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001-es BibID:	BIBFORM063712
Első szerző:	Ragán Péter (környzetgazdálkodási agrármérnök)
Cím:	Evaluation of the impact of crop year and fertilisation on maize yield using a novel method / Péter Ragán, János Nagy, Adrienn Széles
Dátum:	2016
ISSN:	0546-8191
Megjegyzések:	As a result of climate change, spatial and temporal distribution of precipitation in Hungary changes, therefore appropriate nutrient supply becomes more and more important for both environmental protection and economic reasons. Monitoring of efficiency of fertiliser use requires field trials, where fertiliser utilization and specific effects of a given year are observable. A novel method was used for the investigation of the above.The measurements were carried out at the Látókép Experimental Site of the University of Debrecen, in moderately warm, dry production zone, in years 2012-2014, on mid-heavy calcareous chernozem soil. The trial had two repetitions, and a split-strip-plot distribution.Statistical evaluation and the interaction plot were performed in an R environment, with the RStudio graphical user interface. For the analysis of the fertilizer and year effect a repeated measurement model was created; comparison of multiple mean values was carried out by means of the Student-Newman-Keuls test.Fertilization, and the specific annual factors had a significant (p <0.001) effect on yield; however the interaction of the fertilizer and the year had no significant effect on the yield. We achieved the highest statistically verified yield, 13.3 tha-1 with the 120 kg Nha-1 base + 30kg Nha-1 additional fertilizer treatment. Each of the three examined years were significantly (p <0.001) different from each other, we measured the highest yield 13.16 tha-1 in the year 2012.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok konferenciacikk maize fertilisation environmental factors repeated measurement model
Megjelenés:	Növénytermelés 65 : Suppl. (2016), p. 31-34. -
További szerzők:	Nagy János (1951-) (agrármérnök, mérnök-tanár) Széles Adrienn (1980-) (okleveles agrármérnök)
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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