Method for constructing eucalyptus dunnii and cunninghamia lanceolata mixed forest in Nanling mountainous region
A mixed forest and Chinese fir technology, applied in the field of mixed forest construction of eucalyptus and fir, can solve the problems of easy damage caused by non-cold-resistant varieties and few cold-resistant varieties, and achieve the effects of good mixed effect, short rotation period and strong cold resistance.
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[0028] A method for constructing a mixed forest of Dunn's Eucalyptus and Chinese fir in the Nanling Mountains, the main steps of which are as follows:
[0029] (1) Land selection and land preparation: In the winter of 2015, at the Xianshui Forest Farm in Quanzhou County, Guangxi, a plot with a deep soil layer and no water accumulation was selected as the planting area, weeds and trees in the planting area were removed, and the soil was plowed layer; dig holes on the vertical contour line in the planting area, the specifications are hole surface width 60cm * hole bottom width 40cm * hole depth 35cm, and put 1 kg of base fertilizer in each hole; the 1000 kg of base fertilizer includes: 116 kg of urea containing N46%, Contains P 2 o 5 20% calcium magnesium phosphate fertilizer 350kg, containing N10%, P 2 o 5 42% NH 4 h 2 PO 4 167kg, including K 2 O60% KCl83kg, B11% borax 10kg, Zn24% ZnSO 4 ·7H 2 O4kg, CuSO containing Cu25% 4 ·5H 2 06kg, tung bran 129kg containing 70% o...
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