论文部分内容阅读
用５０ｍｇ／ｋｇ、１００ｍｇ／ｋｇ、２００ｍｇ／ｋｇ和４００ｍｇ／ｋｇ稀土喷施银杏幼苗。结果表明，１００ｍｇ／ｋｇ稀土对银杏幼苗生长有明显促进作用，而４００ｍｇ／ｋｇ稀土抑制银杏幼苗生长。
Ginkgo seedlings were sprayed with rare earths at 50, 100, 200 and 400 mg / kg. The results showed that 100 mg / kg rare earth significantly promoted the growth of ginkgo seedlings, while 400 mg / kg rare earth inhibited the growth of ginkgo seedlings.