The net primary productivities of aboveground, underground, part and whole sward (i.e. aboveground + underground part) were 340.09,780.36 and 742.50g/m2. yr., dry matter, respectively. The net nutrient matter produtivity of aboveground part consisted of crude protein 50.29g/m2. yr.,crude fat 8.49, crude fibre 89.40, nitrogen-free extract 159.28 and crude ash 32.12 (in which calcium 3.65 and phosphorus 0.51).The maximum standing caloric of aboveground, underground and whole swardoccurred on 21, August 20 Jun...