Using plough down of sugar beet tops to affect the production parameters of spring barley in a maize-growing region
2001
Cerkal, R. | Zimolka, J. | Hrivna, L. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic))
In a polyfactorial field experiment conducted in 1998-2000 we studied the effect of three systems of sugar beet top management, two sowing rates and two levels of nitrogen fertilisation, and their interaction, on production parameters of the spring barley variety Kompakt. Based on statistical evaluations using the variance analysis, it was found that the weather conditions had a dominant effect on the variability of all the characters. The system of sugar beet top management had a statistically highly significant effect on TGW, yields and the proportion of grain over 2.5 mm sieve, and a significant effect on the number of grains per spike. Dependent on weather, and particularly on rainfall, the ploughed down tops promoted yield formation. It was found that the stands established using a lower sowing rate (3.5 MGS x 4.5 MGS) had a strong self-regulating capacity. Fertilisation with 30 kg N/ha compared to 0 kg N/ha resulted in a statistically significant yield increase (by 0.17 t/ha) and worse technological parameters of the barley grain.
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