摘要
稀土对刺槐苗木生理特性影响的研究赵兰勇，梁玉堂（山东农业大学林学院泰安２７１０１８）王九龄（北京林业大学北京１０００８３）关键词稀土，刺槐，光合速率，叶绿素含量，水分利用效率，矿质元素含量近年来，稀土元素在农业上的应用研究越来越受到人们的重视，并且已...
The effects of mixed rare - earth elements of La and Ce on some physiological characteristics of Robinia pseudoaeacio one - year' s seedlings (tree seedling, cuttings, root - cuttings) were studied. The results show that spraying the rare - earth elements solution in 700mg / kg on the leaves of R. pseudoaeacio, the net photosynthetic rate was increased by 33.8%- 40.3%, the content of chlorophyll was increased by 22.3%-33.1%, the water applying efficiency would be increased by 1 0.2%- 14.0%. The total nitrogen, phosphate. and potassium content of the leaves can be increased respectively by 3 1 .7%-46. 1%, 22.0%-32.7% and 42.9%- 55.6%.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1997年第4期374-379,共6页
Scientia Silvae Sinicae
关键词
稀土
刺槐
光合速率
叶绿素
水分
矿质元素
Rare - earth elements, Photosynthetic rate, Content of chlorophyll, Water utilization efficiency, Mineral content
