Decision support system for agro-technology transfer
(DSSAT), OIL CROP-SUN Model was used to stimulate the phenology, growth, yield
of different two sunflower hybrids. i.e. Hysun-33 and S-78 by applying different nitrogen levels. The effect of nitrogen
(N) on growth and yield components of different sunflower (Helianthus annuus L.) hybrids were evaluated under agro-climatic conditions of Sargodha,
Pakistan during spring 2013. The experiment was laid out in a randomized
complete block design with split plot arrangement having three replications,
keeping cultivars in the main plots and nitrogen levels (0, 45, 90,135 and 180
kg/ha) in sub plots. OIL CROP-SUN Model showed that the model was able to
simulate the growth and yield of sunflower with an average of 10.44 error%
between observed and simulate achene yield (AY). The result of simulation
indicates that nitrogen rate of 180 kg/ha produced highest achene yield in S-78
hybrid as compared to other treatments and Hysun-33 cultivar.
Jahangir, A.A., Mondal, R.K., Nada, K., Afroze, R.S. and Hakim, M.A. (2006) Respose of Nitrogen and Phosphorus Fertilizer and Plant Spacing on Growth and Yield Contributing Character of Sunflower. Bangladesh Journal of Scientific and Industrial Research, 41, 33-40.
Hussein, M.A., El-Hattab, A.H. and Ahmed, A.K. (1980) Effect of Plant Spacing and Nitrogen Levels on Morphological Characters, Seed Yield and Quality in Sunflower (Helianthus annuus L.). Journal of Agronomy and Crop Science, 149, 148-156.
Blamey, F.P.C. and Chapman, J. (1981) Protein, Oil, and Energy Yields of Sunflower as Affected by N and P Fertilization. Agronomy Journal, 73, 583-587.
Zubillaga, M.M., Aristi, J.P. and Lavado, R.S. (2002) Effect of Phosphorus and Nitrogen Fertilization on Sunflower (Helianthus annuus L.) Nitrogen Uptake and Yield. Journal of Agronomy and Crop Science, 188, 267-274.
Fourcaud, T., Stokes, A., Lambers, H. and Korner, C. (2008) Plants Growth Modeling and Application: The Increasing Importance of Plant Architecture in Growth Models. Annals of Botany, 101, 1053-1063. https://doi.org/10.1093/aob/mcn050
Hoogenboom, G., Jones, J.W., Wilkens, P.W., Porter, C.H., Batchelor, W.D., Hunt, L.A., Boote, K.J., Singh, U., Uryasev, O., Boown, W.T., Gijsman, A., du Toit, A., White, J.W. and Tsuji, G.Y. (2004) Decision Support System for Agrotechnology Transfer. Version 4.0, University of Hawaii, Honolulu.
Pereyra-Irujo, G.A. and Aguirrezabal, L.A.N. (2007) Sunflower Yield and Oil Quality Interactions and Variability: Analysis through a Simple Simulation Model. Agricultural and Forest Meteorology, 143, 252-265.
Tyagi, N.K., Sharma, D.K. and Luthra, S.K. (2008) Determination of Evapo-Transpiration and Crop Coefficients of Rice and Sunflower with Lysimeter. Agricultural Water Management, 45, 41-54. https://doi.org/10.1016/S0378-3774(99)00071-2
Diodato, N. and Bellocchi, G. (2007) Modelling Solar Radiation over Complex Terrains Using Monthly Climatological Data. Agricultural and Forest Meteorology, 144, 111-126. https://doi.org/10.1016/j.agrformet.2007.02.001
Villalobos, F.J., Hall, A.J., Ritchie, J.T. and Orgaz, F. (1996) OILCROP-SUN: A Development, Growth, and Yield Model of Sunflower Crop. Agronomy Journal, 88, 403-415. https://doi.org/10.2134/agronj1996.00021962008800030008x
Rinaldi, M., Losavio, N. and Flagella, Z. (2003) Evaluation and Application of OILCROP-SUN Model for Sunflower in Southern Italy. Agricultural Systems, 78, 17-30. https://doi.org/10.1016/S0308-521X(03)00030-1