摘要
为探索优质烟生产适宜的施 N水平和打顶时间 ,于 2 0 0 1年进行了上部烟叶质量调控措施的试验。结果表明 ,施纯 N8kg/6 6 7m2 ,有利于烟叶产量增加 ,产量为 114 .5 7kg/6 6 7m2 ;结合 5 0 %烟株中心花开时打顶 ,有利于产值提高 ,产值为 881.12元 /6 6 7m2 ,烟叶总体外观质量改善 ;但以 6 6 7m2施纯 N6 .5 kg、5 0 %中心花开时打顶 ,有利于降低上部叶比例和提高上部叶质量。
In 2001, an experiment on cultivation measures to improve the quality of upper tobacco leaf was carried out in Changshun county with an aim to explore the suitable nitrogen application norm and the time of top pruning. The result showed that the higher yield of tobacco leaf reached at 1178.55 kg/ha at the nitrogen application level of 120 kg/ha, and top pruning at the time of 50% of tobacco plants blossom ; the output value of tobacco leaf reachedat to 13216.8 yuan/ha and improved the appearance quality of tobacco leaf. But it was more advantageous to reduce the proportion of upper leaf and improve its quality at the nitrogen application level of 97.5 kg/ha and top pruning at 50% of tobacco plants blossom.
出处
《贵州农业科学》
CAS
2002年第4期22-24,共3页
Guizhou Agricultural Sciences
关键词
烟叶质量
调控措施
烤烟
上部叶
打顶时间
flue cured tobacco
upper tobacco leaf
nitrogen application norm
top pruning time
quality
