白城山新1号杨育苗密度研究

Study on Seedling Density of Populus davidiana×P.bolleana‘baichengshanxinyang No.1’

通过对1~5年生白城山新1号杨不同育苗密度对比试验数据进行统计分析,确定培育该品种城乡绿化商品苗木初植密度为8000株·hm^(-2)(株行距0.7 m×1.8 m),第5年春天采用“隔二拿一”的方式疏苗,定植密度为5300株·hm^(-2),5年生苗木平均胸径可达8.00 cm。

The contrast test data of 1-5 years old Populus davidiana×P.bolleana‘baichengshanxinyang No.1’with different seedling densities were statistically analyzed.The initial planting density of the urban and rural green commercial seedlings of the variety was determined to be 8000 plants per hm 2(distance between plants of 0.7 m×1.8 m).The young plants were thinned out with keeping two plants and pricking off one plant in the spring of the fifth year.The seedling density was 5300 plants per hm^(2),the average DBH of 5 years old seedlings could reach 8.00 cm.