三色堇的种植方法
三色堇的种植方法,三色堇,又名蝴蝶花、猫儿脸、人面花等,属堇菜科二年生草本花卉,常做一年花卉栽培。喜凉爽气候,较耐寒,但不耐暑热,耐半阴,要求肥沃疏松且富含有机质的土壤。
(1)播种。土壤温度为18~24℃,播种温度过高,发芽不良。属嫌光性种子,应用粗质性石轻微覆盖。如果温度持续超过25℃就会使出芽率下降。在萌发期间对高盐分十分敏感,在萌发前保持基质潮湿,接近饱和。一旦幼苗出现,就应减少湿度,要让土壤稍干后再浇水,以促进更好地萌发与根系生长,约3~7天可发芽。
(2)定植。保持土温16~24℃,土壤干燥后再浇水,促进根系生长,抑制芽的生长,真叶出现后保持温度13~18℃。
(3)施肥。真叶期使用硝酸钾或硝酸钙施以50~75 ppm的氮。每浇2~3次水施肥1次(1克/升)或使用硝酸镁补充铁1~2次;温度为:夜间6~18℃,白天18~24℃,三色堇喜冷凉,且耐轻微霜冻。
(4)光照。在保持中等温度的同时,尽量保持强光照。
(5)水分。不要浇水过多,因为三色堇在冷凉地区生长,所以水分不会散失很快,且需较少水分。
(6)株高控制。一旦植株根系接触盆壁,在浇水之前允许萎蔫,从而对高度加以控制,也可用控肥的方式来控制高度,以上就是关于三色堇的种植方法的介绍。
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