What Are Hydroponic Nutrients And How To Make Them.

Updated: Jun 18

In this blog, you will learn, what are hydroponic nutrients and their ratios and how to mix them correctly.


Hydroponic nutrients are the key to hydroponics.

Hydroponic nutrients are an important factor in plant growth.

The hydroponic system uses more water and shows huge efficiency because they are water based. Because they use water as the main delivery method of nutrients to plants.


Because nutrients are more directly available to plants, hydroponic systems can eliminate bottlenecks to production that are involved in nutrients. This increases the growing capacities of these types of systems.


It also maintains nutrient management of plants. So, what is exactly nutrient management means?

Good hydroponic nutrient management occurs when cultivators are :
  1. Providing correct ratios of nutrients to plants

  2. Providing advocate amounts of nutrients to plants

  3. Getting to know where nutrients come from

  4. Monitoring and measuring each plant nutrient at any given time

  5. Making economic and workflow conscious decisions about nutrients

This thing makes cultivators achieve their growth and now we are going to talk about plant nutrient needs, how to measure and monitor them, and the factors for making wise fertilizer choices.



16 plant nutrients and where plants get them

Most plants (and all of the crop plants that you’re likely to grow) depend on 16 nutrients to grow and reproduce. Of these, three are available through water uptake and gas exchange (the air): Carbon through CO2, hydrogen, and oxygen. Growers should be thinking about air movement and dissolved oxygen levels in the fromwater, irrigation timing, etc., but generally, these practices are considered separately of hydroponic nutrient management.


The remaining thirteen nutrients are the mineral nutrients delivered to plants through hydroponic nutrients dissolved in a solution. We can separate them into 3 groups:

  1. Primary macronutrients, the most abundant building blocks in plant growth and reproduction.

  2. Secondary macronutrients, are also necessary, but in smaller amounts.

  3. Micronutrients, are required in very small quantities for growth and reproduction.


Primary macronutrients: N, P, K


The primary macronutrients are nitrogen, phosphorus, and potassium, or NPK.

Nitrogen is important for all kinds of molecules involved in photosynthesis and protein creation. It is supplied either all at once as in liquid fertilizers, or in two parts (an NPK mix and CaNO3) as in dry fertilizers.

Phosphorus is especially important to cell membranes and is supplied in the main nutrient mix, whether dry or liquid.

Potassium is key to signaling compounds used in plant growth and development in all stages, and like phosphorus is delivered in the main nutrient mix.


NPK is the main nutrients to plants in hydroponics.

Secondary plant nutrients: Ca, Mg, S

The secondary plant nutrients are calcium, magnesium, and sulfur.


Calcium is important to cell walls and is an important structural element. Calcium which interacts uniquely with other nutrients is much less soluble than the other nutrients and can cause precipitation (when dissolved solids recombine to create solids in a solution). This means that it must be mixed separately. It is supplied in calcium nitrate, CaNO3.

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