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初步调查表明，西双版纳大多数砂仁植区砂仁花期土壤含水量偏低、空气相对湿度偏低、土壤肥力降低是大面积减产的因素。
Preliminary investigations showed that the moisture content of Amomum villosum in most of Amomum villosum areas was low, the relative humidity of air was low, and the decrease of soil fertility was the factor of large-scale yield reduction.