红枫怎么扦插

2025-03-24 03:05:14
推荐回答(4个)
回答1:

1.扦插的枝条最好在多年生的植株上截取,截取的枝条长度在20cm左右最佳,截取枝条后想要进行消毒处理。要想让红枫早点生根,扦插前可以将枝条放在生根水中浸泡一段时间,浸泡之后最好将枝条放在阴凉通风处晾干。

2.红枫适宜在疏松、肥沃、透气性好的土壤中生长,扦插的土壤可以将蛭石或珍珠岩混合一半的塘泥种植,也可以将腐叶土、园土、砂土混合配制。配土完成后要给土壤浇一次水,这次浇水要浇透,但尽量不要留积水。

3.最后直接将枝条插进土壤即可,插好枝条后需要将枝条周围的土壤压实,扦插完成后最好将枝条放置在室内半阴、通风的环境中养护。养护期间需要保持土壤湿润,通常养护得当时,枝条一个月左右就会生根发芽。

回答2:

  (1)扦插时期
  1)春季扦插春插是利用前一年生休眠枝直接扦插或经冬季低温贮藏后进行扦插。其枝条内的生根抑制物质已经转化,营养物质丰富,只要条件适宜.扦插容易成活。春季扦插宜早,并要创造条件,首先打破枝条下部的休眠,保持上部休眠.待不定根形成后芽再萌发生长。所以该季节扦插育苗的技术关键是采取措施提高地温。春季扦插生产上采用的方法有太田露地扦插和塑料小棚保护地扦插。
  2)夏季扦插夏插是利用当年旺盛生长的嫩枝或半本质化枝条进行扦插。夏插枝条处于旺盛生长期,细胞分生能力强,代谢作用旺盛,枝条内源生长素含量高,这些因素都有利于生根。但夏季由于气温高.枝条幼嫩,易引起枝条蒸腾失水而枯死。所以,夏插育苗的拄术关键是提高空气的相对湿度,减少插穗叶面蒸腾强度+提高离体枝叶的存活率,进而提高生根成活率。夏季扦插采用的方法有阴棚下塑料小棚扦插和全光照自动间歇喷雾扦插。
  3)秋季扦插秋插是利用发育充实漕养物质丰富、生长已停止但未进入休眠期的枝条进行扦插。其枝条内抑制物质含量末达到最高.可促进愈伤组织提早形成,有利于生根。秋插宜早,以利物质转化完全,安全越冬。所以该季节扦插育苗的技术关键是采取措施提高地温。秋季扦插采用的方法常用塑料小棚保护地扦插育苗,北方还可采用阳畦扦插育苗。
  (2)插条的选择及剪截插条因采取的时期不同而分成休眠期与生长期两种,前者为硬枝插条,后者为软(嫩)枝插条。
  1)硬枝插条的选择及剪截
  a插条的剪取时间插条中贮藏的养分,是硬枝扦插生根发技的主要能量来源,所以应选择枝条含蓄养分最多的时期进行剪取。落叶树种在秋季落叶后或开始落叶时至翌春发芽前剪取。
  b插条的选择应选用优良幼龄母树上发育充实、已充分木质化的一年生或二年生枝条或萌生条}选择健壮、无病虫害且粗壮含营养物质多的枝条。
  c枝条的贮藏选择高燥、排水良好衔又背风向阳的地方挖沟,沟深一般为50~60厘米(深度须在冻土层以下),将枝条每50~100根捆成捆,立于沟底,用湿沙埋好。中间竖立草把,以利通气。每月应检在1~2次保持适合的温湿度条件,保证安全过冬。枝条经过埋藏后皮部软化,内部贮藏物质开始转化.给春季插条生根打下良好基础。室内贮藏也是将枝条埋于湿沙中,要注意室内的通气透风和保持适当温度,堆积层数以2~3层为宜。若穗条少。需要贮藏,可敢于冰箱贮藏室中。还可结合整形修剪时切除的枝条选优贮藏待用。
  d插条的剪截一般长穗插条15~20厘米长,保证插穗上有2~3个发育充实的芽。剪切时上切口距顶芽1厘米左右,下切口的位置依植物种类而异,一般在节附近薄壁细胞多、细胞分裂快、营养丰富、易于形成愈伤组织和生根,故插穗下切口宜紧靠节下。
  2)嫩枝插条的选择及剪截嫩枝扦插是利用绿枝随采随插。插条最好进自生长健壮的幼年母树,并已开始术质化的嫩枝为最好,内含充分的营养物质,生活力强,容易愈合生根。嫩枝采条,应在清晨日出以前或在阴雨天。枝条采回后.在阴凉背风处进行剪截。一般插条长l0~15厘米,带2~3个芽,插条上保留叶片的数量可根据植物类与扦插方法而定。下切口剪成平口或稍斜,以减少切口腐烂。

回答3:

6~7月,选取长15~20厘米的当年生枝条,速蘸1000毫克/升的萘乙酸粉剂或速浸1000毫克/升吲哚丁酸50秒钟,插入蛭石与河沙基质中,插后喷雾保湿,如用全光喷雾法,1个月即可生根,成活率亦高。插后2个月,幼苗已成活,可行移栽,移后进行遮荫缓苗,半月后,逐步接受阳光,有利成活。

回答4:

红枫扦插生根很难的。没有全死已属不错了。
剪取插穗前环割,遮光处理可能会提高成活率,但作用有限。
实际生产都是用嫁接的。

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