.
Hartono, A., S. Funakawa and T. Kosaki. 2005. Phosphorus sorption-desorption characteristics of selected acid upland soils in Indonesia, Soil Sci. Plant Nutr. 51(6): 787-799.
Hartono, A. 2007. The effect of calcium silicate on the phosphorous sorption characteristics of Andisol Lembang West Java. J. Tanah Lingk., 10: 14-19.
Hartono, A., S. Anwar dan N. Ruliana, 2019. Karakterisasi Pelepasan Nitrat pada Andisol di Jawa Barat dan Jawa Tengah. Jurnal Ilmu Tanah dan Lingkungan, 21(1): 16-20.
Hartono, A., S. Anwar dan C.M. Lutfi. 2007. Studi Erapan Fosfor, Belerang dan Boron pada Tanah Andisol Sukamantri, Latosol Darmaga dan Grumusol Cihea. Seminar Kongres Nasional IX HITI.
Hartono, A. dan R. Bilhaq. 2014. Effects of silicate application on the release pattern of native inorganic phosphorus from Andisol soil in Lembang, Indonesia using successive resin extraction. J. ISSAAS, 20(2): 43-50.
Maeda, M, Hara H, Ota T. 2008. Deep-soil adsorption of nitrate in a Japanese Andisol in response to different nitrogen sources. Soil Sci. Soc. Amer. J., 72: 702-710.
McKeague, J.A. and J.H. Day. 1966. Dithionite and oxalate extractable Fe and Al as aids in differentiating various classes of soils. Can. J. Soil Sci., 46:13-22.
Mehra, P.O. and M.L. Jackson. 1960. Iron oxide removal from soils and clays by dithionite-citrate system buffered with sodium bicarbonate. Clays Clay Miner., 7: 317-327.
Tan, K.H. 1965. The Andosols in Indonesia. Soil Sci. 99: 375-378.
Tan, K.H. and J. Van Schuylenborg. 1961. On the classification and genesis of soils developed over acid volcanic material under humid tropical conditions. Neth. J. Agr. Sci., 9: 41-54.
Tani, M., T. Okuten, M. Koike, K. Kuramochi and R. Kondo. 2004. Nitrate adsorption in some Andisols developed under different moisture conditions. Soil Sci. Plant Nutr., 50: 439-446.
Van Ranst, E., S.R. Utami, J. Vanderdeelen and J. Shamshuddin. 2004. Surface reactivity of Andisols on volcanic ash along the Sunda arc crossing Java Island, Indonesia. Geoderma. 123: 193-203.
Wada, K. 1959. Reactions of phosphate with allophane and halloysite. Soil Sci., 87: 325-330.
Department of Soil Science and Land Resources Departemen Ilmu Tanah dan Sumberdaya Lahan, Faculty of Agriculture Fakultas Pertanian, IPB University