这是百日草苗么，怎么长这么慢？_百度知道
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再就是苗有点细脚儿，就是水分多的表现，尽量少水，使苗健壮，浇水要掌握不干不浇原则，你看盆土有点湿看来是水多了，特别是苗期
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过频不利根系生长，浇水过多。小苗自然也长得慢不要浇太多的水，小苗要把根系发育好植株长得才快
浇点水就好了，这是什么原因？ 百日草,菊科，百日草属，一年生草本，性发芽适温为22-25℃，播种时应稍加覆土，并置于避光处，待长出真叶后要
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百日草刚发芽不久，可是叶子看起来有点黄了，该怎么办？
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苗刚出土，即可使植株叶色青翠、小苗期适当适用氮肥和钾肥，小苗也会瘦弱发黄，光合作用刚进行，待一段时间根系长大吸收增加。所以发芽后的百日草小苗叶色发黄；播种基质营养不足。2、逐步慢慢接受光照，百日草属喜光花卉。解决方法：1，又能增加枝干的强韧度，光合作用加强，枝叶就会变成浓绿色，嫩苗内叶绿素缺少
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