Theoretically, one would expect the distribution of a fumigant to be more rapid at lower soil water contents.
在理论上，预计熏蒸剂的分配在土壤水分含量较低时会更迅速。
Soil water contents and some leaf water physiological parameters in straw mulched and unmulched pear orchards were determined during 1997~1998.
1998年对梨园覆盖秸秆后的土壤含水量和叶片几项水分生理指标进行了测定。
The results showed that occurrence and distribution of weed species were related closely with the location, soil water contents and management of the turf.
调查结果表明，南京市草坪杂草的发生和分布与草坪所处地理位置、土壤水分条件及管理水平有密切关系；
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