向日葵种子怎么种
买了向日葵种子,不知道种植方法,还有平时要注意的问题。
推荐回答(5个)
向日葵种子为大型瘦果,颗粒饱满。种子活动力强、抗逆性强、播种可用育苗块、普通泥炭、甚至普通园土,无需特殊育苗处理。播种时将向日葵种子尖头朝下垂直插入播种介质,覆土约1到2CM。出苗前保持介质湿润。一般3到7天出苗。种子发芽需遮光、适当覆土有助于帮助发芽时自行脱帽。
种子发芽出土后保持介质湿润,放到阳光明亮处管理。保持环境和介质湿润,可接受较强阳光照射,光照不足则会徒长。
如播苗过密可以间苗。用牙签、镊子等细物小心拨开介质,将需要取出的幼苗取出,移植到小钵中。这个期间如有损伤根系不会影响后期植物生长。
定植
幼苗生长出4至6片真叶后进行定植,盆具使用14CM直径(5号中盆),植料70%营养土+30%蛭石,30克腐化鸡粪作为基肥。用育苗块的可以直接整体埋入盆中。小钵假植的小心带土取出幼苗,带土植入新盆。浇透水。
定植后遮荫通风处静置一天,即可全日照管理。每天早晨浇透水,向日葵生长快,需水量大。叶子越多水份消耗越快。
肥水
苗期每周一次肥。植株顶端开始现蕾后,进入向日葵一生中生长最旺盛时期。晴天一天早晚2次透水,阴雨天早晨一次透水。5到7天一次肥。 浇水或下雨时避免顶端花蕾积水。
第一步:选种
准备好向日葵的种子,向日葵有不同的品种,如果要种在花盆里的话,可以用观赏的小棵的向日葵种子,种在大面积的花坛或者院子里的话,建议用食用的类型。
第二步:播种
播种时间建议在4月,气温大约在20摄氏度左右时进行播种,切记保证种子的新鲜程度,不要出现发霉的情况,将种子埋进土里,3天左右就可以发芽,5天左右就可以移植。
第三步:移植
等向日葵种子发芽挺出土面,张开子叶时就可以移植到大盆里。移植以后,要浇足定根水,一定要浇透。建议放在室内有阳光的地方,如果要放在太阳底下的话,就要经常浇水。
第四步:养护
等到长出大约3到4对真叶时,每隔几天就在叶子上喷洒一些磷酸二氢钾,促进植物的生长。向日葵在生长中要对其进行施肥,此时注意一定是腐熟后的有机肥。
多头向日葵种植时需要种一大片,而且要种得紧凑一些,这样它们自然就会长直,不管晴鱼天。但这也要在用优良肥料的基础上才行。另外,多头向日葵在结实前是可以直挺不下垂的,但在结实后由于花盘太重,自然会将“头”下垂。
只有掌握好它的习性,管理养护好即可养植出健壮的多头向日葵。
多头向日葵的生长温度以20-30℃之间最佳,也能耐受38℃的高温环境。喜湿润的土质,不耐涝,为须根系植物,根系分布较浅,不耐风吹,所以栽培地应当排水良好,且疏松肥沃为佳,如能含有大量的腐殖质则生长茂盛,根系发达不易倒伏。
生长期需要较多的肥料,最好在小苗期施用有机肥料,不仅能增加植株的抗逆性,还是绿色食品。在花盘未现前可注意偏重氮肥,之后要注重磷钾肥的施用量,这样多头向日葵才能生长粗壮、直立不倒伏。
栽培地最好选择能避开主风道的位置,避免小环境的风力过大耐吹倒植株,栽培时不要密度太大,株高为3米左右的株距以1.5米以上为宜,株高为2米以下的以1.0米左右即可。
到清明后播种,尖的向下插泥土里,播后盖细土,浇水,7-10天出苗。嘉兴市新塍奇花 园艺
盆栽向日葵,从种子到开花,加点料开花比脸还大!没想到这种花也能盆栽,播种1个月就能开花,还会结种子!
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