果青牧场冷暖两季土壤与牧草中的钙磷含量变化

Contents of Calcium and Phoshorus in the Soil and Grass of the Guoqing Pastures in Warm and Cold Seasons

于2011年采集青海省玉树藏族自治州玉树县果青牧场冷季（4月）和暖季（7月）0～5 cm、5～10 cm土壤和可食牧草,并对其钙、磷元素进行分析。结果表明,土壤pH小于7.0,全钙含量非常低,全磷和速效磷含量中等;牧草冷、暖两季全钙平均含量为1.29、1.20 g/kg,全磷平均含量为0.31、1.84 g/kg,牧场全钙和全磷含量均偏低。

The 0～5 cm and 5～10 cm soil and edible grass in cold and warm seasons of April and July in Guoqing pastures in Yushu county of Qinghai Tibetan autonomous region were collected. The mineral elements of calcium and phosphorus was analyzed. The results showed that the pH of soil was below 7.0. The content of total Ca in soil was low while the content of total P and available P were medium. The average content of total Ca in cold and warm seasons were 1.29 g / kg and 1.20 g / kg, respectively. The content of total P in cold and warm seasons were 0.31 g / kg and 1.84 g / kg, respectively. Both of them were low.