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1985年,本所进行茶树稀土元素开发性试验,通过一年来的小区试验结果表明:用200p.p.m 的硝酸稀土(用全量计,后查明该稀土含氧化物38.5％以下同)水溶液喷施茶树,年施七次,比对照增加茶芽23.5％,亩增产干茶33.6公斤,为对照增产的141.5％,且施茶技术简便,无毒害,费用低廉,经济效益明显。今年以来,本所又同国营东太农场和国营红明农场协作,在1500亩的茶园中,喷施稀土水溶液,验证它的增产效果,及其对茶叶质量的影响。
In 1985, the Institute of tea rare earth element development test, through the year of the plot test results show that: with 200p.pm of nitric acid rare earth (with the total amount, after the discovery of the rare earth oxide 38.5% below the same) spraying Tea tree, seven times a year, compared with the control increased tea buds 23.5%, 33.6 kg of dry acres of tea, control output of 141.5%, and tea is simple, non-toxic, low cost, economic benefits. Since the beginning of this year, in collaboration with the State-owned Dongtai Farm and the state-owned Hongming Farm, the institute has also sprayed rare earth solutions in a 1500-acre tea plantation to verify its yield-increasing effect and its impact on tea quality.