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1978年春我局开展塑料大棚容器育苗试验,培育的文冠果苗生长良好,播后44天平均高16厘米,地径2.5毫米,已可移植。大棚为永久性拱型钢架,长65米,宽14米,面积910平方米。用4×4×12厘米无底塑料袋。营养土配制用70%轻沙壤土加30%厩肥,以0.5%硫酸铜溶液进行消毒。选用种仁饱满的成熟种子,用53℃水搅拌浸泡24小时,再用0.5%硫酸铜溶液浸种6小时,取出放木箱内按1:3混沙催芽。处理时间从3月27日开始,按发芽顺序分批点播。据观
In the spring of 1978, our bureau carried out the experiment of plastic seedling raising in plastic greenhouse. The cultivated seedlings of Xanthocera sorbifolia grew well. After 44 days of broadcast, the average height was 16 cm and the diameter of ground was 2.5 mm. Greenhouses for the permanent arched steel frame, 65 meters long, 14 meters wide, an area of 910 square meters. With 4 × 4 × 12 cm bottomless plastic bags. Nutrient soil preparation 70% light sandy loam plus 30% manure, with 0.5% copper sulfate solution for disinfection. Seeds full of mature seeds, with 53 ℃ water soak for 24 hours, then 0.5% copper sulfate solution soaking 6 hours, remove the wooden box by 1: 3 sand sprouting. Processing time from March 27 onwards, according to the order of germination on-demand. According to the concept