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Nitrogen (N)

The most essential of all nutrients for leaf and stem development. Nitrogen consumption depends on a plants growth cycle and in a vegetative growth phase of plant nitrogen consumption is greatest. Hydroponic nutrients solutions labeled as “grow” or “flower” contains more concentrations of nitrogen. Nitrogen deficiency is the leading cause of plant growth in indoor hydroponic garden systems. Yellowish, soft and weak plants and leaves are tell-tale signs of nitrogen deficiency.

Half-strength nitrogen solutions are ideal for plants between growing phases. This will prevent plant stretch while it’s switching its energy over to flower development. Normal feeding is resumed once the plant reaches the flowering stage.

Phosphorous (P)

Phosphorous plays a major part in root and flower development. Phosphorous deficiency signs are slow and stunted plant growth. Phosphorous is crucial to a plants flowering stage. “Bloom” type formulas contain a 0-50-30 concentration, containing no nitrogen and high levels of phosphorous and potassium.

Potassium (K)

Different in action from the previous two nutrients, it doesn’t feed the plant directly in any specific stage of growth. It merely facilitates plant intake of other primary and secondary plant nutrients. Potassium deficiency cause irregular plant growth and susceptibility to pests and disease. Potassium inhibits fruit production and should be lessened during this stage.

Secondary Hydroponic Nutrients

Calcium (Ca)

Facilitating and filtering the absorption of other nutrients Calcium is one essential nutrient. It is also a natural base that increases the pH level is needed. Commonly used in the vegetative phase of plant growth, calcium consumption is decreased during the flowering stage.

Magnesium (Mg)

Mainly for chlorophyll production in photosynthesis, deficiency causes yellow leaves.

Sulfur (S)

Yellow leaves are a sign of sulfur deficiency and are only used in small amounts.

Iron (Fe)

Used in small amounts, iron deficiency is similar to sulfur deficiency. Yellow leaves are the general signs of deficiency. High pH causes iron absorption problems so constant monitoring is advised.

Molybdenum (Mb)

Mainly for nitrogen absorption and converts nitrates to ammonium

Boron (B)

Facilitates carbohydrate transport in the phloem, it is not essential and maybe disregarded. Boron overdose causes plant kill, it is not found in regular soils and only supplemented.

How to preparing hydroponic Nutrient Solution

Nutrient solution is made of water with dissolved fertilizer. It is preferable to have excellent quality water to be mixed with the fertilizer, the amount of which is always indicated by the manufacturer. It is very vital to check and adjust if necessary pH level of nutrient solution with liquid pH adjusters. Usually, pH level of the nutrient solution depends on the plant; but, most often it is between 6.0 and 6.5 for the majority of the starter cubes, with the exception being Rockwool, which needs pH level of 5.5 to 5.8. Fertilizing young plants, a gardener should use a nutrient solution as weak as ¼ to ½ of the full strength suggested by the manufacturer. Only plants older than two weeks can be fertilized by the full strength nutrient solutions. It is recommended to keep the growing medium moist, but not too wet or soaked with the hydroponics nutrient solution.      

How to Transplant Seedlings

The seedlings should be transplanted when the roots have grown out of the starter cubes. It is just necessary to place the seedling along with the starter cube on top or into the permanent growing medium, which can be any hydroponic growing medium or just soil. 

Notes in taking cutting for clones

Cutting, as a method of plants propagation, works well only if every step of the procedure is done correctly. Otherwise, experiments may result in devastating consequences. Though, when done properly, up to 95-100% of all cuttings grow successfully, it is still may be a excellent thought to take twice as many cuttings as needed, if you are making first steps in growing cuttings. 

One of the hints to increase chances in successful outcome is to use distilled water, while growing cuttings. Generally speaking, this is one of the most reliable and proven methods of plants propagation, suitable for most of the plants. Other examples of propagation techniques are dividing, air layering, and tissue culture. It is even possible to root cuttings without the use of any growing media in specific hydroponic systems. After forming the first roots, such cuttings are usually transplanted into any type of preferred growing media.

Growing medium is any medium, in which a plant can grow. Generally, hundreds of multiple types of growing medium exist: some are manmade and some are organic. Sometimes, even ancient AIR can work as a excellent growing medium for roots.

Defining the best growing medium is pretty challenging and disputable. It is a matter of personal likes, preferences and exact growing needs or requirements in most cases. It is like choosing a car: everyone picks the one, which suits his/her personal likes and requirements: someone chooses a small economic car for city traffic, and someone prefers powerful SUV to conquer sand and morass. Just like choosing a car depends on many factors, while choosing a growing medium it is also necessary to consider many variables, for example, what type of system is used, what plants you are going to grow and under what environmental conditions. Though there are a fantastic variety of factors to consider while choosing a particular growing medium, it often comes to price, availability and personal preferences. 

The most common types of growing mediums as well the description of their key advantages, disadvantages, their basic characteristics and tips on general use are specified below.

Oasis cubes

 Expanded Clay Pellets

 Rockwool

Coconut Fiber

 Sand

 Gravel

Perlite

 Sphagnum Moss

 Water

Vermiculite

 Fiberglass Insulation

 Saw Dust

Soilless Mix(s)

 Air

 Lava Rock

Oasis cubes

Oasis cubes are lightweight cubes, which serves the best for plants propagation from seeds or cuttings. Pre-formed oasis cubes are commonly used by hydroponic gardeners. This type of growing medium features neutral pH level and can hold water very well.

