Definition - What does Substrate Aeration mean?
In hydroponics, substrate aeration refers to the process of perforating the growth soil to enable air, water, nutrients to reach the plant’s roots and substrate. To ensure that your plants can properly thrive and develop, it is important to choose a growing substrate that can hold plenty of moisture. Substrate aeration ensures that your plant is exposed to proper oxygenation to create an adequate growing environment.
MaximumYield explains Substrate Aeration
It should be noted that excessive aeration can have an adverse effect on the plant, encouraging root rot and other similar conditions. An easy way to determine whether your substrate needs to be aerated is to press down gently on it.
If your substrate tends to dry out easily or if it has a spongy feel, then you can add some perforations to boost the uptake of nutrient and increase air circulation. Substrate aeration is especially important for home gardens where children and pets may run on the grass.
Plants growing in poorly-aerated conditions often display the same symptoms as over-watered plants. These include yellowing and wilting leaves as well as drooping stems.