Interactions between the elements N, Cu and Mo were studied on rape in 2000 in a field experiment set up on chernozem loam soil with lime deposits. The ploughed layer of the soil contained 3% humus, around 5% CaCO3 and around 20% clay. Soil analysis showed that the area was well supplied with Ca, Mg, K and Mn, had satisfactory Cu content, but was only poorly or moderately supplied with P and Zn. The groundwater depth was 13–15 m and the area was prone to drought. The experiment was originally set up in a split-plot design with 4N × 3Cu = 12 treatments in three replications, giving a total of 36 plots. The N rates, applied as calcium ammonium nitrate, were 0, 100, 200 and 300 kg ha−1 and the Cu rates, in the form of CuSO4, were 0, 50 and 100 kg ha−1. In the 5th year of the experiment the 15 m long plots were halved and the two half-plots were separated by a 1 m path. The experiment thus became a strip-split-plot design, consisting of 4N×3Cu×2Mo = 24 treatments in three replications, giving a total of 72 plots. The 48 kg ha−1 Mo was applied in the form of (NH4)6Mo7O24·4H2O. The generative phases of flowering and ripening were characterized by drought and depression. The main results were as follows:
BaranyaiF., FeketeA.ésKovácsI.1987. A magyarországi talaj tápanyagvizsgálatok eredményei. Mezőgazdasági Kiadó. Budapest.
BaranyaiF., FeketeA.ésKovácsI.1987. A magyarországi talaj tápanyagvizsgálatok eredményei. Mezőgazdasági Kiadó. Budapest.)| false
Egnér, H., Riehm, H. & Domingo, W. R.1960. Untersuchungen über die chemische Bodenanalyse als Grundlage für die Beurteilung des Nährstoffzustandes der Böden. II. K-Lantbr. Högsk. Ann.26:199-215.
Egnér, H., Riehm, H. & Domingo, W. R.1960. Untersuchungen über die chemische Bodenanalyse als Grundlage für die Beurteilung des Nährstoffzustandes der Böden. II. K-Lantbr. Högsk. Ann.26:199-215.)| false
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Agrokémia és Talajtan
2021 Volume 70
Magyar Tudományos Akadémia
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