农作物-----钾素；秸杆；回收-农作物秸杆中钾元素的回收与利用 Key words:cervical cancer；selenium；antioxidant [gap=162]关键词：钾素；秸杆；回收 ......
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rice straw秸杆 Enzyme activities variation in flooded soils amended with Bt transgenic rice straws at different stages of plant develop...
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3. The application of cereal straw increased the soil water contents.
3、施用禾本科秸杆能增加土壤的水分含量。
参考来源 - 云南植烟土壤氧化还原状况和烤烟营养的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
其重要的原料是手工制成的秸杆捆。
寻找它的下午休息的狗跳进了黄牛和位置的饲槽那里舒适地在秸杆。
A Dog looking out for its afternoon nap jumped into the Manger of an Ox and lay there cosily upon the straw.
免耕、垄作、秸杆覆盖相结合能改善并维护土壤结构，提高土壤肥力。
Combined measures of no-tillage, mulch straw and ridge cultivation can improve and increase soil fertility.
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