施氮量与移栽时穴施化肥种类对中烟100产质量的影响

Effects of Fertilizing Rate of Nitrogen and Hole Applied Fertilizers on Yield and Quality of Zhongyan 100

摘要: 通过大田试验,研究了4种施氮水平和移栽时穴施化肥种类(提苗肥)对烤烟品种中烟100产质量的影响。结果表明:中烟100品种在中等肥力土壤条件下,以施纯氮6~7kg/667m²时烟叶经济性状较好;以施纯氮5~6kg/667m²的原烟外观质量和评吸质量较好。综合考虑烟叶质量和经济性状,以施纯氮6kg/667m²为宜。磷酸二铵作提苗肥能促进大田烟株前期生长;硝酸钾作提苗肥时,大田前期烟株长势相对较弱,但最大叶面积较大,烤后烟叶外观质量表现较好,产值相对较高。综合分析,以硝酸钾作提苗肥效果较好。

Abstract: The field experiments in soil with moderate fertility were conducted to study the effects of 4 levels of nitrogen rates and hole applied fertilizers on the yield and quality of cv.Zhongyan 100.The results showed that when nitrogen rate was 90-105kg/ha, it gave better economic characters.However, when nitrogen rate was 75-90kg/ha, it gave finer leaf appearance and smoking quality.Balancing the two, the suitable nitrogen rate was 90kg/ha.In the case of KNO₃, it gave bigger leaf area, better leaf appearance, and relatively higher output value, although the growth of tobacco plant in early stage was weaker.KNO₃ was better than (NH₄)₂HPO₄ on the whole.