毛红椿播种育苗技术及苗期生长规律研究

Seeding and Seedling Cultivation Technique and Growth Rhythm during Seedling Period of Toona ciliata var. pubescens

于2005-2006年对毛红椿的播种育苗技术和苗期生长规律进行观测研究,结果表明,毛红椿于3月下旬播种,4月上旬出苗,7月下旬至9月中旬苗木高生长最快,9月中旬以后进入缓慢生长,至10月底苗木停止生长,其高生长量可达100 cm以上,最高可达150 cm;21、27、33、45株/m2 4种留苗密度实验表明,苗木地径生长与留苗密度密切相关,留苗越密则地径越小、高度越小,留苗越稀则地径越大、高度越小。生产上建议播种量为15 kg/hm2,留苗密度以30~33株/m2为宜。

Observation and study was carded out of two years in succession on seeding and seedling cultivation technique and growth rhythm during seedling period of Toona ciliata var. pubescens. Rational seed quantity, seedling density and target of seedling quality were offered.