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001-es BibID:	BIBFORM090103
Első szerző:	Széles Adrienn (okleveles agrármérnök)
Cím:	Evaluation of Changes Caused by Genotypes and Weather on the Protein and Oil Content of Maize Grains in the Continental Climate of Centreal European Hungary / Széles Adrienn, Fejér Péter, Harsányi Endre, Huzsvai László
Dátum:	2019
ISSN:	2415-0142
Megjegyzések:	Present study is focused on the quality parameters of maize hybrids used as animal feed and on the evaluation of the effect of sowing dates and weather factors. The an alyses were carried out in Hungary, near Debrecen ( 47 o 33'N, 21 o 26'E , 111 m), on calcareous chernozem soil between 2011 - 2013. The experiment took place with the involvement of three sowing dates (SD) and three hybrids (FAO 290, FAO 350 and FAO 420) with nat ural precipitation supply. The three - year result showed that the cumulative Growing Degree Day (GDD) value was high during the growing season of SD1 and SD2 sowings, but the low temperature recorded at the early stages of plant development reduces the prot ein and oil content of the maize grain. Thus, with the postponement of sowing (SD3), where daily temperatures are higher, but the cumulative GDD value of the growing season is lower, the protein and oil content of the maize grain increased by 12.5 - 12.8% (P <0.05; P<0.05). Overall, in the average of the hybrids and SD, protein content was the highest (10.5 g (100 g dm.) - 1 ; P<0.05) and oil content was the lowest (4.6 g (100 g dm.) - 1 ; P<0.05) in the year (2012) with the highest GDD (1543 o C ) value and lowest pre cipitation (277mm) in the lowest breeding season (2012) were the highest in the average of hybrids and SD (10.5 g (100 g dm.) - 1 ; P< 0.05), while the oil content is the lowest (4.6 g (100 g(100 g dm.) - 1 ; P<0.05). The highest protein and oil content was recor ded in the case of the very early (FAO 290) hybrid (SD3, 2013). (14) (PDF) Evaluation of Changes Caused by Genotypes and Weather on the Protein and Oil Content of Maize Grains in the Continental Climate of Centreal European Hungary. Available from: https://www.researchgate.net/publication/333843439_Evaluation_of_Changes_Caused_by_Genotypes_and_Weather_on_the_Protein_and_Oil_Content_of_Maize_Grains_in_the_Continental_Climate_of_Centreal_European_Hungary [accessed Jun 18 2019].
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Journal of Agriculture Food and Development. - 5 : 1 (2019), p. 22-32. -
További szerzők:	Fejér Péter (1981-) (agrármérnök) Harsányi Endre (1976-) (agrármérnök) Huzsvai László (1961-) (talajerőgazdálkodási szakmérnök, agrármérnök)
Pályázati támogatás:	GINOP-2.2.1-15-2016-00001 Egyéb EFOP-3.6.3-VEKOP-16-2017-00008 EFOP 20428-3/2018/FEKUTSTRAT Egyéb
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001-es BibID:	BIBFORM079270
Első szerző:	Széles Adrienn (okleveles agrármérnök)
Cím:	The Effect of Fertilisation and Weather Extremities Caused by Climate Change on Maize (Zea mays L.) Yield in Hungary / Széles Adrienn, Harsányi Endre, Kith Károly, Nagy János
Dátum:	2018
ISSN:	2415-0142
Megjegyzések:	The aim of this study was to analyse the effect of weather and nutrient replenishment on maize productivity. Examinations were performed in a moderately warm and dry production region in Hungary (47o 33' N, 21o 26' E, 111 m asl) on calcareous chernozem soil in 2016 and 2017. Non-fertilised (control) treatment and 10 different NPK fertiliser combinations were used under natural precipitation conditions. The 2016 growing season, which ended with a significant surplus of rainfall (+110 mm), provided the availability of nutrients. Due to the difference between the low amount of rainfall (349 mm) and high evapotranspiration (674 mm) during the growing season, yield was 37% higher in 2017. The impact of weather on yield was more significant in the case of the treatment combination of increasing N + constant proportion PK (4220 kg ha-1) in comparison with the increasing N + same proportion PK treatment combination (2165 kg ha-1). The difference between the two treatment combinations was significant at the level of 0.1%. The optimum yield level can be reached with the lower dose NPK treatment of 120:92:108 kg NPK ha-1 in the case of favourable weather. However, under less favourable weather conditions, the higher dose NPK treatment of 180:184:216 kg NPK ha-1 should be used. Fertilisation significantly improved WUE, considering the amount of precipitation in the growing season. In 2016, water use efficiency increased from 19 kg mm-1 in the non-fertilised treatment to 29 kg mm-1 in the 120:92:108 kg NPK ha-1 treatment. In 2017, yield per 1 mm precipitation was 15 kg mm-1 in the non-fertilised treatment and it significantly increased (32 kg mm-1) in the optimum treatment of 180:184:216 kg NPK ha-1.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban Environmental factors Nutrient replenishment Water use efficiency
Megjelenés:	Journal of Agriculture Food and Development. - 4 : 1 (2018), p. 1-9. -
További szerzők:	Harsányi Endre (1976-) (agrármérnök) Kith Károly (1986-) (környezetkutató, ökológus) Nagy János (1951-) (agrármérnök, mérnök-tanár)
Pályázati támogatás:	GINOP-2.2.1-15-2016-00001 GINOP EFOP-3.6.3-VEKOP-16-2017-00008 EFOP
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