Studies on application technique of rare earth in the young forest stand of black locust
1989
Wei Gang (Beijing Forestry Univ. (China). Experimental Center for Forest Biology)
Spraying rare earth solution of 0.02% concentration can promote growth of the black locust. Average height growth was increased by 16-22%. The basal diameter growth was increased by over 28%. In 3-7 days, chlorophyll content increased by more than 11%. With the advantage of low cost and obvious effects, it can be used in large scale extension
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