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1975年6月30日与7月2日,我们夏插池杉2938株,采用塑料薄膜复盖管理方法,于9月7日调查,成活了2770株,成活率达94％,其中有25％苗高26厘米,插后生长量为17厘米,发根数9条左右,并有许多二次根发生。有25％苗高18厘米,插后生长量为9厘米,发根数3—5条,有二次根发生。有50％苗高14厘米,插后生长量为5厘米,发根数三条左右,无二次根发生。现将我们初步摸索的情况介绍如下: 一、圃地的选择和床面整理 圃地的选择、苗床的整理与水杉嫩枝扦插相同。未扦插前,在整好的床面上搭好荫棚架,架高3尺,以便于操作管理,四周设置简易防风障,然后在扦插的床面上海隔100厘米用紫穗槐条搭成半园环,环与环之间用三根紫穗槐条固定,以便插后立即复盖塑料薄膜。
On June 30, 1975 and July 2, 1975, we planted 2938 summer plum trees, using plastic film cover management method, on September 7 investigation, survived 2,770 strains, the survival rate of 94%, of which 25% Height 26 cm, growth after insertion of 17 cm, hair root number 9 or so, and there are many secondary roots. 25% of the height of 18 cm, the amount of growth after insertion 9 cm, hair root number 3-5, secondary root. 50% of the height of 14 cm, the amount of growth after insertion of 5 cm, hair root number of about three, no secondary root. Now we initial exploration of the situation are as follows: First, the choice of garden and bed finishing choice of nursery beds finishing and Metasequoia twig the same cuttings. Before cutting, take a good shade of scaffolding on a good bed, 3 feet high, in order to facilitate the operation and management, around the set simple windbreak, and then in the cuttings of the bed every 100 cm with Amorpha frithed Half Park ring, ring and ring with three Amorpha fritillary fixed, in order to immediately after the cover plastic film.