Have root zone samples been submitted to a physical soil testing lab for analysis?
根系层土壤样本是否在实验室进行过物理性质分析？
Evapotranspiration, yield, production value, and soil moisture in root zone for 30 kinds of intercropping systems under different irrigation water application were studied in this paper.
对30余种间作套种组合种植作物的耗水量、产量、产值及其根区土壤含水量进行了分析研究。
The results showed that the allelopathic effects of extracts from Root-zone soil of Panax notoginseng on root length, seedling height, and fresh weight and NR activity of notoginseng were different.
为了探讨三七根区土壤提取物对三七幼苗的化感作用，以不同极性三七根区土壤提取物对三七幼苗进行生物测定。
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