本实验尝试使用尿素水溶液浸泡杉木根后再用水蒸气法提取杉木根精油。
In our experiment, essential oil was attempted to extract from fir immersed in urea solution.
本研究测定了浙江省一些林场内杉木林地杉木根际和非根际土壤的微生物数量和酶活性。
The number of microbes and enzyme activities in the rhizosphere and bulk soil of Chinese fir were analysed.
以杉木根为原料通过水蒸气蒸馏法提取杉木精油，从杉木根精油中精制提取柏木脑，再以柏木脑为原料合成甲基柏木醚。
The fir essential oil was extracted from fir root by steam distillation method, from which cedrol was extracted, and then, cedrol methyl ether was synthesized based on cedrol.
以油茶、杉木、杨树为研究对象，探讨木本植物根际联合固氮体系。
Tea-oil tree~. Chinese fir and poplar wcre tested to determine whether nitrogen fixation occurred in these woody plants.
以油茶、杉木、杨树为研究对象，探讨木本植物根际联合固氮体系。
Tea-oil tree~. Chinese fir and poplar wcre tested to determine whether nitrogen fixation occurred in these woody plants.
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