Production of Poa crymophila cv.Qinghai in Qinghai-Tibet alpine region

Production of Poa crymophila cv. Qinghai in the alpine region of Qinghai Tibet was studied. In the alpine region without specific irrigation, P.crymophila cv. Qinghai grew very slowly in the first year of planting and faster in second and third years. The growing period was 106～110 days. P.crymophila cv. grew very fast from the flowering stage to the milky maturity stage and grew very slowly in the ripe stage. Crude protein content decreased with plant growth with the highest content in heading stage. Crude fiber content increased gradually with plant growth. Crude fat, nitrogen free extract and crude ash content have no significant change during the whole productive period.