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我们在培育泡桐高干壮苗中,为了延长苗木生长时间,提早进入速生期,今年曾采用了塑料薄膜大棚育苗,收到了很好的效果。其做法是:一、育苗方法用竹杆搭一拱型上盖塑料薄膜,下用回龙灶建床,长17米,宽5米,高1.5米,用20%的马粪,15%炉渣,0.5%钙镁磷及沙圵土配成肥土。混合掺匀过筛后装入小塑料袋内,袋高30厘米,直径25厘米,无底。每袋育一根,根长17厘米,粗2—3厘米,上盖一厘米厚的土,使肥土含水量20%,并用1/800的甲基托布津进行土圵消毒,防止根腐烂。
We cultivate Paulownia tall stem strong seedlings, in order to extend the seedling growth time, early into the fast-growing period, this year has used plastic film greenhouse nursery, received good results. The practice is: First, the nursery method Take an arched plastic cover bamboo pole, with the next built Longchang back bed, 17 meters long, 5 meters wide, 1.5 meters high, with 20% horse manure, 15% slag , 0.5% Calcium Magnesium Phosphate and sandy loam soil into fat soil. Mix well and sieve into a small plastic bag, the bag 30 cm high, 25 cm in diameter, bottomless. A bag of a root, root length of 17 cm, 2-3 cm thick, covered with a centimeter thick soil, so that soil water content of 20%, and 1/800 thiophanate-methyl Tuen disinfection to prevent root rot .