干热河谷烟区垄高对土壤水分·烟株生长及烟叶经济性状的影响

目的]明确金沙江干热河谷烟区适宜的起垄高度。方法]开展不同起垄高度对比试验,测定土壤水分含量、烟株根系干重、烟株生育期、烟株农艺性状和烤后烟叶经济指标。结果]平地移栽技术利于土壤水分保持,促进烟株根系健壮生长,烟苗移栽后恢复性生长快,能按时进入旺长期,旺长时间长,大田烟株长势良好,打顶后烟叶能正常成熟采烤,烤后烟叶经济指标高。结论]该研究为干热河谷烟区烤烟进行科学移栽提供了参考依据。

Effects of Different Ridge Height on Soil Moisture,Tobacco Plant Growth and Economic Characters of Flue-cured Tobacco in Dry-hot Valley Area

Objective] To clear the suitable ridge height in Jinsha River dry-hot valley area.Method] Comparative experiments of different ridge height were carried out,the water contents of soil,dry-weight of root,growth period of tobacco plant,agronomic traits of plant and economic indicators of flue-cured tobacco leaves were determined.Result] The soil could conserved more water with flat transplanting,promoted growth of root,and the tobacco seedlings could recovery growth quickly after planting,entered the period of vigorous growth on time,the plant grew vigorously continued a longer period of time.The plant on field grew best with flat transplanting,the tobacco leaves could ripe and harvest on time after topping,the economic characters of flue-cured tobacco leave were highest.Conclusion]The study provides a reference for flue-cured tobacco scientifically transplanting in dry-hot valley area.