In order to study the effects of acidified soil on indexes of roots physiological properties,roots activity,absorption area,activity of POD and SOD and indexes of nitrogen utilization efficiency of late rice to discuss the influence approach of acidified soil on nitrogen utilization efficiency of late rice,experiments were conducted in fields with different p H in Changsha,Hunan Province,with 7 acid-sensitive late rice varieties with different nitrogen sensibility screened from former tests as materials. The results showed that activity,total absorption area,active absorption area and POD acti...
