AN-fejträgya megosztásának hatäsa oszibüza-fajtäk kaläszänak tömegere es kaläszszämära

Translated title of the contribution: Effect of the split application of N top-dressing on the spike mass and spike number of winter wheat varieties

J. Pethes, E. Kiss, B. Debreczeni

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The effect of the split application of N top-dressing on the spike mass and spike number was examined in winter wheat varieties on a brown forest soil from GödöllS in the experimental nursery of the department of Plant Breeding and Agricultural chemistry of Gödöllö University of Agricultural Sciences. The fertiliser was applied at three rates 120, 160 and 200 kg/ha on four accasions (after emergence and at tillering, shooting and heading) to 17 varieties. Over the average of several years the year effect obscured that of split N fertiliser application. Even within the years it was often difficult to pinpoint characteristic trends due to the different nutrient requirements of the varieties. N top-dressing had a clearer effect on spike mass than on grain yield, but the characteristic trends were similar: 1. In a favourable year (1984) the fertiliser effect was more strongly differentiated, even when averaged over the varieties. 2. In average years (1985, 1987) only the positive effect of N fertiliser could be demonstrated compared to the control, while differences between the treatments could only be observed for a few varieties and not over the average of the varieties. 3. In a dry year (1986), due to the lack of spring rainfall, fertiliser applied at emergence and tillering had the best effect. The spike number (even over the average of 3 or 4 years) was significantly increased by the 80+80+0+0 (emergence, tillering) application, as compared to the 80+40+40+0 treatment. Treatments involving a rate of 80 kg/ha at tillering were also successful. This observation which coincides with farm experience, confirms the importance of top-dressing at tillering or in late winter, which also ensures satisfactory supplies of available nitorgen at this stage. In the different years similar tendencies (three types) were observed for spike mass as for spike number. Among the varieties the spike number of GK Kincso was outstanding, indicating the positive effect of nitorgen top-dressing at tillering compared with the control.

Original languageHungarian
Pages (from-to)163-175
Number of pages13
JournalNovenytermeles
Volume46
Issue number2
Publication statusPublished - 1997

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top dressings
split application
tillering
winter wheat
inflorescences
fertilizers
nitrogen fertilizers
agricultural colleges
heading
plant breeding
nutrient requirements
forest soils
chemistry
fertilizer application
grain yield
rain
farms
winter

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

AN-fejträgya megosztásának hatäsa oszibüza-fajtäk kaläszänak tömegere es kaläszszämära. / Pethes, J.; Kiss, E.; Debreczeni, B.

In: Novenytermeles, Vol. 46, No. 2, 1997, p. 163-175.

Research output: Contribution to journalArticle

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title = "AN-fejtr{\"a}gya megoszt{\'a}s{\'a}nak hat{\"a}sa oszib{\"u}za-fajt{\"a}k kal{\"a}sz{\"a}nak t{\"o}megere es kal{\"a}szsz{\"a}m{\"a}ra",
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