

All trees were fertilized equally according to Auburn University recommendations both years.
All trees were watered using drip irrigation.
Treated trees received injections from the Guin Tree Feeder during August and December
of 2001 and during April and September of 2002.
Materials used in the injections over the two years included Agri-Gro, air, water, plant food
and Carbon Booster.
The treated areas resulted in an 83% increase in pecan production while the standard
practice showed a 20% decrease in production for the same time period.
What Is The Guin Tree Feeder And How Does It Work?
The Guin Tree Feeder is a revolutionary machine originally designed to fertilize trees and
shrubs. This patented feeder accurately measures the amount of nutrients to be used and injected
into the soil with water and air. It has been proven to be a superior tool to properly
care for the feeding and saving of trees and shrubs throughout the United States.
The Guin Tree Feeder uses compressed air to loosen the soil, then uses another blast of
compressed air to "blow in" the desired nutrients. The initial blast of air loosens the soil from
around the feeder roots providing optimal aeration. This aeration also supplies the feeder
roots nitrogen. The desired liquid nutrients are then "blown in" throughout the feeder root
system. Since the nutrients are in a liquid form instead of granular, they are readily available
to the tree and can be absorbed by the tree almost immediately.
Whether you are a commercial grower, grow and maintain trees on your own property, or
you plant trees to beautify the streets of your city, University campus or industrial site, the
Guin Tree Feeder system can help optimize your efforts. This system has been inspected
and tested by leading Universities on their campuses and in a laboratory environment, with
great success. It is used by commercial orchards (pecans, oranges, etc.), to optimize production.
The Guin Tree Feeder is easy to use. It precisely measures the amount of nutrients to be
dispensed for each shot. The number of shots for each tree is scientifically calculated. The
shots can be evenly spaced within the drip line of the tree.
The Guin Tree Feeder can also perform foliage feeding on trees, shrubs, and even lawns.
This feeding is done by spraying nutrients over the plants in need. A unique high-powered
sprayer located on the Tree Feeder is used for a quick, convenient spraying and reaching
those hard to reach areas, including the tops of trees and their leaves.
There are five key research findings that increase water absorption of the trees. They are:
1. Young Root Life, Lack of Oxygen causes roots to die in hours.
2. Lack of Oxygen leads to acidic acid, and carbon dioxide build-up causing medium
sized roots to die. This shuts down the tree for weeks.
3. When there is no Oxygen in the soil, active absorption by the root zone stops. You
have to have oxygen immediately adjacent to the roots in order for water to get in.
Everything that a tree uses, except light and carbon dioxide has to come through
the roots.
4. Hormone Deficiencies. Lack of a good root system shuts down the
hormone system.
5. Salt Toxicity magnified. Salt becomes four times more toxic when there is
no oxygen.
Fortunately, the Guin Tree Feeder will increase water absorption by dealing with all five of
the above points.

[ BACK TO MAIN FIELD RESEARCH ]
Complete details on all mentioned test results are available upon request. Timing and rates
of application are important for maximum results. For specific usage and application rates,
ask for Agri-Gro grower information sheets.