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The dynamics of nitrogen uptake and its remobilization during the growth of sugar beet

Published online by Cambridge University Press:  27 March 2009

M. J. Armstrong
Affiliation:
Broom's Barn Experimental Station, Higham, Bury St Edmunds, Suffolk, IP28 6NP1
G. F. J. Milford
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ
T. O. Pocock
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ
P. J. Last
Affiliation:
Broom's Barn Experimental Station, Higham, Bury St Edmunds, Suffolk, IP28 6NP1
W. Day
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ

Summary

The uptake and distribution of N were examined in a series of sugar-beet crops grown on different sites (Broom's Barn, Suffolk and Trefloyne, Dyfed) or with 0 (No) or 125 kg N/ha (N125) between 1978 and 1982. Depletion of soil N was followed in some years. Initial rates of N uptake in spring for the N125 crops at Broom's Barn ranged from 2·3 kg/ha per day in 1980 to 5·8 kg/ha per day in 1981 and 1982 and at Trefloyne from 4·7 kg/ha per day in 1980 to 5·4 kg/ha per day in 1979. The initial phase of N uptake in No crops was shorter and at Broom's Barn the rate ranged from 1·6 kg/ha per day in 1979 to 5·1 kg/ha per day in 1982. Crops with high initial uptake rates had somewhat greater shoot N concentrations. There was no relation between the initial uptake rates or the total N uptake and the amounts of mineral N in the soil at the start of rapid growth in June. Simulations of early crop growth coupled with analysis of changes in the total N in the crop-plus-soil system showed that the rate of N uptake by the N125 crops was regulated by crop demand for N as determined by growth rate in 4 of the years and by soil supply in the 5th. The analysis of the crop-plus-soil N also showed that substantial losses of N occurred when the crop was actively growing in June and July in 1979 and 1980 due to excessive rainfall following early irrigations. There were serious consequences for N uptake, N concentration in developing leaves and the overall growth of these crops.

N uptake rates in autumn ranged from no net uptake in 1979 and 1980 to 0·6 kg/ha per day in the other 3 years at Broom's Barn and 1·0 kg/ha per day at Trefloyne. Large amounts of N were remobilized from the shoot to sustain the growth of the storage root in years when uptakes from the soil in autumn were small. Remobilized N represented 80, 50 and 30% of the net increase in storage-root N between the end of August and harvest in 1979, 1980 and 1981 respectively. The amounts remobilized from shoots ranged from 8 to 18 kg N/ha and may therefore also represent a source of amino-N impurities in harvested beet. An analysis of N in individual leaves showed that remobilized N probably originated from leaf protein and that remobilization started at full expansion rather than at the onset of leaf senescence, which was often many weeks later.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1986

