Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2007, Vol. 23 ›› Issue (1): 288-288.

Special Issue: 烟草种植与生产

• 目次 • Previous Articles     Next Articles

Effects of Humic Acid (HA) on Tobacco Growth and Yield and Quality

Wang Shu hui, Zhang Hong yan   

  • Online:2007-01-05 Published:2007-01-05

Abstract: The field experiment was conducted in Yuliang County Kunming city in 2005. The results showed that HA promoted both the growth and yield of tobacco. The great yield was obtained at the 8g/plant HA rate, then followed by 12g/plant and the last one was 16g/plant. The leaf value and the ratio of up-middle grade was also increased and the order was 12g/plant >16g/plant >8g/plant >4g/CK. The 12g/plant HA rate got the good yield and value, but the content of sugar and starch was high in the leaf that was not good for the quality. The yield for the 16g/plant HA treatment was not increased any more whilst it decreased the leaf quality. For all aspects 8g/plant HA was recommended in the field. In summary, HA improved the tobacco growth and yield, but it not suggested that more HA means better.

CLC Number: