论文部分内容阅读
1981年我场引进肯尼亚1—3号、危地马拉、埃塞俄比亚、墨西哥六个不同产地的墨西哥柏种源。1982年—1983年用各种源苗木的枝条进行扦插试验。 一、扦插育苗 1.插床及插壤 ①不同季节扦插育苗的插床是用砖修成高80厘米,宽1米,长根据具体情况而定的插床。床内先铺50厘米厚的卵石,上面再铺30厘米厚的插壤。(50%的松林土混合50%的黄泡沙)使透水透气良好。PH值6.1,湿度40—44%。
In 1981, I introduced the cypress source from six different producing areas of Kenya 1-3, Guatemala, Ethiopia and Mexico. 1982 - 1983 with a variety of seedlings branches cutting test. First, the cutting seedlings 1. Sowing and insertion ① cuttings of different seasons cutting seedlings is brick repair into a height of 80 cm, 1 m wide, long according to the specific circumstances of the slot. The first shop in the bed 50 cm thick pebbles, and then spread 30 cm thick plug in the soil. (50% pinewood soil mixed with 50% yellow sand) make permeable and well ventilated. PH value 6.1, humidity 40-44%.