植物的水培实验

• 作 者: 谭钧
• 机 构: 北京第二十六中学,
• 出 处: 生物学通报
• 发表日期: 1981年06期
• 关键词: 水培实验 缘折 生活周期 塑料窗 载片 实验活动 沙床 营养液配方 生长发育 砂床

选择黄瓜、番茄作为水培实验植物是很适宜的(见封三图)。它们的根系小生活周期短、生长发育快并可供进行各种实验活动之用。 (一) 水培装置的准备 1.小沙床使用小沙床育苗为水培提供幼苗。小沙床的装置如图1所示,制作方法如下: (1) 用四片载片围成方框,四角用橡皮膏连接固定。用滤纸按框的内缘折成小纸盒放入框内。 (2) 取较大的烧杯一只,用塑料窗纱蒙在烧杯口上,并用绳扎牢。

Select cucumber, tomato as hydroponic experiment plant is very suitable (see seal three map). Their small root-based life cycle is short, rapid growth and development and can be used for a variety of experimental activities. (A) Preparation of hydroponic device 1. Small sand bed using small sand bed nursery to provide seedlings for hydroponics. Small sand bed device shown in Figure 1, the production method is as follows: (1) with four slides enclosed box, corners with adhesive plaster connection. Use the filter paper by the inner edge of the box folded into a small box into the box. (2) Take a larger beaker, with a plastic window covered in the beaker mouth, and tied with a rope.