花木扦插促根法

来源 :花卉 | 被引量 : 0次 | 上传用户:hangarfield
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
1、剪花后枝扦插 花后枝内养分含量较高,而且粗壮饱满,扦插成活后发根快,易成活。剪取枝条以早上为好。早上的花木枝条含水量充足,扦插后伤口易愈合,易生根,成活率高。
其他文献
The control of gas fractionation unit(GFU) in petroleum industry is very difficult due to multivariable characteristics and a large time delay.PID controllers a
期刊
期刊
As the central component of rotating machine,the performance reliability assessment and remaining useful lifetime prediction of bearing are of crucial importanc
期刊
With the development of high-speed and heavy-haul railway in China, problems like insufficient thickness of ballast bed and overlarge track stiffness are obviou
Nondominated sorting genetic algorithm Ⅱ(NSGA-Ⅱ) is well known for engine optimization problem. Artificial neural networks(ANNs) followed by multi-objective o
答:压条繁殖是把母株下面的枝条或丛生花木外围的枝条按倒后埋人土中,促使其节部长出新根,然后切离母体。从而形成一株新的花苗。压条繁殖多用于一些扦插不易发根的花木。
一种外形酷似人形的花的照片最近吸引了无数人的眼球,其整朵花的造型就像一个戴着草帽的裸体男人。
Based on the active failure mechanism generated by a spatial discretization technique, the stability of tunnel face was studied. With the help of the spatial di
Ground surface displacement caused by grouting was calculated with stochastic medium theory. Ground surface displacement was assumed to be caused by the cavity
花卉图案的设计与应用贯穿我们国家整个历史,从原始社会到元明清时代,花卉图案的设计与应用逐渐发展完善。花卉图案与服装设计结合起来,既是花卉图案的自我完善,也是对花卉图