More Information on Mixing -
The growth process is simple, but must be correctly
understood in order to succeed. Plants will prosper, in the absence
of pests, when supplied with sufficient quantities of light, water,
fresh air, and a short list of nutrients. When these few items are
made available to the plants in an environment which enables their
consumption, then the crop can not help but flourish.
With that in mind, one buys a
competent nutrient supply, mixes it with clean water,
supplies plenty of light and fresh air. However, one
critical component is missing .... perhaps the most
important. Until you have ensured the proper pH for the root
zone, you are doomed to fail. Proper mixing is a critical
step in ensuring the proper pH, and therefore, is vital to
the operation and maintenance of most hydroponics systems.
Nutrient uptake by the plants is dependant upon two major
controls: nutrient concentrations (PPM) and pH. Healthy
plants require both the correct nutrient concentrations, and
a pH value that is in the range required by the plant to
allow for the uptake of the nutrients.
Want more information on pH?
Mixing plays a vital role in ensuring that PPM
and pH measurements are accurate. Failing to mix
properly is a common problem ....
resulting in local parameter variations within
the tank. Crop health is vitally linked to the
thoroughness of the mixing .... known as the
'quality' of the mix. Without proper mixing, all
system measurements, both state measurements and
'delta' values, will be unreliable. Fundamental
science prescribes that
measurement precedes precise control.
Few statements could be as applicable to the
science of hydroponic gardening. In order to
precisely (and easily) control both the pH and
the nutrient concentrations,
MIX! A properly mixed reservoir may
reliably have system parameters accurately
measured and altered as desired. This simple
understanding will guarantee your ability to
Countless hydroponic gardeners have suffered endless chasing
of pH or nutrient ppm values, not realizing that they simply
were not obtaining accurate measurements of these parameters
due to inadequate mixing.
Improper mixing is a very
leading to wasted time, nutrients, and pH buffers .... and
of course immeasurable loss of productivity with the crop.
In practice, an improperly mixed reservoir results in pH and
nutrient concentrations set improperly. This improperly set
reservoir mixture is then distributed to the plants. Only
after several feedings of the plants has the reservoir been
mixed enough to finally stabilize the values. By now the
crop has been subjected to the trauma of an improperly
stabilized solution, causing pH lockup, and resulting
in the well known nutrient deficiencies.
Growing Machine (tm)
problem with two specific design features. First, our
filter/mix capability allows the reservoir to be
continuously recalculated under pump power to ensure a
perfect mix. This guarantees accurate measurement and
precise control of the reservoir state. Second, the entire
recirculation/mix takes place totally within the reservoir.
This ensures that no improperly stabilized nutrient
solutions are presented to the crop before the correct state
has been established. These two design features, along with
the pH stability of the system and the reduced volume of
growing medium, allow our systems to be extremely stable and
easy to control ....