思南县在育杉木苗过程中,采用石灰水进行种子催芽,收到良好效果。具体作法是: 石灰水(石灰:水=1:100)浸种24小时,除去瘪粒、杂质,在向阳、排水良好的6～15度的缓坡地上,挖长方形泥坑一个,宽2.7米,深2.5米,长3.7米(根据种子数量而定),坑底呈7～10度倾角,并在坑底两旁挖5厘米深的小排水沟。泥坑挖好后,坑底用稻草、芒萁之类作底垫,放竹蓆两床,然后将浸好的种子摊在上面,约30～40厘米厚,每隔3～4小时用27 Sinan County fir seedlings in the process of using lime water seed germination, received good results. The specific practice is: lime water (lime: water = 1: 100) soaked for 24 hours to remove the shrapnel, impurities in the sunny, well drained 6 to 15 degrees gentle slope digging a rectangular pit, 2.7 meters wide and 2.5 deep M, 3.7 meters long (depending on the number of seeds), the bottom of the pit was 7 ~ 10 degrees dip, and dug 5 cm deep drainage ditches on both sides of the pit bottom. After digging the mud pit, the bottom of the pit with straw, mango and the like for the bottom cushion, put bamboo mat two beds, and then spread the seeds spread on it, about 30 to 40 cm thick, every 3 to 4 hours with 27