寒地黑土区春季施肥期对紫花苜蓿生产性能及营养品质的影响
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Effects of Fertilizing Time in Early Spring on Alfalfa (Medicago sativa) Production Performance and Nutritional Quality in Mollisol Area in Cold Region
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图9. 早春不同施肥时期对紫花苜蓿钙含量的影响 |
Fig. 9. Effects of different fertilizing periods in early spring on calcium content of Medicago sativa (%) |
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