Abstract
Response of lowland rice to sources and methods of nitrogen fertilizer application were summarized for more than 100 experiments. In about 2/3 of the experiments, the yield increase per kg of fertilizer N was judged to be relatively poor with ‘best split’ applications of urea. Based on frequency distribution, sulfur coated urea and urea briquets or urea supergranules deep placed more often produced satisfactory yield increases than ‘best split’ urea, but even with these sources/methods the yield increases were judged to be relatively poor in about 1/2 of the experiments. There is an enormous potential to increase rice production with no further increases in inputs of fertilizer N if we could learn to match the best method/source of fertilizer with the soil-crop management complex.
About 60% of the yields with no fertilizer N were in the range of 2 to 4 t/ha. Based on the average yield response to urea, this is equivalent to about 100 kg of urea N. It would appear worthwhile to study ways to improve utilization of ‘soil nitrogen’ since it is already in place on the land and apparently in fairly abundant amounts in many soils.
About 50 experiments with15N fertilizers were summarized. In almost all cases, the uptake of tagged fertilizer was less than the net increase in N in the above ground matter. In about 2/3 of the experiments, the addition of fertilizer N increased soil N uptake more than 20% and in 1/3 of the experiments the uptake of soil N was increased more than 40%. These results lead to much uncertainty about practical interpretation and use of15N data.
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References
Broadbent FE and Mikkelsen PS (1968) Influence of placement on uptake of tagged nitrogen by rice. Agron J 60:674–677
Broadbent FE (1979) Mineralization of organic nitrogen in paddy soils.In Nitrogen and Rice. International Rice Research Institute. Manila, Philippines, pp 105–118
Cao ZH, De Datta SK and Fillery IRP (1984) Nitrogen-15 balance and residual effects of urea-N in wetland rice fields as affected by deep placement techniques. Soil Sci Soc Am J 48:203–208
Craswell ET and Vlek PLG (1979) Fate of fertilizer nitrogen applied to wetland rice.In Nitrogen and Rice. International Rice Research Institute. Los Baños, Phillippines
De Datta SK (1981) Principles and Practices of Rice Production. John Wiley and Sons, NY pp 89–91
De Datta SK, Stangel PJ and Craswell ET (1981) Evaluation of nitrogen fertility and increasing fertilizer efficiency in wetland rice.In Proceedings of Symposium on Paddy Soil. Springer-Verlag, New York
Howeler RH and Bouldin DR (1971) The diffusion and consumption of oxygen in submerged soil. Soil Sci Soc Amer Proc 35:202–208
IAEA (1978) Isotope studies on rice fertilization. International Atomic Energy Agency. Vienna Tech Rep Ser No. 181
International Rice Research Institute (1978a) Final report on the first international trial on nitrogen fertilizer efficiency in rice (1975–1976). International Network on Fertilizer Efficiency in Rice (INFER). Los Baños, Laguna, Philippines
International Rice Research Institute (1978b) Preliminary report on the second international trial on nitrogen fertilizer efficiency in rice (1977). International Network on Fertilizer Efficiency in Rice (INFER). Los Baños, Laguna, Philippines
International Rice Research Institute (1980a) Preliminary report on the third international trial on nitrogen fertility efficiency in rice (1978–1979) International Network on Soil Fertility and Fertilizer Evaluation for Rice (INSFFER). Los Baños, Laguna, Philippines
International Rice Research Institute (1980b) Report on the international longterm fertility trial in rice. International Network on Soil Fertility and Fertilizer Evaluation for Rice (INSFFER). Los Baños, Laguna, Philippines
Keulen H Van (1977) Nitrogen requirements of rice with special reference to Java. Cont. Centr. Res. Inst. Boger, Indonesia No. 30
Koyama T (1971) Soil-plant nutrition studies on tropical rice. III. The effect of soil fertility status of nitrogen and its liberation upon the nitrogen utilization by rice plants on Bangkhen paddy soil. Soil Sci and Plant Nutr 17:210–220
Koyama T and App A (1979) Nitrogen balance in flooded rice soils.In Nitrogen and Rice. International Rice Research Institute. Los Baños, Philippines
Koyama T and Niamscrichand N (1973) Soil-plant nutrition studies on tropical rice. VI. The effect of different levels of nitrogenous fertilizer application on plant growth grain and nitrogen utilization by rice plants. Soil Sci. Plant Nutr. 19:265–274
Mikkelsen DS and De Datta SK (1979) Ammonium volatilization from wetland rice soils.In Nitrogen and Rice. International Rice Research Institute. Manila, Philippines, pp 135–156
Moorman FR and Van Breeman N (1978) Rice: Soil, water, and land. International Rice Research Institute. Manila, Philippines, p 40:91–92.
Patnaik S and Broadbent FE (1967) Utilization of tracer nitrogen by rice in relation to time of application. Agron J 59:287
Patrick WH and Delaune RD (1972) Characterization of the oxidized and reduced zones in flooded soil. Soil Sci Soc Amer Proc 36:573–576
Patrick WH and Reddy KR (1976) Nitrification-denitrification reactions in flooded soils and water bottoms: Dependence on oxygen supply and ammonium diffusion. J Environ Qual 5:469–472
Patrick WH and Reddy CN (1978) Chemical changes in rice soils.In Soils and Rice. International Rice Research Institute. Manila, Philippines, pp 361–398
Prasad R and De Datta SK (1979) Increasing fertilizer nitrogen efficiency in wetland rice.In Nitrogen and Rice. International Rice Research Institute, pp 465–484
Ponnamperuma FN (1978) Electrochemical changes in submerged soils.In Soils and Rice. International Rice Research Institute. Manila, Philippines, pp 421–441
Ponnamperuma FN (1982) Some aspects of the physical chemistry of paddy soils.In Proceedings of Symposium on Paddy Soils. Science Press Beijing pp 59–94
Phuc N, Tanabe K, and Kuroda M (1976) Mathematical analysis on the miscible displacement and diffusion of dissolved oxygen in the submerged soils. J Fac Agric Kyushu Univ 20:61–73
Savant NK and De Datta SK (1982) Nitrogen transformation in wetland rice soils. Adv Agron 35:241–302
Watanabe I, Craswell ET and App AA (1981) Nitrogen cycling in wetland rice soils in East and Southeast Asia.In Wetselaer R et al. (eds) Nitrogen Cycling in Southeast Asian ecosystems. Australian Academy of Science. Canberra
Yoshida T and Padre BC (1977) Transformation of soil and fertilizer nitrogen in paddy soil and their availability to rice plants. Plant and Soil 47:113–123
Yoshida S, Forno DA, Cock JH and Gomez KA (1976) Laboratory manual for physiological studies of rice. 3rd ed. International Rice Research Institute. Los Baños, Philippines
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Bouldin, D. 1. The chemistry and biology of flooded soils in relation to the nitrogen economy in rice fields. Fertilizer Research 9, 1–14 (1986). https://doi.org/10.1007/BF01048693
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DOI: https://doi.org/10.1007/BF01048693