Intention
A first test setup is designed to get evidence, if the assumption might be right and system proposed could be effective.
The
tests are designed as simple as possible in order to avoid bareers like
costs and intensive training. The first tests don't have a scientific
claim, they are designed to work as a proof of concept.
Goal
The test tries to get an idea of the influence of the following parameters
- Depth of injection / injection pressure
- Addition of fertilizer
Design of the test

To answer this question, 5 sprouts are planted in a row with a distance of 3 meters to each other.
The first two pair of sprouts have the injection installed at 40 cm below surface.
The second pair of sprouts have the injection installed at 80 cm below surface.
The fifth tree is planted in the line with enough distance as a reference without any manipulation.
2 pairs of sprouts have one pillar about 2.5 meters high placed in the middleof the 2 plants.
The pillar holds the water bags by giving pressure through its higth.
It contains red/white marks every 10 cm allowing to measure the growth of the plant very simple by checking the pictures.
In
order to get pictures, another pillar of about 1 meter is placed in ten
meters distance of the middle plant is marked to hold the camera
shooting position.
Like
this the progress can be captured with a picture every morning at the
same time by simply putting the camera on the pillow and click.
Tith the marks on the pillows the progress of growth can be measured easely through the picture.
Estimating the effect of the depth of injection
For this purpose the sprout 1 and 2 will have an injection depth at 40 cm, sprout 4 and 5 at 80 cm.
The
guess is that the injection at 80 cm will have the better results,
because there will be less water ascending to the surface. In addition
it will cause the roots to grow in a deeper area thus stabilizing the
tree better.
Estimating the influence of the fertilizer
Sprout 1 and 3 is irrigated with a liquid containing fertilizer close to the saturation limit,
sprout 2 and 4 is irrigated with pure water only.
The 5th sprout is the reference plant without water nor fertilizer.
The assumption is that the plants feeded with fertilizer will grow faster.