花卉也要适时修剪

来源 :上海农业科技 | 被引量 : 0次 | 上传用户:jiangwei521521
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
栽种花卉,需根据花卉生长和季节,进行不同程度的适时修剪。生长期的修剪主要是调节营养,多在花后进行,修剪不宜过强,常以摘心、抹芽、剪除徒长枝、疏花疏果为主。休眠期修剪多用于灌木花卉和宿根花卉的栽培上。对于早春开花的,要在花后两周内进行修剪,过迟则影响明春开花。夏秋季开花的,可在冬季或早春进行修剪,它们的花芽在上年的夏秋季均可形成,到早春先开花后长叶, Planting flowers, according to flower growth and season, to varying degrees of timely pruning. Pruning growing season is mainly to regulate nutrition, mostly after anthesis, pruning should not be too strong, often topping, wiping buds, cut off the growth of branches, thinning thinning dominated. Dormant pruning and more for bush flowers and perennial flowers cultivation. For the flowering in early spring, pruning should be conducted within two weeks after flowering, which will affect the flowering of spring next year. Blooming in summer and autumn, can be trimmed in winter or early spring, their flower buds can be formed in the summer and fall of the previous year, to the early spring after the first flowering of long leaves,
其他文献
今年我们家也有了汽车,我看到爸爸每次开车前都系上安全带,就好奇的问:“爸爸,你拉上这个‘书包带儿’干什么?”爸爸笑着说:“宝贝,这可不是书包带儿,这叫安全带。是保障驾驶
1998年,中国人民保险公司云南省分公司在总公司和省委、省政府以及人民银行的正确领导下,全系统各级公司,坚持从云南实际出发,按照“稳中求进,实现可持续发展”的总体要求,
会议
苹果果实色泽是果实品质的重要标志之一。辽宁省南部极晚熟苹果着色晚,果实着色最佳时期是该地区早霜的临界期,因此迅速提高极晚熟苹果色泽是亟待解决的问题。几年来,我们对
这是德国一家公司用一种种稀有矾土研制的花卉培养基,只要把植物同连根土一起置于培养基,植物便可从中吸收水分, This is a German company with a rare bauxite developed
期刊
  Histidine-rich protein 2(HRP 2) is the major protein released into the blood of an infected person by plasmodium falciparum,the parasite that causes the mos
会议
  Ribavirin in combination with interferon(IFN)-α is the approved treatment for hepatitis C virus (HCV) infection.Interference of ribavirin with signaling ev
会议
会议
二、振荡电路原理振荡电路由开关调整管V501、开关变压器T503、C512、R506~R510、R515等元器件组成。振荡电路简化电路如图4所示。 Second, the principle of oscillation c
  In recent year,Enterovirus 71 (EV71)-associated hand foot and mouth disease(HFMD) has become an important public health issue in China.EV71 has been classif
会议