The field experiments were carried out to study the effect of film-covered and potassium fertilizer on absorption rate of Se fertilizer and Se absorption and distribution of potato ( ZiHuabai) . The experimental results were as follows: The yield of whole plant and tuber were improved evidently by film-covered and potassium fertilizer. Meanwhile, Applying potassium improved se concentration and accumulation in whole plant and tuber, potassium and selenium make the Se-contents of tuber come to Se-enrichded level at 0. 148 mg · kg-1. The interaction was positive effect. In harvest stage, the absorption rate of Se in whole plant and tuber was respectively increased by 1. 5 and 2. 7 percentage point than potassium alone. Se-con-cents in whole plant and tuber and accumulation in whole plant were distinct effect by film-covered, but accumulation in tuber increased evidently. In harvest, the absorption rate of Se in whole plant and tuber was respectively increased by 2. 2 and 3. 1 percentage point through Se fertilizer and film-covered. Film-covered improved significantly Se to translate from stem and leave to tuber. In harvest stage, the translocation rate of film-covered was 53 percent, which increased 10. 1 percentage point.%采用田间试验方法研究了钾肥及覆膜对马铃薯硒素吸收分配的影响.结果表明:地膜覆盖及钾肥的施用提高了收获期马铃薯全株及块茎干物质产量；钾肥的施用显著提高马铃薯全株及块茎硒素含量与吸收累积量.钾肥与硒肥配合施用,使块茎硒素含量达0.148 mg·kg-1的富硒水平,对块茎硒素的富集有正交互效应,使收获期全株硒肥吸收率达17.8％,比单施硒肥提高1.5个百分点,块茎硒肥吸收率7.1％,提高2.7个百分点.覆膜对马铃薯全株、块茎硒含量及全株硒素吸收量无显著影响,但可显著提高块茎硒素累积量.覆膜硒肥配合,收获期全株硒肥吸收率20.0％,提高2.2个百分点,块茎硒肥吸收率10.1％,提高3.1个百分点.覆膜可显著促进硒素在体内由茎叶向块茎的转移.收获期,覆膜硒素运转率53％,提高10.1个百分点.
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