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Hydroponic Questions and
Answers |
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What is hydroponics?
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Why grow hydroponically at
all?
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What are the advantages
of hydroponics over soil?
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What kind of plants can be
grown hydroponically? |
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Can hydroponic plants
be organic?
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Wil the flavor of hydroponic
produce compare to veggies from my outdoor, organic garden?
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Introduction to Hydroponics |
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Overview |
| A Brief History |
| How to Grow Hydroponically |
| Growing Medium |
| Light |
| Nutrients |
| Ventilation
and Carbon Dioxide |
| Temperature |
| Our Package Systems |
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What is hydroponics? |
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Hydroponics is the method of growing plants without soil. Instead
of nutrients in the soil, plants thrive on a nutrient solution which
contains the minerals that the plants need. So, rather than searching
throughout the soil for minerals, your plants are able to get nutrients
easily, directly from the nutrient solution. Grow media -- such
as gravel, peat, vermiculite, Perlite, coco, old rubber tires, rockwool
or expanded clay aggregates -- is often used to support the plants
and their root systems and perhaps to hold moisture around the roots.
The growing medium is not a source of nutrients in itself.
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Why grow hydroponically at all? |
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Hydroponic gardening is an easy, environmentally sound way to grow
a wide variety of healthy plants. It offers numerous benefits including:
- Plants grow up to 50% faster than in soil because they have
easy access to food and water.
- It is possible to garen indoors all year round
- Nutrients are directly available to plants and don't get bound
up
- Little or no pesticides are necessary. Plants start out in
a disease-free medium.
- Smaller containers can be used because the roots can grow without
being rootbound
- Gardening is possible where it would not be normally e.g. poor
soil, rocky areas, even balconies. With the use of artificial
lighting it is even possible to successfully garden in a spare
room or garage.
- Less labor is required than growing in soil because no digging
or weeding is required.
- Since plants do not need to compete for nutrients, more can
be grown in a smaller area.
- The increased control over growing conditions makes it easier
to provide the best possible environment for plants, leading to
better quality produce and higher yields.
- Fast growing healthy plants grown by hydroponic methods are
more resistant to pests and diseases.
- You will also notice improved flavor and texture in hydroponically
grown fruit and veggies
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What are the advantages of hydroponics over soil? |
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Plants grown in hydroponic systems maintain optimum nutrient and
moisture levels, so they grow faster and healthier. And no soil
means no weeds and no soil-born pests or diseases. Another advantage
is that root systems stay smaller on hydroponically grown plants,
allowing the plant to focus its growth energy on producing plant
mass rather than roots. This means you can have more plants per
square foot of growing space. And since hydroponic plants never
get root bound, they don't need to be repotted. Hydroponic produce
has a longer shelf life than soil grown produce.
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What kind of plants can I grow with hydroponics? |
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Just about anything, although some plants are more delicate or
require more space than others. Here some of the veggies we suggest:
tomatoes, sweet peppers, cucumbers, squash, snow peas, beans, spinach,
lettuce, chard, hot chilies, and broccoli. Also, you can grow all
kinds of herbs, flowers and house plants in your hydroponic garden.
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Can hydroponic plants be organic? |
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Yes. Although the two growing methods were at one
time thought to be incompatible, there is common ground. Hydroponic
growing is based on immediate and 100% nutrient availability. Organic
fertilizers typically break down over a period of time via bacterial
action in the soil. There are many hydroponic nutrients on the market
that are made from organic materials, and as the science progresses,
more and more organic options are being put forward. The best organic
nutrient on the market right now is the
Botanicare Line.
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Will the flavor
of hydroponic produce compare to veggies from my outdoor, organic
garden? |
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Don't be surprised if your hydroponic vegetables taste better than
the ones from your garden. Because hydroponically grown plants get
everything they need, when they need it and without stress they
are able to grow much healthier than their organic cousins. Remember
with soil, important micronutrients are often "locked away"
where your plants cannot take full advantage of them. That's why
hydroponics is so great! You have complete control over the type
and quantity of minerals your plants are feeding on. This advantage
often produces fruits and vegetables that are far superior to organic
produce in taste, color, size and even, nutritional value. You will
also get more than you ever have before!
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Overview
Hydroponics is simply the growing of plants without soil. Plants
are grown in an inert medium and fed a solution containing a perfected
mix of primary, secondary and micro-nutrients. Hydroponics makes
it possible to grow plants in locations where it had not previously
been possible, for example on rooftops, or in rocky, barren locations.
With the use of an appropriate HID lamp, it is even possible to
grow successfully indoors.
Almost any kind of plant can be grown hydroponically, and because
plants have access to the exact nutrients they need, they respond
by growing more rapidly while producing bigger yields. Field tests
have shown that hydroponically grown produce is packed with more
vitamins and minerals than soil grown, either organic or non-organic.
Not only are nutritional values higher, but the flavors are also
outstanding. Since plants start out in a disease and pest free medium,
little or no pesticides
are necessary.
