Effects of cutting height and frequency on foliage yield and reserved carbohydrate content in Japanese lawn grass (Zoysia japonica Steud.)
1999
Takahashi, T. (Yamaguchi Univ. (Japan). Faculty of Agriculture) | Nomiyama, A. | Hosoi, E. | Ozawa, S.
To establish an approach to improve the persistency of Japanese lawn grass in grassland, changes in foliage yield and stolon's reserved carbohydrate content were examined at different cutting heights and frequencies from March until November in 1996. Cuttings at two weeks intervals at 0cm and 3cm height above the ground level and at four and six weeks intervals at 3cm height, designated as 0cm.2wks, 3cm.2wks. 3cm.4wks and 3cm.6wks, respectively, were conducted. The foliage yield was lower in 0cm.2wks than in 3cm.2wks, especially in June and July. The stolon's reserved carbohydrates were also lower by 37% in 0cm.2wks than in 3cm.2wks in early November. On the other hand, the total foliage yield was higher by 18% in 3cm.4wks and in 3cm.6wks than in 3cm.2wks, while the stolon's reserved carbohydrates were lower by 20% and 1% in 3cm.4wks and 3cm.6wks, respectively, than in 3cm.2wks in early November. The infrequent cutting for improving the productivity may make the persistency worse by lowering the reserved carbohydrate level in the Japanese lawn grass sward
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