CAJ | 학술논문

通过田间试验研究了不同氮磷水平对油麦菜产量和食用部分硝酸盐含量的影响.结果表明:氮磷投入量比高量施肥减少46.4%,油麦菜增产32.4%.适宜的氮磷投入量和施用比例是油麦菜高产的重要因素,油麦菜产量较高时氮的施用范围为180～270 kg·hm~(-2),磷的施用范围为125～190 kg·hm~(-2).油麦菜硝酸盐含量随氮素水平的提高呈递增趋势,适量磷素能够抑制硝酸盐的积累.
통과전간시험연구료불동담린수평대유맥채산량화식용부분초산염함량적영향.결과표명:담린투입량비고량시비감소46.4%,유맥채증산32.4%.괄의적담린투입량화시용비례시유맥채고산적중요인소,유맥채산량교고시담적시용범위위180～270 kg·hm~(-2),린적시용범위위125～190 kg·hm~(-2).유맥채초산염함량수담소수평적제고정체증추세,괄량린소능구억제초산염적적루.
An experiment was carried out on field to investigate the relationship between the yield, nitrate accumulation and N,P fertilization level in lettuce.The yield of lettuce increased 32.4%, when the rates of N and P were reduced to 46.4% of that in high fertilizer groups.N and P, applied in proper combinations, are important factors for high yield of lettuce.The optimal level of nitrogen for high lettuce yield was 180～270 kg·hm~(-2),and that of phosphorus was 125～190 kg·hm~(-2).The content of nitrate in lettuce increased with the increasing of nitrogen levels of fertilizers.Appropriate phosphorus levels could restrain nitrate accumulation of lettuce.Proper N,P combinations could improve the quality of lettuce and increase yield.