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我所为了繁育推广优良树种,1975年春季在粘壤土里试插水杉两亩,插苗6万枝,成活率85％左右,一般苗高2尺,茎粗小指大,大半当年出圃。扦插圃地先年深挖烤土,插前将土块碎细,四周深挖围沟,每隔5丈深挖排水主沟,沟深1.2—1.5尺,宽1.5—2尺。每隔4尺挖厢沟,深5—6寸、宽1尺,以利排灌畅通。土厢宽4尺,在厢面两旁的1.5尺处,铺上河砂一层,厚5—6寸,每亩约1,500担,然后将厢面普遍深挖一次,
In order to breed and popularize the fine tree species, in the spring of 1975, we planted 2 hectares of Metasequoia in clay loam soils and inserted 60,000 branches with a survival rate of about 85%. The average seedling height is 2 feet. Cuttings nursery early digging grilled soil, earthwork will be broken before plugging around the ditch dug deep, every 5 feet to dig deep drainage main ditch deep ditch 1.2-1.5 feet wide and 1.5-2 feet. Dug every 4 feet ditch, 5-6 inches deep, 1-foot wide, to facilitate irrigation and drainage. The soil trunk is 4 feet wide and 1.5 meters thick on both sides of the trunk. A layer of river sand 5-6 inches thick and about 1,500 tons per mu is excavated.