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垂柳喜湿耐涝,城镇临河滂水,栽植颇多。但因顶端优势弱,加之每年换头,主干弯曲,高生长缓慢。为了加快垂柳的生长速度,从1985年起在济南郊区苗圃利用钻天柳和J172柳作砧木进行嫁接试验。试验圃地,原为蔬菜地及丰产农田,壤质土,肥沃,排灌条件好。育苗时施足基肥,每亩追施化肥2—3次,浇水6—8次。1986年嫁接成活120株,1987年嫁接2000株,全部成活,培育出的垂柳苗木,主干通直,冠如伞形,别有风韵。
Weeping Willows wet wet waterlogging, town Lin Shui water, planted a lot. However, because the top edge of the weak, combined with the annual replacement, trunk bending, high growth slow. In order to speed up the growth of weeping willows, from 1985 onwards in suburban nurseries in Jinan, the use of drilling days willow and J172 willow rootstock grafting experiments. Experimental nursery, formerly vegetable land and high yield farmland, loamy soil, fertile, irrigation and drainage conditions are good. Nursery Shizujifei, topdressing fertilizer 2-3 times per acre, watering 6-8 times. 1986 grafted survived 120, 1987 grafted 2000, all survived, weeping willow nursery stock, the trunk straight, crowned umbrella, do not have charm.