Yield and protein response to fertilizer nitrogen in different parts of a cereal field: potential of site-specific fertilization
作者： Sofia Delin , Börje Lindén , Kerstin Berglund
DOI: 10.1016/J.EJA.2004.05.001
关键词:
摘要: Crop response to fertilizer nitrogen (N) may vary within a field due variations in soil N and potential yield. To study this, 3-year investigation was started 1998 on 15 ha arable with large texture variability south-west Sweden. Winter wheat grown 2000 spring barley 1999. Using annual trials seven application levels at five sites, curves for yield crude protein (CP) were created economic optimum fertilization rates calculated. Plant-available (Np), moisture, frequency of weeds diseases, accumulation the crop residual mineral measured each site. Differences small between obviously sufficient moisture. Observed differences could instead be explained by Np, local infections fungal diseases or probable losses excess The had no clear effect CP 1999, probably unfavourable weather, bad timing low efficiency. In conclusion, efficiency but not always can improved saved site-specific fertilization, practice uncertainty predicting is an obstacle.
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sci-hub.se 参考文章(13)
J. Wood, The mathematical expression of crop response to inputs. Physiological aspects of crop productivity. Proceedings of the 15th Colloquium of the International Potash Institute. pp. 263- 271 ,(1980)
M. J. Gooding, M. Salahi, J. V. Stafford, R. H. Ellis, Spatial variation in the response of wheat grain yield and quality to late nitrogen. Precision agriculture '99, Part 1 and Part 2. Papers presented at the 2nd European Conference on Precision Agriculture, Odense, Denmark, 11-15 July 1999. pp. 531- 538 ,(1999)
N. Bloembergen, The Experimental Method Springer Netherlands. pp. 52- 82 ,(1948) , 10.1007/978-94-017-6073-7_3
Michael Gooding, W. P. Davies, Wheat production and utilization: systems, quality and the environment Wheat production and utilization: systems, quality and the environment.. ,(1997)
Frank W. Sosulski, Gilbert I. Imafidon, Amino Acid Composition and Nitrogen-to-Protein Conversion Factors for Animal and Plant Foods Journal of Agricultural and Food Chemistry. ,vol. 38, pp. 1351- 1356 ,(1990) , 10.1021/JF00096A011
Eva Johansson, Gunnar Svensson, Variation in bread-making quality: effects of weather parameters on protein concentration and quality in some Swedish wheat cultivars grown during the period 1975-1996 Journal of the Science of Food and Agriculture. ,vol. 78, pp. 109- 118 ,(1998) , 10.1002/(SICI)1097-0010(199809)78:1<109::AID-JSFA92>3.0.CO;2-0
S. Delin, B. Lindén, Relations Between Net Nitrogen Mineralization and Soil Characteristics Within an Arable Field Acta Agriculturae Scandinavica Section B-soil and Plant Science. ,vol. 52, pp. 78- 85 ,(2002) , 10.1080/090647102321089819
G.P Smith, M.J Gooding, Models of wheat grain quality considering climate, cultivar and nitrogen effects Agricultural and Forest Meteorology. ,vol. 94, pp. 159- 170 ,(1999) , 10.1016/S0168-1923(99)00020-9
A.-C. Hansson, R. Pettersson, K. Paustian, Shoot and Root Production and Nitrogen Uptake in Barley, with and without Nitrogen Fertilization Journal of Agronomy and Crop Science. ,vol. 158, pp. 163- 171 ,(1987) , 10.1111/J.1439-037X.1987.TB00258.X
Leif Klemedtsson, Bo H. Svensson, Thomas Rosswall, Dinitrogen and nitrous oxide produced by denitrification and nitrification in soil with and without barley plants Plant and Soil. ,vol. 99, pp. 303- 319 ,(1987) , 10.1007/BF02370877