5, long-term application, loosen the soil porosity, reduce soil compaction, increase soil fertilizer conservation, water retention.
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Results showed that long term application of NPK fertilizers or manure could increase soil biomass-N, especially the effect of manure on biomass-N was obvious.
结果表明,长期施用有机肥或化肥均能增加土壤生物量氮数量,尤以有机肥的作用明显。
Conclusion Long term application of Anticoagulant rodenticides can result in the variation of community structure of commensal rodents.
结论长期持续使用抗凝血剂能导致鼠类种群结构的变化。
Multiple effect theory has wide application areas and long-term application prospects.
倍效理论有着广阔的应用空间和长远的应用前景。
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