Soil CO2 Emissions as Affected by 20-Year Continuous Cropping in Mollisols

来源 :Journal of Integrative Agriculture | 被引量 : 13次 | 上传用户:w168730018
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Long-term continuous cropping of soybean(Glycine max), spring wheat(Triticum aesativum) and maize(Zea mays) is widely practiced by local farmers in northeast China. A field experiment(started in 1991) was used to investigate the differences in soil car
其他文献
Soil organic carbon(SOC) is one of the main carbon reservoirs in the terrestrial ecosystem. It is important to study SOC dynamics and effects of organic carbon
期刊
Increasing basic farmland soil productivity has significance in reducing fertilizer application and maintaining high yield of crops. In this study, we defined t
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
Soil organic carbon(SOC) and soil Olsen-P are key soil fertility indexes but information on their relationships is limited particularly under long-term fertiliz
期刊
目的 总结骨质疏松性椎体压缩骨折在退变性脊柱侧凸中分布的规律性,分析退变性脊柱侧凸患者发生椎体压缩骨折的危险因素.方法 回顾性分析2004年7月至2012年7月治疗136例退变性脊柱侧凸患者资料,根据术前是否发生骨质疏松性椎体压缩骨折分为骨折组和无骨折组.骨折组34例,男9例,女25例;年龄(71.7±1.7)岁.无骨折组102例,男23例,女79例;年龄(63.3±6.7)岁.采用视觉模拟评分(
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