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References

REFERENCES

Anon. (1985). Nutrients. In Sugar Beet – A Grower's Guide (ed. Bray, W. E. and Thompson, K. J.), pp. 1017. Ministry of Agriculture, Fisheries and Food, Sugar Beet Research and Education Committee.Google Scholar
Armstrong, M. J., Milford, G. F. J., Biscoe, P. V. & Last, P. J. (1983). Influences of nitrogen on physiological aspects of sugar-beet productivity. International Institute for Sugar Beet Research, Symposium ‘Nitrogen and Sugar Beet’, Brussels, pp. 5361.Google Scholar
Biscoe, P. V., Draycott, A. P. & Jaggard, K. W. (1980). Weather and the growth of sugar beet. British Sugar Beet Review 48 (2), 4749.Google Scholar
Brown, K. F. & Biscoe, P. V. (1985). Fibrous root growth and water use of sugar beet. Journal of Agricultural Science, Cambridge 105, 679691.CrossRefGoogle Scholar
Christmann, J. (1978). Recherches récentes entreprises en France sur la dynamique de l'azote minéral dans le sol. Proceedings of the International Institute for Sugar Beet Research 41st Winter Congress, Brussels, pp. 7378.Google Scholar
Cooke, G. W. (1972). Fertilizing for Maximum Yield, 296 pp. London: Crosby and Lockwood.Google Scholar
Cromwell, B. T. & Rennie, S. D. (1953). The biosynthesis and metabolism of betaines in plants. I. The estimation and distribution of glycine betaine in Beta vulgaris L. and other plants. Biochemical Journal 55, 189192.CrossRefGoogle Scholar
Day, W. (1986). A simple model to describe variation between years in the early growth of sugar beet. Field Crops Research (in the Press).Google Scholar
Draycott, A. P., Last, P. J. & Messem, A. B. (1980). Possible improvements in nitrogen fertilizer application for sugar beet by way of soil analysis. Proceedings of the International Institute of Sugar Beet Research 43rd Winter Congress, Brussels, pp. 319325.Google Scholar
Ellis, R. J. (1979). The most abundant protein in the world. Trends in Biochemical Sciences 4, 241244.CrossRefGoogle Scholar
Granstedt, R. C. & Huffaker, R. C. (1982). Identification of the leaf vacuole as a major nitrate storage pool. Plant Physiology 70, 410413.CrossRefGoogle Scholar
Hill, J. (1980). The remobilization of nutrients from leaves. Journal of Plant Nutrition 2, 407444.CrossRefGoogle Scholar
Jensen, R. G. & Bahr, J. T. (1977). Ribulose 1, 5 biphosphate carboxylase-oxygenase. Annual Review of Plant Physiology 28, 379400.Google Scholar
Kolenbrander, C. J. (1978). The nitrogen cycle and fertilizer requirements. Proceedings of the International Institute for Sugar Beet Research ilst Winter Congress, Brussels, pp. 111.Google Scholar
Last, P. J., Draycott, A. P., Messem, A. B. & Webb, D. J. (1983). Effects of nitrogen fertilizer and irrigation on sugar beet at Broom's Barn 1973–8. Journal of Agricultural Science, Cambridge 101, 185205.Google Scholar
Last, P. J. & Tinker, P. B. H. (1968). Nitrate nitrogen in leaves and petioles of sugar beet in relation to yield of sugar and juice purity. Journal of Agricultural Science, Cambridge 71, 383392.CrossRefGoogle Scholar
Martinoa, E., Heck, U. & Wiemken, A. (1981). Vacuoles as storage compartments for nitrate in barley leaves. Nature 289, 292294.Google Scholar
Milford, G. F. J., Biscoe, P. V., Jaggard, K. W., Scott, R. K. & Draycott, A. P. (1980). Physiological potential for increasing yields of sugar beet. In Opportunities for Increasing Crop Yields (ed. Hurd, R. G., Biscoe, P. V. and Dennis, C.), pp. 7185. London: Pitmans.Google Scholar
Milford, G. F. J., Pocock, T. O. & Riley, J. (1985a). An analysis of leaf growth in sugar beet. II. Leaf appearance in field crops. Annals of Applied Biology 106, 173185.CrossRefGoogle Scholar
Milford, G. F. J., Pocock, T. O., Riley, J. & Messem, A. B. (1985b). An analysis ofleaf growth in sugar beet. III. Leaf expansion in field crops. Annals of Applied Biology 106, 187203.Google Scholar
Milford, G. F. J., Pocock, T. O., Jaggard, K. W., Biscoe, P. V., Armstrong, M. J., Last, P. J. & Goodman, P. J. (1985c). An analysis of leaf growth in sugar beet. IV. The expansion of the leaf canopy in relation to temperature and nitrogen. Annals of Applied Biology 107, 335347.CrossRefGoogle Scholar
Palmer, M. & Casburn, C. (1985). Amino nitrogen analyses – factory experiences. British Sugar Beet Review 53 (1), 7376.Google Scholar
Ross, G. J. S. (1975). Simple non-linear modelling for the general user. Proceedings of the 40th Session of the International Statistical Institute, Warsaw 2, 585593.Google Scholar
Scott, R. K., Jaggard, K. W. & Dunning, R. A. (1985). A review of research at Broom's Barn Experimental Station 1979–84. British Sugar Beet Review 53 (3), 2026.Google Scholar
Shore, M., Dutton, J., Houghton, B. & Bowler, G. (1982). How much is that extra nitrogen fertilizer costing you? British Sugar Beet Review 50 (3), 5456.Google Scholar
Smirnoff, N. & Stewart, G. R. (1985). Nitrate assimilation and translocation by higher plants: comparative physiology and ecological consequences. Physiologia Plantarum 64, 133140.CrossRefGoogle Scholar
Storey, R. & Beevers, L. (1977). Proteolytic activity in relationship to senescence and cotyledonary development in Pisum sativum L. Planta 137, 3744.Google Scholar
Terry, N., Waldron, L. J. & Taylor, S. E. (1983). Environmental influences on leaf expansion. In The Orowth and Functioning of Leaves (ed. Dale, J. E. and Milthorpe, F. L.), pp. 179205. Cambridge: Cambridge University Press.Google Scholar
Thomas, H. (1978). Enzymes of nitrogen mobilization in detached leaves of Lolium temulentum during senescence. Planta 142, 161169.CrossRefGoogle ScholarPubMed
Ulrich, A. (1950). Critical nitrate levels of sugar beets estimated from analysis of petioles and blades, with special reference to yields and sucrose concentrations. Soil Science 69, 291309.Google Scholar
Van Brao, P. F. J., Holmes, M. R. J. & Dilz, K. (1983). Nitrogen supply from fertilizers and manure: its effect on yield and quality of sugar beet. International Institute for Sugar Beet Research, Symposium ‘Nitrogen and Sugar Beet’ Brussels, pp. 189282.Google Scholar
Whitmore, A. P. & Addiscott, T. M. (1985). Computer simulation of changes in soil nitrogen during winter under a crop of winter wheat. In Assessment of Nitrogen Fertilizer Requirements (ed. Neeteson, J. J. and Dilz, K.), pp. 133137. Haren: Institute for Soil Fertility.Google Scholar