Field experiments were conducted in the 1984 and 1985 wet seasons to determine the effect of N fertilizer application method on15N balances and yield for upland rice (Oryza sativa L.) on an Udic Arguistoll in the Philippines. The test cultivars were ‘IR43’ and ‘UPLRi-5’ in 1984 and ‘IR43’ in 1985. Unrecovered15N in15N balances for 70 kg applied urea-N ha−1, which represented N fertilizer losses as gases and movement below 0.5 m soil depth, ranged from 11–58% of the applied N. It was lowest (11–13%) for urea split applied at 30 days after seeding (DS) and at panicle initiation (PI), and highest (27–58%) for treatments receiving basal urea in the seed furrows. In all treatments with basal-applied urea, most N losses occurred before 50 DS.
Heavy rainfall in 1985 before rice emergence resulted in large losses of native soil N and fertilizer N by leaching and possibly by denitrification. During the week of seeding, when rainfall was 492 mm, 91 kg nitrate-N ha−1 disappeared from the 0.3-m soil layer in unfertilized plots. Although rainfall following the basal N application was less in 1984 than in 1985, the losses from basal applied urea-N were comparable in the two years. Daily rainfall of 20–25 mm on 3 of the 6 days following basal N application in 1984 may have created a moist soil environment favorable for ammonia volatilization.
In both years, highest grain yield was obtained for urea split-applied at 30 DS and at PI. Delayed rather than basal application of N reduced losses of fertilizer N and minimized uptake of fertilizer N by weeds.
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Arora Y and Juo ASR (1982) Leaching of fertilizer ions in a kaolinitic Ultisol in the high rainfall tropics: leaching of nitrate in field plots under cropping and bare fallow. Soil Sci Soc Am J 46: 1212–1218
Black AS, Sherlock RR and Smith NP (1987) Effect of urea granule size on ammonia volatilization from surface-applied urea. Fert Res 11: 87–96
Bouweester RJB, Vlek PLG and Stumpe JM (1985) Effect of environmental factors on ammonia volatilization from a urea-fertilized soil. Soil Sci Soc Am J 49: 376–381
Buresh RJ, Austin ER and Craswell ET (1982) Analytical methods in15N research. Fert Res 3: 37–62
Chabalier P and Pichot J (1978) Nitrogen fertilizer utilization in a two-year rotation of rice-maize-cotton in central Ivory Coast. In: Buddenhagen IW and Persley GJ (ed) Rice in Africa, pp 303–306. London: Academic Press
Craswell ET and Castillo EG (1979) A convenient device for taking large undisturbed samples of paddy soil. Int Rice Res Newsl 4(4): 22
De Datta SK (1981) Principles and practices of rice production. New York: John Wiley and Sons, Inc
De Datta SK and Buresh RJ (1989) Integrated nitrogen management in irrigated rice. Adv Soil Sci 10: 143–169
Dorich RA and Nelson DW (1984) Evaluation of manual cadmium reduction methods for determination of nitrate in potassium chloride extracts of soil. Soil Sci Soc Am J 48: 72–75
Gigou J, Ganry F and Pichot J (1985) Nitrogen balance in some tropical agroecosystems.In: Kang BT and van der Heide J (ed) Nitrogen management in farming systems in humid and subhumid tropics, pp 247–268. Haren (Gr), Netherlands: Institute for Soil Fertility and International Institute for Tropical Agriculture
Grimme H and Juo ASR (1985) Inorganic nitrogen losses through leaching and denitrification in soils of the humid tropics. In: Kang BT and van der Heide J (eds) Nitrogen management in farming systems in humid and subhumid tropics, pp 57–71. Haren (Gr), Netherlands: Institute for Soil Fertility and International Institute for Tropical Agriculture
Gupta PC and O'Toole JC (1986) Upland rice — a global perspective. Los Baños, Laguna, Philippines: International Rice Research Institute.
Hilsheimer R and Harwig J (1976) Colorimetric determination of nitrite from meat and other foods: an alternative colour reagent for the carcinogenic 1-napthylamine and an improved extraction method. Can Inst Food Sci Technol J 9: 225–227
McInnes KJ, Ferguson RB, Kissel DE and Kanemasu ET (1986) Field measurements of ammonia loss from surface applications of urea solution to bare soil. Agron J 78: 192–196
Patnaik S and Nanda AB (1965) Fertilizer studies with upland broadcast rice. Oryza 2: 129–134
Stumpe JM, Christianson CB and Buresh RJ (1985) An aluminum block digestion procedure for determination of total N in soils containing15N. Commun Soil Sci Plant Anal 16: 1–14
Vlek PLG and Byrnes BH (1986) The efficacy and loss of fertilizer N in lowland rice. Fert Res 9: 131–147
Watanabe I and Padre BCJr (1979) Inorganic nitrogen movement in tropical soils. II. The fate of ammonium fertilizer in well and poorly drained soils in the rainy season. Soil Sci Plant Nutr 25: 627–635
Wild A (1972) Nitrate leaching under bare fallow at a site in Northern Nigeria. J Soil Sci 23: 315–324
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De Datta, S.K., Buresh, R.J., Obcemea, W.N. et al. Nitrogen-15 balances and nitrogen fertilizer use efficiency in upland rice. Fertilizer Research 26, 179–187 (1990). https://doi.org/10.1007/BF01048755
- Nitrogen balance
- N loss
- Oryza sativa L.
- upland rice