名词
中文翻译：土壤肥力因子
同义词：
['soil fertility', 'soil fertility factor', 'soil fertility index']
例句：
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1. The soilfertility factor is crucial for plant growth.
土壤肥力因子对于植物生长至关重要。
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2. The research team found that the soil fertility factor was significantly related to crop yield.
研究小组发现，土壤肥力因子与作物产量有显著相关性。
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3. To improve soil fertility, farmers should apply organic fertilizers regularly.
为了提高土壤肥力，农民应该定期施用有机肥料。