摘要
以小粒种咖啡4年生幼树为材料,通过田间栽培,研究复合稀土对咖啡幼树生长发育期、越冬期,结实期的影响.结果表明:用700mg/kg复合稀土溶液处理咖啡幼树,可以提高咖啡幼树叶片的叶绿素含量、促进植物光合强度。
Through experiments on growing in field, this paper studied the effects of composite rare earth on the growth and development of 4yearold coffee plants (Coffee arabica). The results showed that 700 mg/kg composite rare earth had positive influence on the content of chlorophyll in leaves of coffee plants and their photosynthesis rate, furthermore it accelerated the growth of coffee seedlings.
出处
《生态科学》
CSCD
1998年第1期10-14,共5页
Ecological Science
关键词
咖啡
稀土元素
叶绿素
光合强度
coffee, rare earth elements, content of chlorophyll, photosynthesis rate