1973 年 23 巻 1 号 p. 23-32
Experiments were made to understand the movement of nitrogen, potassium and phosphorus in the Zoysia matrella sp. community. The standing crop of the whole plant was measured from March, 1966 through December, 1967. The decomposition rate of litter was estimated by the litter bag method from August, 1967 through August, 1968. The maximum standing crops were 2089g d.w./m^2 in 1967. The decomposition amounts of litter were 214g/m^2 ・yr and 529g in 1966 and 1967,respectively. In 1967. the amount of nitrogen absorbed in the community was 22.6g/m^2・yr, the amount lost from the plant was 9.2g and the amount that disappeared in the litter was 5.5g, and for potassium, 11.6g, 5.6g and 2.1g and for phosphorus, 3.1g, 1.5g and 0.7g, respectively.
