发布时间:2025-01-21 12:46:22
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。
plc控制气缸升降气缸上面的每个磁性开关有两根线有正负极之分分别接到哪里
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