不同覆盖时期和覆盖方式对旱地冬小麦经济和环境效应的影响
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Effects of Different Mulching Periods and Mulching Practices on Economic Return and Environment
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图1. 永寿2017年6月至2019年6月各月降水量 |
Fig. 1. Precipitation from June in 2017 to June in 2019 in Yongshou |
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