摘要
This study is aimed to investigate the activities of phosphomonoesterase (acid ,neutral ,and alkaline ),phosphodiesterase and phosphotriesterase in a rice planting meadow brown soil at the lower reach of Liao River,and their responses to different fertilization treatments.The results showed that there was no significant difference in soil total P and organic P contents among all treatments,but soil available P content was significantly higher in treatment OM than in other treatments.Soil acid and neutral phosphomonoesterase had a higher activity than alkaline phosphomonoesterase and phosphodiesterase,while phosphotriesterase had the lowest activity.No significant difference was found in phosphatase activities between different fertilization treatments.Soil acid phosphomonoesterase activity had a significant correlation with soil total P and available P contents,while soil phosphodiesterase activity significantly correlated with soil organic P content.
This study is aimed to investigate the activities of phosphomonoesterase (acid ,neutral ,and alkaline ),phosphodiesterase and phosphotriesterase in a rice planting meadow brown soil at the lower reach of Liao River,and their responses to different fertilization treatments.The results showed that there was no significant difference in soil total P and organic P contents among all treatments,but soil available P content was significantly higher in treatment OM than in other treatments.Soil acid and neutral phosphomonoesterase had a higher activity than alkaline phosphomonoesterase and phosphodiesterase,while phosphotriesterase had the lowest activity.No significant difference was found in phosphatase activities between different fertilization treatments.Soil acid phosphomonoesterase activity had a significant correlation with soil total P and available P contents,while soil phosphodiesterase activity significantly correlated with soil organic P content.
出处
《应用生态学报》
CAS
CSCD
北大核心
2005年第3期583-585,共3页
Chinese Journal of Applied Ecology
基金
中国科学院知识创新工程重大资助项目 (KZCX 2 41 3) .
关键词
施肥措施
棕壤
水稻田
磷酸酶活性
草甸
响应
OM
Fertilization, Phosphomonoesterase, Phosphodiesterase, Phosphotriesterase, Meadow brown soil
