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引用次数: 2
低试羊茅干草田土壤钾磷含量测定
奥扎克高地的一块羊茅干草田施用了磷（P）和钾（K）肥料，使土壤测试水平高于目标水平。施肥量用于在一年、四年或八年内建立土壤试验P和K水平。八年的平均干草产量在不同的收获时间之间没有显著差异。然而，与未处理的对照相比，施用P和K显著提高了干草产量和质量。
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