Soil culture experiment on the growth of Albizia falcata seedlings
1995
Shu Wei (South China Agricultural Univ., Guangzhou (China). Electronic Microscope Laboratory of the Central Laboratory)
Soil culture experiment on the effects of soil texture, water supply and tubercle-bacteria inoculation on Albizia falcata seedlings was conducted and the activity of nitrogen-fixing enzyme was measured. Results showed: 1. Medium loam and sandy loam were favorable to seedling growth and tubercle formation while hard and clayey soil with sand content of less than 16.6 inhibited growth; 2. There was a great difference in the results of tubercle-bacteria inoculation among different soil textures, the best being medium loam and sandy loam; 3. Measurement suggested that the long period of low temperature and rainy humidity might have caused the low activity of nitrogen-fixing enzyme in the tubercles. For definite conclusion, further study is needed
显示更多 [+] 显示较少 [-]