嫁接换根是日光温室黄瓜栽培中一个增效增产措施,应在生产中积极推广应用。 1 嫁接工具 常用的有单面刮胡子刀片,嫁接专用塑料夹、竹签,育苗盘、营养钵,地膜条、方桌与凳子等。 2 嫁接时间 采用靠接法时,一般在黄瓜播种后12～14天,砧木播种后8～10天,苗高7～8cm时进行。此时砧木(黑籽南瓜)第1片真叶像黄豆粒大小,接穗(黄瓜)子叶平展,第1片真叶像米粒大小,此时嫁接最为适宜。 3 嫁接方法 黄瓜嫁接有靠接、插接、劈接等多种方法,生产上采用靠按法较多。靠接法嫁接,可在日光温室内的方桌上进行,温室内温度宜保持在15～25℃,嫁接前 人先对瓜苗喷一次杀菌剂。嫁按时把两种苗用竹签从苗床中起出置于育苗盘内,起苗时既要少伤根又要少带土,以防嫁按时污染刀口。具体 Grafting for roots is a greenhouse cucumber cultivation efficiency measures to increase production, should actively promote the use of production. 1 grafting tools commonly used single-sided shave blade, grafting special plastic clip, bamboo sticks, nursery tray, nutrition bowls, mulching strips, square tables and stools. 2 grafting time by the docking method, the general in the cucumber sowing 12 to 14 days after sowing 8 to 10 days, seedling height 7 ~ 8cm when. At this point rootstock (black pumpkin) the first true leaves like soybean size, scion (cucumber) cotyledons, the first true leaves like rice size, then the most appropriate grafting. 3 Grafting methods Cucumber grafting a docking, plug, split and other methods, the production by the law by more. By docking law grafting, can be carried out in the solar greenhouse side of the table, the temperature inside the greenhouse should be maintained at 15 ~ 25 ℃, before grafting melon spray a fungicide. Marrying two seedlings with bamboo shoots from the seedling set out in the nursery tray, starting seedling less injured roots but also with less soil, in order to prevent the timing of pollution, contaminated knife edge. specific