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                                  桂花树苗木的扦插繁殖方法

                                  桂花树苗木的扦插繁殖方法 
                                  (发布日期2015-9-25 10:25:43)
                                    浏览人数9669

                                  点此滚屏鼠标双击自动滚屏 

                                      扦插要选择适宜的时间桂花春梢4月底停止发展到6月底已经成为半老不嫩的壮枝这种壮枝生命力最强用以扦插比较容易成活桂花生长的最适温度是25桪28超过30就生长缓慢因此长江下游地区以6月下半年左右扦插较好秋季也可进行但成活率?#31995;停?#23545;新苗生长还得特别注意防寒

                                  扦插最好于露地进行苗床选沙质壤土不宜用粘质土壤要提前就进行冬耕翻土到春天精细整地作畦高20厘米成龟背形盖草保护以免雨打板结最好在畦中安放一只大水缸要在浇水前一日储水以免水温与土温相差过大一般采用踵插法?#34180;?#36405;插插枝是剪取下端带一点老枝皮肉的新枝状如踵踵状处组织紧密养分多容易发生新根插枝长约10厘米顶端留上部?#27426;?#21494;下面的叶全剪去所留的?#27426;?#21494;不能破损也不剪小插穗插入?#26519;?8厘米用?#31181;?#23558;周围泥土压实株行距12 3厘米

                                  插好以后须精心地管理要浇透水在浇水前能在土面铺上一层碎草最好以免泥泞沾污叫叶片并可防止土壤板结紧接着用芦帘遮荫否则不利成活常用高低双层荫棚既无阳光直射又可透气通风浇水不宜过多以防防止烂根干旱高?#32511;?#27668;要叶面喷水每日二三次一般插后1个?#24405;?#29983;出根瘤2个月后?#26786;?#24320;始早?#21487;?小时太阳而后遮帘此后逐渐加长阳光照射时间到10月就可不盖低荫棚使苗木从高荫棚全日得到半散射光11月底改高棚为暖棚以防寒苗上还须盖一层薄薄的稻草冬?#23601;?#22756;见?#36164;比?#19968;次水于中午进行第二年天暖后晴天仍须遮荫适当地在浇水中加一成腐熟液肥第二年年底苗高可达1尺第三年春移栽

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