有些草花为什么要几次移苗才能长好

植物图片 2019-11-30 18:55

栽培草花通常成批育苗，用来美化环境或布置花坛，要求整齐漂亮。但常见到有些草花栽人花坛成活率不高或生长很瘦弱，达不到理想的美化效果。

草花

主要原因：是在育苗过程中，移植蹲苗措施不利。有些草本花卉，像凤仙花、翠菊、百日草、万寿菊等，易拔高倒伏，要想培育矮壮、整齐、抗旱、耐涝的花苗，在栽培时要经过几次移苗蹲棵。当播种苗长出2片真叶时，就应及时裸根分苗，株行距为10厘米。栽后浇水，2~3天后再浇1次缓苗水，而后当表土不黏时，要及时松土蹲苗。蹲苗时间看天气而定，通常1周左右，见苗在中午有萎蔫的现象时开始浇水，并结合施肥，施肥后幼苗明显生长，再浇1次水。当株行枝叶已相搭时，再次移苗分植。移苗时切去主根，促进侧根增生，切坨直径8~10厘米，栽后同样浇2次缓苗水，以后每浇1次水都要及时松土，浇水时并结合施肥。从播种到花坛定植，经过2~3次移苗的草花，生长茁壮，定植不倒蔫，整齐一致。家庭里养的草花栽植也不可过密，幼苗生长阶段也要有个蹲苗过程，并应经常松土、施肥，才能生长茁壮。扦插繁殖的一串红、菊花等，也要如法栽培才能养出理想的花苗来。

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