CAJ | 학술논문

采用田间小区试验研究了不同供氯水平对烤烟生长发育和养分吸收的影响.结果表明,施氯能促进烤烟生长发育,尤其当供氯水平为90.0 kg·hm~(-2)时,烤烟株高明显优于对照和其余处理.供氯水平在45.0～90.0 kg·hm~(-2)的范围内,烟叶对氮的吸收量明显高于其他处理,且在供氯水平为90.0 kg·hm~(-2)时达到峰值.施氯促进烤烟对钾的吸收,但烟叶中K_2O/Cl随供氯水平增加而降低.氯与磷之间存在着拮抗关系.在22.5～67.5 kg·hm~(-2)施氯范围内,烟叶含钙量随着氯水平增加而增加.在22.5～45.0 kg·hm~(-2)施氯范围内,施氯促进烟叶对镁的吸收.烟叶各叶位对氯的吸收量则表现出随供氯水平增加而增加的趋势,且各叶位氯吸收量表现为下部叶>中部叶>上部叶.供氯水平在22.5 kg·hm~(-2)时,上中下部烟叶的氯含量均在最佳范围(0.3%～0.8%)内.
채용전간소구시험연구료불동공록수평대고연생장발육화양분흡수적영향.결과표명,시록능촉진고연생장발육,우기당공록수평위90.0 kg·hm~(-2)시,고연주고명현우우대조화기여처리.공록수평재45.0～90.0 kg·hm~(-2)적범위내,연협대담적흡수량명현고우기타처리,차재공록수평위90.0 kg·hm~(-2)시체도봉치.시록촉진고연대갑적흡수,단연협중K_2O/Cl수공록수평증가이강저.록여린지간존재착길항관계.재22.5～67.5 kg·hm~(-2)시록범위내,연협함개량수착록수평증가이증가.재22.5～45.0 kg·hm~(-2)시록범위내,시록촉진연협대미적흡수.연협각협위대록적흡수량칙표현출수공록수평증가이증가적추세,차각협위록흡수량표현위하부협>중부협>상부협.공록수평재22.5 kg·hm~(-2)시,상중하부연협적록함량균재최가범위(0.3%～0.8%)내.
The effects of chlorine application levels on the growth and nutrient absorption of flue-cured tobacco were studied in this paper. The results showed that chlorine application level enhanced the growth of flue-cured tobacco. Application of Cl significantly promoted the height of flue-cured tobacco as the chlorine application level was 90.0 kg·hm~(-2).The uptake of N with Cl application level being 45.0～90.0 kg·hm~(-2) was significantly higher than the other treatments. The highest uptake of N was observed when the Cl application level was 90.0 kg·hm~(-2).Application of C1 increased the absorption of K, but with the increase of Cl rates the K_2O/Cl ratio in tobacco leaf decreased.Antagonistic effect existed between Cl and P. The calcium content of tobacco leaf increased with Cl application level within the range of 22.5～67.5 kg·hm~(-2). The uptake of magnesium was improved with Cl application level being 22.5～45.0 kg·hm~(-2).Chlorine uptake in different leaves of tobacco increased with the increase of chlorine application levels for all treatments.The magnitude order of Cl content in leaves at different positions was lower>middle>upper.The contents of chlorine in upper,middle and lower leaves were the best(0.3%～0.8%) with 22.5 kg·hm~(-2)of chlorine applied.