Study on Nutritional Value and Carrying Capacity of Kobresia pygmea Pasture in Henan County
In order to know the nutritional value and carrying capacity of Kobresia pygmea pasture in Henan county,Qinghai province, approximate analysis method and in vitro gas production were used to evaluate the nutritional value of grass, output and the best carrying capacity in different seasons combined with grass production.The results showed that the yield was highest in green stage, and yield of fresh grass, hay, esculent herbage, were 717.8 g/m2 ,273.5 g/m2 , 248.2 g/m2;the contents of CP, EE, ADF,NDF ,ASH ,Ca,P were 27.65 g/m2 ,8.25 g/m2 ,70.52 g/m2 , 114.76 g/m2 ,21.23 g/m2 ,3.02 g/m2 ,0.17 g/m2 in green stage, respectively;OMD, DE, ME were 83.65％ , 13.98 MJ/kg, 12.90 MJ/kg in green stage;the best carrying capacity of withered grass period, grass period, green stage, withered yellow grass were 2.36,8.67,23.49,23.18 SU/ha, respectively.The research validated that production, output of nutrition and the best carrying capacity firstly increased and then decreased, and nutritional value gradually decreased with growing processes.
Kobresia pygmea pasturephonological phaseproduction of grassnutrition valuecarrying capacity
国家科技期刊平台
NSTL
万方数据
维普
