发布时间:2025-02-05 12:09:23
1、繁殖方法
紫薇在3-4月播种,播种在室外露地,将种子均匀撒人已平整好的苗床。每隔3-4cm撒2-3粒左右。播种后覆盖约2cm厚的细土,约10~14天后种子大部分发芽出土,出土后要保证土壤的湿润度;
2、管理要求
在幼苗长出2对真叶后,为保证幼苗有足够的生长空间和营养面积,可选择雨后对圃地进行间苗处理,使苗间空气流通、日照充足。生长期要加强管理,6~7月追施薄肥2-3次,夏天防止干旱,要常浇水
由发光二极管组成的led节能灯应该怎么改造才能使其的灯珠没有这么容易烧掉
2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23卫生间没有下沉怎么装蹲坑卫生间无下沉怎么处理装修 洗手间厕所没有下
2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23酒店改造新装修所有的上下水新做电路新做40间客房以及公共面积建筑面积1750平方人工费
2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23 2025-02-05 12:09:23