Effects of soil pH and Fe2 ＋ content on growth and physiology of alfalfa

摘要：

Soils in the wet tropics contain high levels of iron that are toxic to alfalfa plants.The soils affected by iron toxicity are characterized by high iron concentration in the soil solution and low pH ( Pathirana, 2002).High concentration of water‐ soluble Fe2 ＋ results in growth retardation or even death of alfalfa plants.In addition to high levels of iron, these soils also have a low pH which leads to damages of root growth and rhizobium development, as well as deficiencies of other nutrients such as P and Ca, which results in severe yield losses.

关键词： soil pH iron toxicity Fe２＋ content alfalfa

作者: Yuan An Jianfeng Li Jixiong Sun

作者单位: College of Agronomy and biology,Shanghai JiaoTong university,Shanghai,China College of Pratacult ural Science,Gansu Agricult ural Univer sity,Lanzhou,China

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）