华山松“双月苗”,从四月中、下旬在苗圃地进行播种、六月份进入雨季时出圃栽植。因苗木在圃时间为40——60天。故称“双月苗”。用华山松“双月苗”造林,效果好、成本低、育苗技术也比较简便,是玉溪地区大力推广的造林新方法。现将培育华山松“双月苗”的具体方法简述如下:一、苗圃地的选择。因华山松幼苗喜凉爽、湿润的气候,故育苗地应选择在土层深厚、靠近水源的半阴坡。为了防止幼苗患猝倒病,必须开生荒地 Huashan pine “bimonthly seedlings”, from mid to late April in the nursery to sow in June into the rainy season when nursery planted. Due to seedlings nursery time is 40 - 60 days. It is called “bimonthly seedlings.” With the “bimonthly seedlings” of Pinus armandii afforestation, the effect is good, the cost is low, and the seedling raising technology is also relatively simple. It is a new afforestation method widely promoted in Yuxi area. Now to cultivate Huashan song “bimonthly seedlings,” the specific method is as follows: First, the choice of nursery. Due to the Pinus tabulaeformis seedlings hi cool, humid climate, it should choose seedling nursery deep in the soil, near the half-shady slope of the water. In order to prevent seedling from cataplexy, we must give birth to wasteland