By field experiment, chemical analysis and biological statistics, the effects of Selenium,N P K fertilization,film-covered on the Selenium absorption and distribution,yield and quality of potato were systematically studied with Purple and White.

• 以紫花白为试验材料,采用田间试验、化学分析、生物统计相结合的方法,系统研究了硒肥、氮磷钾化肥、覆膜对马铃薯硒素吸收分配、产量形成及营养品质的影响。