不同施肥条件对谷子β-胡萝卜素和叶黄素含量的影响

Effect of Different Fertilization Conditions on the Content of β-Carotene and Lutein in Foxtail Millet

为了探究不同施肥条件对谷子类胡萝卜素含量的影响及筛选谷子高类胡萝卜素含量的施肥种植条件,运用L16(45)正交试验,以16种不同氮、磷、钾施肥配比作为长农35号谷子的施肥种植条件,测定各施肥条件下谷子β-胡萝卜素和叶黄素含量,并对其进行分析。结果表明,不同施肥条件对谷子β-胡萝卜素和叶黄素含量均有显著影响,最佳施肥条件为尿素485 g、重过磷酸钙0 g、硫酸钾300 g,此条件下谷子的β-胡萝卜素和叶黄素总含量最高。通过方差分析和偏相关分析得到氮、磷、钾肥对谷子β-胡萝卜素和叶黄素含量的影响大小依次为氮肥>钾肥>磷肥。本研究为培育高类胡萝卜素含量谷子所需的施肥条件提供了理论依据和现实基础。

In order to study the effects of different fertilization conditions on the carotenoid content of foxtail millet and simultaneously select the planting fertilization conditions of high carotenoid content foxtail millet,3 factors and 4 levels of L16（ 45） orthogonal experiments were used here,in whic total 16 different fertilization conditions（ different proportion of N,P and K） for Changnong35,and the corresponding content of beta-carotene and lutein were investigated. The results showed that fertilization had significant influence on beta-carotene and lutein content. The optimum fertilization conditions were urea 485 g,triple superphosphate 0 g and potassium sulfate 300 g,under which the total content of beta-carotene and lutein were highest. Analysis of variance and bias close analysis showed that nitrogen fertilizer most affected the content of beta-carotene and lutein,followed by potassic fertilizer and phosphate fertilizer. This study provided theoretical and practical basis for exploration of fertilization conditions for high carotenoid content of foxtail millet.