重茬肥对重茬烤烟各器官磷吸收的影响

Effects of Cropping Fertilizers on the Different Organs Phosphorus Uptake in Flue-cured Tobacco

以重茬4年烤烟为试验材料,设置对照、常规施肥、重茬肥3个处理,研究了烤烟磷吸收规律。结果表明:烤烟收获期重茬肥处理根系内磷吸收量分别高于对照和常规施肥处理51.32%、38.12%;茎内磷吸收量重茬肥处理分别高于其他2个处理31.54%、17.58%;下部叶、上部叶重茬肥处理磷吸收量分别高于对照40.49%、74.76%;中部叶重茬肥处理分别高于对照和常规施肥处理31.14%、7.09%。综合分析认为,重茬肥对可显著提高烤烟各器官磷吸收量。

In order to study the regulation of phosphorus uptake in flue-cured tobacco, the test used four years cropping flue-cured tobacco field as materials and set three treatment of control, conventional fertilization,cropping fertilizers treatments. The results showed that the phosphorus uptake of cropping fertilizers treatment was higher than control and conventional fertilization treatments in harvest,the phosphorus accumulation increased 51.32% and 38.12% ,31.54% and 17.58%,40.49% and 38.31% ,31.14% and 7.09% ,74.76% and 65.53% in roots,stem,lower leaves,middle leaves and upper leaves of flue-cured tobacco respectively. The comprehensive analysis showed that the cropping fertilizers has the significant effect for improving phosphorus uptake in different organs of flue-cured tobacco.