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001-es BibID:	BIBFORM022593
Első szerző:	Pepó Péter (agrármérnök)
Cím:	New issues of fertilization by precision agriculture in wheat (Triticum aestivum L.) / Pepó Péter
Dátum:	2006
Megjegyzések:	Hungary is located in temperate climatic zone of Central-Europe. Agriculture has traditionally important role in Hungarian economy (agriculture has 5% and total agribusiness takes 14% in GDP, respectively). Arable land is about 50% of total territory wich is very high proportion. Climatic and soil conditions generally are favourable for arable field crops especially for small grain cereals and maize (they have about 67% of arable land). In Hungarian crop production the farmers mainly use traditional crop management (low-input and mid-tech technologies) but the area of sustainable, integrated crop technology increases nowdays. Precision agriculture is used on limited area. Issues of our normal and long-term, small and big plots experiments were carried out to study the effects of agroecological conditions, genotypes and crop management elements on the yield, yield-stability and quality of winter wheat, to study their interactions on the fertilization of precision agriculture in wheat.According to our results the genotypes of wheat could be classified into 4 groups, regarding nutrient utilization and fertilizer response: type A-modern genotype; type B-extensive genotype; type C-intensive genotype; type D-out-of-date genotype.In our long-term experiment the optimum N-doses (+PK) varied depending on the cropyear (water supply in vegetation period and winter period too) and genotypes (variety-specific fertilization). The optimum N-doses ranged 60-120 kgha-1 (+PK) depending on years and variety. Over the optimum N-dose some NO3-N residues remained in the soil which accumulated year by year.In our long-term fertilizer experiment we used the analyses of yield stability of winter wheat varieties. The results of our research proved that the method, applied can be efficiently used to analyse the environmental responses, the behaviour under varying environmental conditions of different varieties. Varieties can adapt themselves differently to favourable and unfavourable environmental conditions. In the average of years and varieties fertilization hughly increased the wet gluten content (in the control treatment 27,60 %, in the N300/150+PK fertilizer treatment 35,97 %). Fertilizer application also had favourable effects on farinograph values. These effects, however, were rather moderate (in the control treatment 56,2, in N300/150+PK fertilizer treatment 61,4). We could increase the stability of the quality by using of appropriate fertilizer doses. The correlation between fertilization and wet gluten content was medium (0.343xx-0,694xx) and between fertilization and farinograph values was weak (0.030-0,419xx).Application of precision fertilization could increase the agronomic efficiency of crop management in wheat production (better yield, baking quality, yield-stability) and could decrease the harmful environmental effects.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok előadáskivonat precision agriculture wheat fertilization yield baking quality
Megjelenés:	Eight International Conference on Precision Agriculture (8)(2006)(Minneapolis-Minnesota, USA). - Eight International Conference on Precision Agriculture / Ed. D.J. Mulla. - p. 106
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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