Establishment and Growth of Zoysia japonica Steud. Seedlings Transplanted on Gattle Dung Pats in a Temperate Pasture

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  • Kitagawa Miya
    National Institute of Livestock and Grassland Science
  • Ikeda Kentarou
    National Institute of Livestock and Grassland Science:(Present office)National Agricultural Research Center for Tohoku Region
  • Nishida Tomoko
    National Institute of Livestock and Grassland Science:(Present office)National Institute for Agro-Environmental Sciences
  • Yamamoto Yoshito
    National Institute of Livestock and Grassland Science
  • Nashiki Mamoru
    National Institute of Livestock and Grassland Science
  • Hatanaka Tetsuya
    National Institute of Livestock and Grassland Science

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Other Title
  • 糞上移植法を用いて寒地型牧草地へ導入したシバ(Zoysia japonica Steud.)の定着と拡大
  • フンジョウ イショクホウ オ モチイテ カンチガタ ボクソウチ エ ドウニュウシタ シバ Zoysia japonica Steud ノ テイチャク ト カクダイ

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Abstract

A 5-year study was conducted to obtain information on rapid laborsaving technique to introduce Zoysia japonica Steud. into a temperate grass pasture under cattle grazing. Z. japonica seedlings (as a plug of 8cm×8cm, 5cm deep) were transplanted in early summer of the first year, being lightly firmed either onto fresh dung pats (<4 days after excretion ; new laborsaving method) or into the soil (conventional method). From the second year, the pasture was divided into 2 plots with different stocking rates (high=5-8, low=3-6 head/ha). Seedlings transplanted on dung pats were never pulled out by grazing animals and survived similarly or better than those transplanted into the soil. Development of Z. japonica plants was better at the higher stocking rate where sward height was maintained at about 10cm above ground, with the coverage of the grass reaching 54% at the end of the fifth year. The results show that transplanting seedling onto dung pats is of potential value as a laborsaving method for introducing Z. japonica into a grazed temperate pasture and maintaining sward height at about 10cm through grazing management is effective for rapid dominance of the grass.

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