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The interactions of ecological conditions, genotypes and agrotechnical elements determine the yield quantity, quality and stability in cereal (wheat, maize) production. The applied input- level can modify the adaptive capacity of crop models to ecological conditions. The effects of agrotechnical elements (crop rotation, fertilization, irrigation, crop protection, plant density) were studied in the long-term experiment on chernozem soil. Our scientific results proved that the high yields and good yield-stability were obtained in the input-intensive crop models, so these models had better adaptive capacity, high yield and resilience. Maize had lower ecological adaptive ability than winter wheat. The optimalization of agrotechnical elements reduces the harmful climatic effects so we can increase the yield and yield stability of cereals agro-ecosystems. The yields of wheat varied between 2 and 7 t ha−1 in extensive and 8 and 10 t ha-1 in intensive crop models and the yields of maize ranged between 2 and 11 t ha−1 and 10 and 15 t ha−1, respectively.

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Pepó, P. , 2010. Adaptive capacity of wheat ( Triticum aestivum L.) and maize ( Zea mays L.) crop models to ecological conditions. Növénytermelés. 59 . Suppl. 325–328. Pepó P

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components . Agron. J. 95 : 4 – 9 . 17. Ross , G. J. S. : 1981 . The use of non-linear regression methods in crop modelling . [In: Rose, D. A. – Charles-Edwards, D. A. (eds.) Mathematics

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). Adaptive capacity of wheat ( Triticum aestivum L.) and maize ( Zea mays L.) crop models to ecological conditions . Növénytermelés . 59 . (Suppl.) 325 – 328 . Sváb

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Water Use . Journal of Experimental Botany 58 : 147 – 159 . [14] García-Vila M , Fereres E . 2012 . Combining the simulation crop model

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. 2003. Potential Impact of Climate Change on World Food Supply. Data sets from a major crop modeling study. Socioeconomic Data and Applications Center, Columbia University, New York, 28 pp. Iglesias A

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climate change on world food supply. Data sets from a major crop modeling study. Socioeconomic Data and Applications Center. Columbia University, New York, 28 pp. Iglesias A

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. , Pásztor , L. , Németh , T. ( 2014 ) Coupling the 4M crop model with national geo-databases for assessing the effects of climate change on agro-ecological characteristics of Hungary . International Journal of Digital Earth , 7 ( 5 ), 391 – 410

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: Past, present and future. Research Fund of the Centre for Regional Studies. Pécs, 160 pp. Rosenzweig, C., Iglesias, A. 2003. Potential Impact of Climate Change on World Food Supply. Data sets from a major crop

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(Zea mays L.) crop models to ecological conditions . Növénytermelés , 59 . Suppl ., 325 - 328 . PN EN ISO ( 2010 ): Wheat, rye and their flours, durum wheat and durum wheat semolina - Determination of the falling number according to Hagberg

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