Growth characteristics of Nezasa dwarf bamboo (Pleioblastus variegatus Makino), 3: Seasonal changes in dry matter production and crude protein content in Nezasa-type grassland under cattle grazing
2000
Yamamoto, Y. (Kyushu National Agricultural Experiment Station, Nishigoshi, Kumamoto (Japan)) | Koyama, N. | Shindo, K. | Hagino, K.
Seasonal changes in dry matter production and crude protein content in Nezasa-type grassland under cattle grazing were investigated. Aboveground phytomass increased rapidly after April and was about 300g DM/square-meter in July and August, and then decreased gradually. Leaves of Pleioblastus variegatus accounted for the third of aboveground phytomass. The maximum rate of change in aboveground phytomass was shown in May. Annual aboveground production was 324-378g DM/square-meter, and herbage consumption was 217-252g DM/square-meter. Underground phytomass of P. variegatus increased by 319-649g DM/square-meter from spring to autumn. Crude protein contents of P. variegatus, Miscanthus sinensis and Arundinella hirta were high from April to May, and decreased gradually thereafter. Crude protein contents of leaf of P. variegatus were above 20% in April. Leaves showed higher crude protein contents than stems. Crude protein contents of rhizome and stem of P. variegatus tended to increase
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