Wpływ metod zwalczania mniszka pospolitego (Taraxacum officinale) na względną jakość pokarmową siana łąkowego
Streszczenie
The aim of this work was the examination the effect of selected methods of Taraxacum
officinale control on the hay quality from grassland. The field experiment was conducted in the
years 2007–2009 on a meadow in śelków near Siedlce (geographical coordinates: 52º08' N and
22º11' E). It was conducted in randomized blocks with three replications. There were two
experimental factors, mechanical control methods by involving of Taraxacum officinale and
cutting up the plants and four selected herbicides (Rancho 242 EC, Bofix 260 EC, Starane 250
EC and Mniszek 540 SL). Plot area was 9 m2. In each growing season three cuts were
harvested. Immediately after cutting the green matter was weighted and was taken 0.5 kg
sample of green matter, in order to botanical – weight analyze. Then the plant material has been
dried and subjected to chemical analysis. The study results were used to evaluate feed from
permanent meadows by Linn-Martin test. The highest values of RFV determining the relative
nutritive value of forage harvested from control objects throughout the whole period of the
experiment. It caused in the classification of that feed in the second of the fifth grades. Silage
feed value obtained from other objects which were used both chemical and mechanical control
methods of Taraxacum officinale was slightly lower compared to the control object and was in
third grade quality.
Zbiory
- Wydanie 302(25) 2013 [11]
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