对杉木无性系采穗圃常规建圃技术中存在的穗条产量低和偏冠苗比率高的问题进行了探索。提出的密植平茬建圃技术成倍地提高了采穗圃的穗条产量 ,并明显地改善了穗条质量。用该法生产的穗条培育的苗木 ,正冠率高达 93% ,比常规技术提高 2 3% ,形成了一个经济有效的杉木无性系采穗圃生产繁殖系统 This paper explored the problems of low yield of spikelets and high ratio of partial crown seedlings in the conventional cultivation of Chinese fir clones. The proposed planting techniques of dense stubble and stubble increase the spike yield of the spike garden multiply, and obviously improve the quality of the spike. Seedlings grown with this method produced seedlings with a positive rooting rate of 93%, an increase of 23% over the conventional technique, resulting in a cost-effective production and reproduction system for a Chinese fir clone cloning plant