豆-禾混播草地中紫花苜蓿比例对其固氮效率的影响及潜在生理机制
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Influence of Medicago sativa Proportion on Its Individual Nitrogen Fixation Efficiency and Underlying Physiological Mechanism in Legume-Grass Mixture Grassland
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图4. 紫花苜蓿生物固氮率对豆草种植比例的响应及其与土壤水分含量关系 |
Fig. 4. Response of BNF% for M. sativa to legume sowing proportion, and relationship between BNF% of M. sativa and soil water content |
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