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Hydroponics Nutrients

Hydroponics Nutrients are one of the basics of any hydroponic system. In order for a fertilizer to be incorporated into a hydroponic system it must be soluble in water. If not, the plant cannot access it. With Hydroponics the grower has complete control over the implementation of fertilizer, regarding type and concentration.

Nutrients are either fertilizers or plant food. Since we have taken soil away we need to provide what soil would. They make all kinds and types of nutrients organic, synthetic, powder, liquid, 1 part 2 part and many more. Nutrients are the basis of any hydroponic system and since we need to meet all of the plants nutritional requirements, it’s important to know what you are supplying and what can go wrong. With any nutrient solution the two factors to keep in mind are firstly the composition of your nutrient – does it contain all of the elements required for plant growth in the correct ratios.

Most Common Hydroponics Nutrients

The composition of the nutrients is important and there are over twenty elements that are needed for a plant to grow. Carbon, hydrogen and oxygen are absorbed from the air and water. The rest of the elements, called mineral nutrients, are dissolved in the nutrient solution and need to be in the correct ratios. Any good Hydroponic nutrient should contain all of these elements;

Macro-Nutrients for Hydroponics

  • Nitrogen (N)
  • Potassium (K)
  • Phosphorous (P)

Micro-Nutrients for Hydroponics

  • Calcium (Ca)
  • Magnesium (Mg)
  • Sulphur (S)
  • Iron (Fe)
  • Manganese (Mn)
  • Copper (Cu)
  • Zinc (Zn)
  • Molydenum (Mo)
  • Boron (B)
  • Chlorine (Cl)



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