Experimental reports on using "Penzhangjing" for Larix loptolepis

Experiments on spaying Penzhangjing on seedlings of Laris leptolepis was conducted for a year. Theheight growth and diameter at foot of experimental seedlings increased by 34.3% and 35.5%, respectively, compared with control seedlings. Variance analysis concludes that Penzhangjing have obvious effect on growth of height and diameter at foot of seedlings.