发布时间:2025-01-21 13:01:29
可以,将龙骨花切段扦插,插穗长度应为20厘米至25厘米,在剪口处涂上多菌灵(也可用草木灰),然后晾干切口,插于微干的粗沙土中,一星期后插髓开始失水萎蔫,这时可浇少量的水,沙土宁干勿湿,以免剪口腐烂,待30天至40天,即可生根。
顶层模板施工图中quot梁未注明定位尺寸的沿轴线居中或一侧靠柱边布置是什么意思
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