Summary
Field studies were conducted on Indian Vertisol to determine the fate of15N-labeled fertilizers applied to dryland sorghum in two successive rainy seasons. In the 1981 season, a split-band (SB) urea application of 74 kg N/ha, half amounts placed 5 cm deep and 8 cm from opposite sides of plant rows at 4 and 19 days after emergence, was superior to preemergent applications of either surface-applied (S) or incorporated (I) applications at the same rate; 907 mm of rainfall fell during the sorghum growing period. Percentages of applied N recovered in the soil-plant system after the sorghum harvest were 94%, 74%, and 72%, respectively, for the SB, I, and S application methods. Substantial quantities, 39%, 45%, and 42% of the added N for the SB, I, and S tretments, respectively, remained in the soil after the final harvest. Plant utilization of added urea-N was greater in 1980 when rainfall during the growing season was 212 mm less than in 1981. S or I applications of urea at 74 kg N/ha, with above-ground plant15N recoveries of 48.0% and 48.6%, respectively, were also equally as efficient during 1980. Residual soil N derived from fertilizer was of little value for a sorghum crop in the following rainy season and for a safflower crop in the post-rainy season in a double-cropping system.
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References
Bal D V 1925 The determination of nitrogen in heavy clay soils. J. Agric. Sci. 15, 454–459.
Blokhuis W A 1982 Morphology and genesis of Vertisols. Trans. 12th Intern. Congr. Soil Sci. 3, 23–47.
Brady N C 1974 The nature and properties of solis. Macmillan Pub. Co., New York, 639 p.
Bremner J M 1965 Total Nitrogen.In Methods of Soil Analysis, Part 2. Eds. C A Black et al. 1149–1178, Agronomy 9. Madison, WI, Am. Soc. Agron.
Bremner J M 1965 Inorganic forms of nitrogen.In Methods of Soil Analysis, Part 2. Eds. C A Black et al. pp 1179–1237, Agronomy 9. Madison, WI, Am. Soc. Agron.
Buresh R J, Austin E R and Craswell E T 1982 Analytical methods in15N research. Fert. Res. 3, 37–62.
Craswell E T and Martin A E 1974 Effect of moisture content on denitrification in clay soil. Soil Biol. Biochem. 6, 127–129.
Crawell E T and Martin A E 1975 Isotopic studies of the nitrogen balance in a cracking clay. II. Recovery of nitrate15N added to columns of packed soil and microplots growing wheat in the field. Aust. J. Soil Res. 13, 53–61.
Fenn L B and Kissel D E 1974 Ammonia volatilization from surface applications of ammonium compounds on calcareous soils: II. Effects of temperature and rate of ammonium nitrogen application. Soil Sci. Soc. Am. Proc. 38, 606–610.
Finck A and Venkateswarlu J 1982 Chemical properties and fertility management of Vertisols. Trans. 12th Intern. Congr. Soil Sci. II, 61–79.
Jansson S L 1971 Use of15N in studies of soil nitrogen.In Soil Biochemistry, Vol. 2, Eds. A D McLaren and J Skujins pp. 129–166. Marcel Dekker, New York.
Kanwar J S, Kampen J and Virmani S M 1982 Management of Vertisols for maximum crop production-ICRISAT experience. Trans. 12th Intern. Congr. Soil Sci.II, 94–118.
Kissel D E, Ritchie J T and Burnett E 1974 Nitrate and chloride leaching in a swelling clay soil. J. Environ. Qual. 3, 401–404.
Kissel D E, Smith S J and Dillow D W 1976 Disposition of fertilizer nitrate applied to a swelling clay in the field. J. Environ. Qual. 5, 66–71.
Kissel D E, Smith S J, Hargrove W L and Dillow D W 1977 Immobilization of fertilizer nitrate applied to a swelling clay soil in the field. Soil Sci. Soc. Am. J. 41, 346–349.
Middleboe V, Nielsen D R and Rennie D A 1976 Tracer manual on crops and soils. IAEA (Vienna) Tech. Report Series 171.
Moraghan J T, Rego T J and Sahrawat K L 1983 Water pretreatment of soil and the determination of total nitrogen. Soil Sci. Soc. Am. J. 47, 213–217.
Murty R S, Bhattacharjee J C, Landey R J and Pofali 1982 Distribution, characteristics and classification of Vertisols. Trans. 12th Intern. Congr. Soil Sci. II, 3–22.
Myers R J K 1978 Nitrogen and P nutrition of dryland grain sorghum at Katherine, Northern Territory. 3 Effect of nitrogen carrier, time and placement. Aust. J. Exp. Agric. Animal Husb. 18, 834–843.
Myers R J K 1980 The root system of a grain sorghum crop. Field Crops. Res. 3, 53–64.
Oza A M and Subbiah B V 1980 Utilization of fertilizer nitrogen and its distribution in the soil profile under a multiple cropping system. J. Indian Soc. Soil Sci. 28, 85–90.
Pal U R, Upadhyay U C, Singh S P and Umrani N K 1982 Mineral nutrition and fertilizer response of grain sorghum in India — a review over the last 25 years. Fert. Res. 3, 141–149.
Prasad R and Subbian B V 1982 Nitrogen — the key plant nutrient in Indian agriculture. Fert. News (India) 27 (2), 27–42.
Tomar J S and Soper R J 1981 Fate of tagged urea N in the field with different methods of N and organic matter placement. Agron. J. 73, 991–995.
Sachdev M S, Oza A M and Subbiah B V 1977 Possibilities of improving the efficiency of nitrogenous fertilizers. Proc. Symp. Soil Organic Matter Studies, Braunschweig, West Germany, 1, 371–382, IAEA, Vienna.
Smith S J, Dillow D W and Young L B 1982 Disposition of fertilizer nitrate applied to sorghum-sudangrass in the Southern Plains. J. Environ. Qual. 11, 341–344.
Venkateswarlu J 1982 Dryland agriculture-problems and prospects.In A decade of dryland agricultural research in India 1971–80. ICAR-All Indian Co-ordinated Research Project for Dryland Agriculture, Hyderabad, pp 7–14.
Vetselaar R, Passioura J B and Singh B R 1972 Consequences of banding nitrogen fertilizers in soil. I. Effects of nitrification. Plant and Soil 36, 159–175.
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Moraghan, J.T., Rego, T.J., Buresh, R.J. et al. Labeled nitrogen fertilizer research with urea in the semi-arid tropics. Plant Soil 80, 21–33 (1984). https://doi.org/10.1007/BF02232936
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DOI: https://doi.org/10.1007/BF02232936