摘要
酸性土壤施适量石灰，有利于改善烟株根系生长的环境条件，促进烟株生长，增强烟株的抗病力，提高烟叶叶绿素含量和光合速率，有利于烟叶干物质积累，提高烟叶产质量．在土壤pH值为5．2的土壤中，大田每公顷施石灰750kg最适宜，上中等烟比例提高12．1个百分点，均价比对照提高0．77元·kg－1，每公顷产值增加2498．55元．
By appropriate lime application, the soil condition for the growth of roots system would be improved; the disease resistance of the tobacco plant could be strengthed; the chlorophyll content.photosynthesis rate of leaves and yield of tobacco leaves was able to be increased, and the quality of tobacco leaves also could be improved. In the test, if 750 kg lime per hectare was applied in the soil with a pH value of 5.2, compared with CK treatment, the proportion of high quality tobacco leaves could increase by 12. 1 percent, the average price would increase by RMB 0.77 yuan·kg-1, the production value of each hectare would increase by RMB 2498.55 yuan.
出处
《福建农业大学学报》
CSCD
1999年第1期71-76,共6页
Journal of Fujian Agricultural University
关键词
烤烟
土壤酸度
生长特性
品质
tobacco
soil acidity
growth characters
quality