Since oasis cubes are usually used at the first stages of plant growth, they are usually not larger than 2” x 2” inches in size. It is very easy to transplant such cubes into any type of hydroponic system, growing medium or even into the soil. 

Growing medium is any medium, in which a plant can grow. Generally, hundreds of multiple types of growing medium exist: some are manmade and some are organic. Sometimes, even ancient AIR can work as a excellent growing medium for roots.

Defining the best growing medium is pretty challenging and disputable. It is a matter of personal likes, preferences and exact growing needs or requirements in most cases. It is like choosing a car: everyone picks the one, which suits his/her personal likes and requirements: someone chooses a small economic car for city traffic, and someone prefers powerful SUV to conquer sand and morass. Just like choosing a car depends on many factors, while choosing a growing medium it is also necessary to consider many variables, for example, what type of system is used, what plants you are going to grow and under what environmental conditions. Though there are a fantastic variety of factors to consider while choosing a particular growing medium, it often comes to price, availability and personal preferences. 

The most common types of growing mediums as well the description of their key advantages, disadvantages, their basic characteristics and tips on general use are specified below.

Oasis cubes

 Expanded Clay Pellets

 Rockwool

Coconut Fiber

 Sand

 Gravel

Perlite

 Sphagnum Moss

 Water

Vermiculite

 Fiberglass Insulation

 Saw Dust

Soilless Mix(s)

 Air

 Lava Rock

Oasis cubes

Oasis cubes are lightweight cubes, which serves the best for plants propagation from seeds or cuttings. Pre-formed oasis cubes are commonly used by hydroponic gardeners. This type of growing medium features neutral pH level and can hold water very well.

Since oasis cubes are usually used at the first stages of plant growth, they are usually not larger than 2” x 2” inches in size. It is very easy to transplant such cubes into any type of hydroponic system, growing medium or even into the soil. 

Efficiency in comparison to traditional soil growing systems would be one of the major advantages. Commercial production and just plain hobbyists would find that moving from regular soil growing methods to the modern Indoor Hydroponic systems to be more beneficial. Freedom from uncontrollable variables such as the weather, climate and time of day would be the most vital factor over traditional growing methods. Farmers in Middle East countries would be able to grow plants such as vegetables only previously grown in tropical countries. Light and amount of growth nutrients to be absorbed by the plants could be optimized for best results without wasting any resources. Plant care could be individualized as to the amount of nutrients and light they receive at any time of the day. Plants grown in pots or plots tend to reach a growth plateau, wherein they become root bound and transplanting them is the best solution. This may present the individual with a sense of frustration and could be messy. Expert advice and appropriate plotting beforehand could eliminate such unwarranted difficulties experienced with soil based planting.

Expenses made at the start of the project can be offset by the advantages in the long run. Fertilizers with their ever rocketing cost are major source of expenses in plant cultivation. Plants only take the nutrients they can absorb so maximum nutrient absorption without the risk of putting too much fertilizers is eliminated. But the risk of putting too much nutrients which leads to root hurt remains, so proper nutrient feeding is advised.

All in all, the hydroponic system of growing plants increases plant production and quality of the crops. Nutrients essential for plant growth are readily available, proper ratio and distribution is assured resulting to better efficiency. Pesticides and plant diseases can be avoided as no soil is needed. Soil is an ideal medium for infection and disease, so harm to both plant and the individuals are reduced. Expenses are also reduced as pesticides are eliminated so overall; cost effectiveness is enhanced and make hydroponics a more economical way of growing plants.

For the environmentalist, the hydroponic system of growing plants also presents a more desirable and alternative way of plant production. The effects of growing plants through this new system has proven to be less polluting as it really removes the need for pesticides and leaves the soil free from contaminants. Scientifically tests also show that plants grown through the hydroponic system contain more vitamins and minerals compared to those grown through fields.

Productivity is also increased with the use of Indoor hydroponic systems. Limited spaces for plant cultivation are maximized because smaller pots are used. Indoor hydroponic systems utilize different types of automated watering systems like drip, pumps and other means, allowing for a low maintenance operation. Spaces not available for plant growing can be utilized and together with regular soil gardens or fields, maximize each growing season.

Types of Indoor Hydroponic Systems

Wick or NFT

The system most often used, operated and maintained with the outmost ease. It requires very small setup and maintenance. This is done by simply cutting a hole in the bottom of the pot and a wick is inserted. The wick’s other end connects to the water reservoir below the pot.

Reservoir or Ebb and Flow System

A growing medium is directly placed into a pan filled with water and nutrients. It is easy to maintain, the pans contents needs only to be replaced every few days in order to maintain an effective system. Root adsorption is maximized with root surface in contact with the water, oxygen and nutrients are readily absorbed.

Drip Systems

The most common of all systems, drip systems are the most likely choice of hobbyists and professionals alike. The nutrient solution is kept in a container below the plants and is distributed by a pump to each plant thru a drip irrigation system. One type would be the Recovery type system; excess nutrients are recycled and channeled back into the reservoir. Another would be the Non-recovery type where excess system is not funneled back into the system, one advantage of this is that is a low maintenance system. Ph and nutrient concentration remains stable but is not as economical as the recovery type system.

Aeroponic System

Technically, the aeroponic system is the most advance of the three. Plants are suspended either without a growth rock or growing mediums. This permits the plant to breathe more air through the roots. Nutrients and water are introduced by timed misting. Root health is maintained by a timer and is set at intervals of a few minutes.