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为获得高产优质的烟叶，必须在重视品种、施肥、栽培等措施的基础上，重视微量元素与其它营养元素的配合施用。1996年4月我所引进稀土高效多元素增长剂──“植乐”（以下简称“植乐”）在烟田上进行了试验。结果如下：1试验材料与方法1．1“植乐”由吉林省梅河口市稀土生化厂?
In order to obtain high yield and good quality tobacco, we must pay attention to the combination of trace elements and other nutrients on the basis of the emphasis on varieties, fertilizers, cultivation and other measures. In April 1996, I introduced the Rare Earth Efficient Multi-element Growth Agent - “Phyto” (hereinafter referred to as “Phyto”) was tested on tobacco fields. The results are as follows: 1 test materials and methods 1.1 “Phytosan” from Jilin Province Meihekou City rare earth biochemical plant?