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1993年,我采用地膜棚膜双覆盖的方法,搞了0.05亩快速育苗试验(即当年播种、当年嫁接、当年出圃),取得了成功,到秋末,70%成品苗达到一级苗标准,20%达到二级苗标准。现将快速育苗的主要作法介绍如下: 一、播种盖膜 1、种核处理。将冬季沙藏55天的种核于2月20日开始解冻,缓慢升温催芽,在12℃的室温下5天开始破口,12天破口率为5%。14℃室温下放置7天后,破口率达50%。此时秋耕地已解冻近20厘米,正可顶凌春播。 2、整地播种。将秋耕地施足基肥(加施少量磷肥),整平磨细,做成70厘米宽的床面,床间距30厘
In 1993, I used the method of double cover with plastic film and film and successfully conducted the experiment of rapid seedling of 0.05 mu (that is, the year of planting, the year of grafting, then the year of nursery) and achieved success. By the end of autumn, 70% of the finished seedlings reached the standard of primary seedling and 20 % Reached the secondary seedling standard. Now the main practice of rapid nursery introduction is as follows: First, sowing cover membrane 1, seed treatment. The winter kernels 55 days of seed storage began to thaw on February 20, slow warming germination, 12 days at room temperature 5 days began to break, 12 days break rate of 5%. After 14 days at room temperature for 7 days, the breaking rate reached 50%. At this point autumn has been thawed about 20 cm, can be top Lingling broadcast. 2, planting site. The autumn arable land Shizujifei (plus a small amount of phosphate fertilizer), leveling ground, made of 70 cm wide bed, bed spacing 30%