【摘 要】
：
花卉浇水５要领李金兰，刘玉洲，李金荣１．不浇过头水。盆栽花卉浇水过多，会使土壤长期处于水分饱和状态，土壤中空气被水代替，这时外部空气也不能进入，因而造成土壤缺氧，根的呼吸作用受到阻
论文部分内容阅读
花卉浇水５要领李金兰，刘玉洲，李金荣１．不浇过头水。盆栽花卉浇水过多，会使土壤长期处于水分饱和状态，土壤中空气被水代替，这时外部空气也不能进入，因而造成土壤缺氧，根的呼吸作用受到阻碍，生理功能降低，根系吸水、吸肥能力受阻，同时因土壤缺氧，土壤中具有分...
Flower water 5 essentials Li Jinlan, Liu Yuzhou, Li Jinrong 1. Do not over water. Potted water too much, will make the soil long-term water saturation, the soil air is replaced by water, then the outside air can not enter, resulting in soil anaerobic, root respiration was hindered, physiological function decreased, the root of water , Fat absorption capacity blocked, at the same time due to soil hypoxia, the soil has sub-...
其他文献
Blue phase has three-dimensional period configuration and is composed with chiral liquid crystal.In the early simulation software or model,the electrical Ke
在我国北方,蔬菜生产成规模以后,南北温室的间距问题未引起技术人员的重视。由于错误确定前后排温室间距,给菜农造成很大损失。 如果温室间距过小,就会形成前排温室对后排温
A new series of liquid crystal dimmer possessing azobenzene were synthesized and applied to blue phase (BP).The special structure of dimmer can stable blue
人在生病时,或在发病之前,总会有一定的症状或先兆,有些人常不重视这些症状,以至延误病情,甚至造成严重的后果。下面是易被人忽视的8种身体症状。 一、单侧腿疼 凯瑟琳28岁,
反季节栽培黑木耳优质高产技术四川省林科院食用菌扬罗凡黑木耳的反季节栽培是指改传统的７－８月制作菌袋，１０－１１月采耳，为冬季低温期制袋春季自然气候出耳的新技术。实践证明此方法能有效
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
The electric field induced by the conventional IPS electrodes is not uniform,which leads to the complex induced-birefringence profile,as a result,the optica
“台湾报纸刊登我的照片,我很高兴,我也感谢他们!阔别三十多年,台湾观众和电影界同行仍然没有忘记我,怎不叫我感慨不已呢!”前几年,著名电影演员王丹凤得知台湾出版了一部大
苹果增产菌对苹果的增产防病效果试验研究河南省三门峡市植保站三门峡４７２０００郭建平，杭海龙，张自由，朱建明三门峡市位于豫、晋、陕三省交界处，属豫西丘陵山区。土层深厚，酸碱度适中，昼夜温