摘要
通过对高寒退化草地采取施肥、划破草皮和施用增产菌3种改良措施。结果表明,3种措施都能增加草群高度、盖度、密度、频度和产量,施肥可使牧草产量增加43．9％-205．6％,划破草皮和施用增产菌可分别使牧草产量增加 12％、4．1％,其中施肥是3种措施中最有效的途径。
Three measures of fertilizing ,meadow cutting and using production-increasing bacteria were conducted to solve degeneration problem in recent years on alpine grassland. The results indicated that all of the three measures could increase the height, coverage, debsity, frequency and weight of community.The fertilizing increased the yield of herbage by 43.9%-205.6%. The meadow cutting and using production-increasing bacteria had a less improving effect on the grassland,which increased the yield by 12 % and 4. 1%, respectively. Among the three measures, the fertilizing showed the most effective approach for improving degraded grassland.
出处
《甘肃农业大学学报》
CAS
CSCD
2005年第6期797-801,共5页
Journal of Gansu Agricultural University
关键词
高寒草地
施肥
划破草皮
增产菌
alpine grassland
fertilizing
sod cutting
production-increasing bacteria
