干重含水率
Dry heavy moisture content
以上为机器翻译结果，长、整句建议使用 人工翻译 。
研究结果表明：在同一灌水方式中土壤含水率下限小的冬小麦根冠比大，且根系总的干重也大；
Results showed that there were a big root-canopy ratio and dry weight when the lower limit of controlled soil water content decreased at the same irrigation treatment.
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