How a Solar Root Stimulator Can Help Grow Healthy Plants

An electrical root stimulator may stimulate plant growth in the absence of bright sunlight.


| January/February 1984



085-122-01-Photovoltaic

A solar cell is more efficient than photosynthesis at converting sunlight into energy.


PHOTO: MOTHER EARTH NEWS STAFF

Everybody knows that there's nothing better than sunlight for promoting plant growth. Or is there? Well, there may not be anything that can actually replace ol' Sol . . . but could there be a better way to use sunlight to help plants grow?

If recent scientific studies on an electrical root stimulator bear out in the real world, the answer is . . . yes! These controlled laboratory experiments have produced heartier plants and bigger harvests. Sound exciting? Then let's dig into the details of this potential breakthrough.

Plant Growth 

Before a leaf can turn the sunbeams it absorbs into food (a process known as photosynthesis ), it must have a source of raw materials. Nutrients are absorbed from the soil by the plant through a vast network of roots . . . intricate structures that contribute as much to a plant's growth as does sunlight.

As a matter of fact, an average plant's root system is fully as large as the structure it supports. Few people are aware that a healthy four-inch-tall plant can be expected to have roots that extend at least four inches below the ground. Of course, this isn't true of all plants, but it's the norm for most productive crops.

Now since the top half of a plant is dependent on the bottom half, it seems logical that stimulating the growth of the roots might lead to a proportional increase in the size of the greenery above. As you'll see, this appears to be the case. Through a process that isn't yet thoroughly understood, mild electrical stimulation of a plant's roots can indeed promote the growth of the entire organism.





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