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Original Articles

Effect of row spacing, growth stage, and nitrogen rate on spectral irradiance in winter wheat

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Pages 103-122 | Published online: 21 Nov 2008

References

  • Blackmer , T.M. , Schepers , J.S. and Varvel , G.E. 1994 . Light reflectance compared with other nitrogen stress measurements in corn leaves. . Agron. J. , 86 : 934 – 938 .
  • Blaekmer , T.M. , Sehepers , J.S. , Varvel , G.E. and Walter‐Shea , E. A. 1996 . Nitrogen deficiency detection using reflected shortwave radiation from irrigated corn canopies . Agron. J , 88 : 1 – 5 .
  • 1990 . Carlo‐Erba , Nitrogen Analyzer 1500 Series 2 Milan, , Italy
  • Heilman , J.L. and Kress , M.R. 1987 . Effeet of vegetation on spectral irradiance at the soil surface . Agron. J. , 79 : 765 – 768 .
  • Huete , A.R. , Jackson , R.D. and Post , D.F. 1985 . Spectral response of a plant canopy with different soil backgrounds. . Remote Sens, Environ. , 17 : 37 – 53 .
  • Large , E.C. 1954 . Growth stages in cereals . Plant Pathol. , 3 : 128 – 129 .
  • Luklna , E.V. , Stone , M.L. and Raun , W.R. 1998 . Estimating vegetation coverage in wheat using digital images. . J. Plant Nutr. , 22 (2) : 341 – 350 .
  • Raun , W.R. , Solie , J.B. , Johnson , G. V. , Stone , M.L. , Whitney , R.W. , Lees , H.L. , Sembiring , H. and Phillips , S.B. 1998a . Microvariability in soil test, plant nutrient, and yield parameters in bermudagrass. . Soil Sci. Soc. Am. J. , 62 : 683 – 690 .
  • Raun , W.R. , Johnson , G.V. , Sembiring , H. , Lukina , E.V. , LaRuffa , J.M. , Thomason , W.E. , Phillips , S.B. , Solie , J.B. , Stone , M.L. and Whitney , R.W. 1998b . Indirect measures of plant nutrients. . Commun. Soil Sci. Plant Anal. , 27 (11–14) : 1571 – 1581 .
  • SAS Institute . 1988 . SAS/STAT user's guide. , Version 6.03 ed. , Cary, NC : Statistical Analysis System Institute .
  • Sawyer , J.E. 1994 . Concepts of variable rate technology with considerations for fertilizer application. . J. Prod. Agric. , 7 : 195 – 201 .
  • Schepers , J.S. , Francis , D.D. and Thompson , M.T. 1989 . Simultaneous determination of total C, total N, and 15N on soil and plant material. . Commun. Soil Sci. Plant Anal. , 20 (9&10) : 949 – 959 .
  • Solie , J.B. , Raun , W.R. , Whitney , R.W. , Stone , M.L. and Ringer , J.D. 1996 . Optical sensor based field element size and sensing strategy for nitrogen application. . Trans. ASAE , 39 (6) : 1983 – 1992 .
  • Stanhill , G. , Kafkafl , U. , Fuchs , M. and Kagan , Y. 1972 . The effect of fertilizer application on solar reflectance from a wheat crop. . Israel J. Agric. Res. , 22 (2) : 109 – 118 .
  • Stone , M.L. , Solie , J.B. , Raun , W.R. , Whitney , R.W. , Taylor , S.L. and Ringer , J.D. 1996 . Use of spectral radiance for correcting in‐season fertilizer nitrogen deficiencies in winter wheat. . Trans. ASAE. , 39 (5) : 1623 – 1631 .
  • Thomas , J.R. and Oerther , G.F. 1972 . Estimating nitrogen content of sweet pepper leaves by reflectance measurements. . Agron. J. , 64 : 11 – 13 .

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