Grasslands for animal production in Japan and their future prospects
2006
Okajima, T.(Niigata Univ. (Japan). Faculty of Agriculture)
In the middle of 19th century, a lot of pasture species were introduced from foreign countries and artificial pastures were developed, and utilization of artificial pastures were accelerated by a lot of subsidies financed by the government in the 1960's. However, the grazing management of pastures failed to be a main current in Japan. One of the reasons can be undergrazing of pastures, or rank growth of broadleaf dock (Rumex obtusifolius), or tall sward height utilization of tall grass type species such as Dactylis, Phleum and Lolium. So, I would like to propose "short sward height utilization" of tall grass type species such as Dactylis, Lolium and Festuca. The experiment of short sward height management of Dactylis pasture showed that the short sward height utilization resulted in a high carrying capacity (ca. 570 cow day) of the pasture. And also, short and stoloniferous species such as Agrostis, Poa and Zoysia are necessary for the grazing management of pastures.
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