绿萝叶子越长越小还发黄，再不管就死了

植物图片 2020-07-16 20:57

绿萝是生命力很强的一种植物，只要不是极度缺水，扔那一头半个月不动它也能长得好好的。因此绿萝也是懒人的首选花卉。但最近听到有花友反映，家里的绿萝叶子发黄且越变越小，怎么回事？下面一起来分析下。

绿萝叶子越长越小还发黄

绿萝叶子越长越小还发黄怎么办

绿萝是攀附性植物，当长满了盆栽就会往下衍生枝条，往下生长的枝叶越长叶子就越小。这是绿萝的特性，其原理是，延伸出去的枝条越长运输养分的距离就越远，当达到最远端的时候养分已经所剩无几了。想要解决这种情况我们可以冲依稀几个方面入手。

1、有足够大的茎秆，要向上生长

想要绿萝变得粗枝大叶，必先养其茎，只有茎秆足够粗才能提供足够的养分给叶子。但通常已经长大的绿萝其茎秆以后也不会再长粗。所以我们要从幼苗开始培养，而且要一直向上生长，才可以越来越大，不能垂下来。

待绿萝接近成熟期，我们可以给它换一个大点的花盆，并在盆的中间竖一根粗的塑料管或木棒之类的东西，在其周围绑上棕皮、毛毯、棉花等可吸水的物品，刚开始可引导绿萝往上攀爬，等过一段时间它就自然而然的向上生长了。

2、提供充分的养分

绿萝喜肥，如果缺少肥料就会造成植株生长缓慢，营养物质无法供应生长，叶子也就越来越小了。

绿萝施肥以氮肥为主，钾肥为辅。春天绿萝生长旺盛期之前，要每隔10天施一次0.3％的尿素溶液，而且可以用0.5‰-1‰的尿素溶液作为叶面肥，喷洒在绿萝叶子上。

秋冬天节植物生长缓慢，主要以液态的无机肥为主，大概15天使用一次，冬天之后主要以叶面喷施为主，通过绿萝的气孔施肥，使用专门的叶面肥。

3、光照不足

基本上只要是绿色植物，都需要阳光。绿萝自然也不例外，如果长时间得不到光照，不单只会让绿萝长得羸弱，而且叶子也会发黄变小，究其原因是缺少光照。会造成一下结果：其一，叶子不再产生叶绿素，叶子就会发黄，也无法产生足够的养分，这样叶子就会变小。其二，会造成植株为了适应环境，节省消耗，不用大的叶子来接收阳光，叶子变得很小。

绿萝叶子越长越小还发黄

绿萝养护小技巧

1、光照

大家都认为绿萝是喜阴的植物，部分花友甚至不给绿萝见太阳，害怕绿萝被晒伤。其实这种做法是错误的，通常来说只要是植物，对太阳都不会抗拒，只要不是夏天正午的太阳就不用担心会被灼伤。绿萝也是植物，建议有条件还是要让其见见太阳放到有散射光的地方养护。

2、浇水

绿萝喜高温湿润环境，缺水会造成叶子变黄、枯槁、掉落等。但再喜水也不能乱浇水，切忌三天打鱼两天晒网。

那么怎么浇水呢？ 其实判断土壤湿度有个小方法，准备一个牙签，然后直接插进土中，大致4厘米左右即可，然后没事拔出来看看，如果牙签上的土比较潮湿就不用浇水，反之就需要浇水了。

3、空气湿度

绿萝喜欢比较湿润的养护环境，除了花土湿润之外，周围空气环境也应保持一定湿度，在生长期花土要保持湿润外，夏天炎热还要往叶子和周围环境上喷水降温加湿。值得注意的是盆中不要产生积水，否则容易烂根、枯叶，冬天要控制浇水量即可。

4、啤酒也可以给它加餐

啤酒是可以用来给绿萝当肥料的，不过不能直接用，要加清水稀释后再使用，如果是喷洒叶子，啤酒和清水按1比10比例混合后使用；如果是浇水，混合比例是1比50，这样能让绿萝叶子绿油油的，非常好看。

专题： 绿萝
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