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全氮含量是衡量土壤氮素供应的基本指标，反映了土壤中可被植物利用氮素的整体变化趋势。
Total nitrogen content is a basic indicator of soil nitrogen supply, reflecting the overall change trend of available nitrogen in soil.
全氮含量是衡量土壤氮素供应的基本指标，反映了土壤中可被植物利用氮素的整体变化趋势。
Total nitrogen content is a basic indicator of soil nitrogen supply, reflecting the overall change trend of available nitrogen in soil.
Total nitrogen content is a basic indicator of soil nitrogen supply, reflecting the overall change trend of available nitrogen in soil.
全氮含量是衡量土壤氮素供应的基本指标，反映了土壤中可被植物利用氮素的整体变化趋势。
Total nitrogen content is a basic indicator of soil nitrogen supply, reflecting the overall change trend of available nitrogen in soil.
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