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肥料用量 = (目標養分需求量 ÷ 肥料養分含量) × 100
例:需純氮12kg,尿素含氮46%,則尿素用量 = 12 ÷ 0.46 = 26.1kg
化肥配比計算器。農業種植工具,幫助計算種植引數與產量。