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A Brief History
Although hydroponics is the farming method of the future, it has
been utilized for hundreds and hundreds of years by many different
kinds of people. As noted in Hydroponic Food Production (Fifth Edition,
Woodbridge Press, 1997, page 23) by Howard M. Resh: "The hanging
gardens of Babylon, the floating gardens of the Aztecs of Mexico
and those of the Chinese are examples of 'Hydroponic' culture. Egyptian
hieroglyphic records dating back several hundred years B.C. describe
the growing of plants
in water.
Over the last hundred years, scientist and horticulturists have
experimented heavily with hydroponics. The goal has been to grow
fresh produce in areas of the world without soil. Hydroponics was
used to feed troops in WWII, and it has been integrated into the
space program. More recently it has been adopted by farmers and
hobbyists who see the value of hydroponic growing, including the
ability to produce higher yields, with less pesticides and less
water waste.
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How to Grow Hydroponically
In order to have your own automated hydroponic system you need several
key things; a reservoir to hold nutrient, a pump to circulate the
nutrient, and growing trays and pots for the plants to be held in.
You can build your own system, and many growers do, using miscellaneous
equipment from a hydro shop and the local hardware store. Or you
can choose to purchase a pre-buit system. Hydroponic systems can
range in price and sophistication from under a $100 to several thousand.
It all depends on the scale at which you intend to grow and the
environment you need to produce for your plants.
If you wish to grow only one or two plants, we suggest a smaller
scale system such as the SoloGro,
the WaterFarm
or the
Baby Bloomer.The SoloGro comes equipped to hold four plants.
The Baby Bloomer comes equipped to grow up to six plants. But one
or two plants would do GREAT in any of these systems. If you wish
to grow six to eight plants, you might check out the MicroGardens.
If you are looking for eight large plants, we suggest a
WaterFarm™ Kit which consists of eight planters and a large
master nutrient controller.
Another option would be the
American Hydroponics 3x3 ebb & flow System. You can fit
many smaller plants in the 3x3 trays, or you could fit ten larger
plants.
If you wish to go the absolute cheapest route, you can always hand
water your plants in a mixture of perlite and vermiculite. This
is still hydroponic and will still yeald better than handwatered
soil plants. If you wish to go this route, Check out Ready-Gro®
Potting Mix .
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Growing Medium
An inert growing medium is used in the pots to support plants and
protect roots from the sunlight. It gives the roots something to
hold on to. Plants need air just as much as they need water, and
the key element to a successful grow medium is its ability to hold
an abundant amount of oxygen as well as ample amounts of water.
A grow medium must drain well and provide good conduction of nutrient
and moisture to the root zone. Common materials are expanded clay
(Hydroton) and Rockwool, but sand, gravel, or a mixture of perlite
and vermiculite can be used as well.
Click here
to learn more about choosing a grow medium.
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Light
Light is not an issue for outdoor plants, but in order for
sun-loving plants to thrive indoors, artificial light of the correct
spectrum and intensity must be supplied. This is accomplished with
High Intensity Discharge (HID) Lights. There are two types of HID
lights, Metal Halides (MH) and High Pressure Sodium (HPS), and they
both cover a different part of the light spectrum. MH lights reproduce
the blue end of the spectrum and are used for young plants in the
vegetative state as well as for leafy green vegetables such as lettuce
and spinach. HPS lights are used for plants which will eventually
produce fruit or flowers, such as tomatoes or roses.
Click herefor
more information about horticultural lighting and how to choose
the best light for your needs.
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Nutrients
Proper nutrient formulation is essential to hydroponics. All minerals
that the plants need are dissolved in water which is then circulated
through the system to the plants. The nutrient solution is monitored
for both pH level and nutrient levels which are maintained at optimum
levels. The pH of a solution selects what nutrients will be readily
absorbed by a plant’s root system and should be adjusted according
to what plants are being grown.
Click here for
more information about Nutrient and pH.
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Ventilation and Carbon Dioxide
The current of air that circulates around plants is as important
in a grow space as light, water, or nutrients. Proper ventilation
removes excess heat and humid air, while providing plants with healthy
supplies of CO2, which plants need to thrive. CO2 enrichment can
be used to further increase plant health and vigor. Click
here to learn more about ventilation and Carbon dioxide.
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Temperature
Plants are heat and cold sensitive just like people. Most indoor
grow rooms get plenty of heat from the lamps, although greenhouses
often need heating in the winter. In most situations, proper venting
can keep temperatures from getting too high, however if a room is
running more than 3000 watts of light, and /or is employing CO2
enrichment, an air conditioner might be necessary.
Click here to learn more about temperature control in grow
room environments.
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Our Package Systems
We have created a series of six different package systems on a scale
of hobby to professional. Click on the links to see the first two
of these systems, for a good idea of what your growing system might
entail.
Package
System 1
A great ebb & flow system for a beginning or small scale grower.
Simple to set up and use, this system is ready to go right out of
the box! We include just about everything you need to get started,
including the hydroponic system, a pump, light and nutrient monitoring
capabilities.
Package System 2 -
Drip System or
Ebb & Flow
This system is an upgraded version of the original starter set.
It allows for more options and upgrades, and it may be ordered as
either an ebb and flow OR a drip system. This is an excellent budget
system with a few extra tools. It includes nutrient monitoring capabilities
as well as a more powerful pump for greater aeration.
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