论文部分内容阅读
用微量混合硝酸稀土[RE(NO_3)_3·4H_2O]处理紫花首蓿,观察稀土元素对牧草的增产效果;并用吸光光度法测定了稀土元素在植物体内的含量。
Treated with rare earth nitrate [RE (NO_3) _3 · 4H_2O], the effects of rare earth elements on forage yield were observed. The contents of rare earth elements in plants were determined by spectrophotometry.