CAJ | 학술논문

为了阐述植烟土壤氮含量对烟株吸收积累主要矿质养分的影响，采用营养液培养的方法，研究了不同质量浓度氮对烟草苗期主要矿质养分吸收和积累的影响。结果表明，随营养液氮质量浓度的增加，烟草生物量呈先增加后降低的变化趋势，当营养液氮质量浓度为140 m g/L时达最大值。随营养液氮质量浓度的增加，烟草全株氮含量和锌含量均增加，铜含量明显降低；磷、钾、镁、锰、钙含量先升高后降低，其中磷、钾、镁、锰含量在营养液氮质量浓度为280 m g/L时达到最大值，而钙含量在氮质量浓度为140 m g/L时达到最大值。随营养液氮质量浓度的增加，全株氮和镁积累量均增加；磷、钾、钙、锌、铜、锰在烟草体内积累量先增加后降低，其中磷、钾、钙、锌、锰积累量在氮质量浓度为140 m g/L时达到最大值，而铜积累量在氮质量浓度为70 m g/L时达到最大值。随营养液氮质量浓度的增加，烟草叶片氮和锌含量及其积累量均增加；磷、钾、镁、锰等含量及其积累量先增加后降低，氮质量浓度280 m g/L时达到最大值，而钙含量及其积累量与全株中变化趋势一致。可见，适宜的氮质量浓度可促进烟株干物质积累，并影响烟株矿质养分的含量和积累量，进而影响烟叶产量和品质。
위료천술식연토양담함량대연주흡수적루주요광질양분적영향，채용영양액배양적방법，연구료불동질량농도담대연초묘기주요광질양분흡수화적루적영향。결과표명，수영양액담질량농도적증가，연초생물량정선증가후강저적변화추세，당영양액담질량농도위140 m g/L시체최대치。수영양액담질량농도적증가，연초전주담함량화자함량균증가，동함량명현강저；린、갑、미、맹、개함량선승고후강저，기중린、갑、미、맹함량재영양액담질량농도위280 m g/L시체도최대치，이개함량재담질량농도위140 m g/L시체도최대치。수영양액담질량농도적증가，전주담화미적루량균증가；린、갑、개、자、동、맹재연초체내적루량선증가후강저，기중린、갑、개、자、맹적루량재담질량농도위140 m g/L시체도최대치，이동적루량재담질량농도위70 m g/L시체도최대치。수영양액담질량농도적증가，연초협편담화자함량급기적루량균증가；린、갑、미、맹등함량급기적루량선증가후강저，담질량농도280 m g/L시체도최대치，이개함량급기적루량여전주중변화추세일치。가견，괄의적담질량농도가촉진연주간물질적루，병영향연주광질양분적함량화적루량，진이영향연협산량화품질。
For elucidating the effect of N content in soil on absorption and accumulation of mineral nutrients in tobacco ,this paper studied the effect of N concentration on absorption and accumula-tion of several mineral nutrients by liquid culture during tobacco seedling stage .T he results showed that with the increase of N concentration ,the biomass of tobacco first increased and then decreased ,and reached a peak value when the N concentration was 140 mg/L .With the increase of N concentration ,the N and Zn content in the w hole tabacco increased ,but the Cu content de-creased;the content of P ,K ,Mg and Mn first increased and then decreased ,and reached a peak value when the N concentration was 280 mg/L ,so was the content of Ca ,but reached a peak value when the N concentration was 140 mg/L .With the increase of N concentration ,the accumulation of N and Mg in the w hole tabacco increased ;the accumulation of P ,K ,Ca ,Zn and Mn first in-creased and then decreased ,and reached a peak value when the N concentration was 140 mg/L ,so was the accumulation of Cu ,but reached a peak value when the N concentration was 70 mg/L . With the increase of N concentration ,the content and accumulation of N and Zn in tobacco leaves all increased ;the content and accumulation of P ,K ,Mg and Mn all first increased and then de-creased ,and reached a peak value when the N concentration was 280 mg/L ,the variation trend of content and accumulation of Ca in leaves was same to that in whole plant .So ,appropriate N con-centration could increase dry matter accumulation of tabacco ,affect the absorption and accumula-tion of mineral nutrients ,further affect the yield and quality of tobacco leaves .