• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Meeting of the European Association for Research on Plant Breeding Fodder Crops and Amenity Grasses Section >Indicating Soil Quality Using Urease and Saccharase Activity in Abandoned Grassland and Differently Managed Crop Fields
【24h】

Indicating Soil Quality Using Urease and Saccharase Activity in Abandoned Grassland and Differently Managed Crop Fields

机译：在废弃草原和不同管理的田野中使用脲酶和蔗糖酶活性的土壤质量

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to ascertain and make a comparison of bioactivity variation during vegetation period, soil samples were collected in fields of different fertilizing and farming systems: extensive (ExF), conventional (CF) and organic (OF) in order to determine the saccharase and urease activity responses to different land management systems and main soil quality indices: soil organic carbon (SOC), total nitrogen (N), and C/N ratio. Assessed hydrolases were observed as sensitivity indicators suitable to evaluate parameters of soil quality. The highest decrease and the lowest rates of urease (1.13 mg NrL,+-N g~') and saccharase (8.40 mg CG g"1 24 h_1) activities were observed in abandoned grassland soil where mineral fertilizers were not applied. Enzyme activity correlated stronger with SOC (r=0.7) or C/N ratio (r=0.6) than that with total nitrogen content (r=0.5-0.6). A significantly higher 3 year mean value of saccharase (27.00 and 12.6 mg CG g~') and urease (5.78 and 4.16 mg NH4+-Ng~' 24 h') activities were observed in soil under conventional and organic management compared with abandoned grassland. Thereafter enzyme activities might be related to the different levels of soil fertility.
机译：为了确定并进行植被期间的生物活性变化，在不同施肥和农业系统的领域收集土壤样品：广泛（EXF），常规（CF）和有机（OF），以确定蔗糖酶和脲酶不同土地管理系统和主要土壤质量指标的活动回应：土壤有机碳（SOC），总氮（N）和C / N比。评估的水解酶被观察为适合评估土壤质量参数的敏感性指标。在废弃的草原土壤中观察到最高的降低和尿素酶（1.13mg NRL，+ - N g〜'）和蔗糖酶（8.40mg CG G“1 24 h_1）活性。矿物肥料未应用。酶活性相关与总氮含量的SoC（r = 0.7）或c / n比（r = 0.6）更强（r = 0.5-0.6）。蔗糖酶的3年平均值（27.00和12.6mg cg g〜'）显着提高与废弃草原相比，在常规和有机管理下，在土壤中观察到脲酶（5.78和4.16mg NH4 + -NG〜'24h'）活性。此后，酶活性可能与不同水平的土壤肥力有关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号