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Hydroponic Chillers -- Hydroponic Systems Techniques
Apr 07, 2017


Hydroponic Systems Techniques :


Regardless of the type of soilless cultivation, several basic aspects must be grasped, soilless cultivation of nutrients must be dissolved in water, and then supply the plant roots. When the substrate is cultivated, the nutrient solution is poured into the matrix and then absorbed by the crop roots. So the water quality, nutrient understood.


(A) water quality


Water quality and nutrient solution preparation is closely related. The main indicators of water quality standards are electrical conductivity (EC), pH and harmful substances are exceeded.

Conductivity (EC) is an indicator of salt concentration in solution, usually expressed in milliseconds (ms). Various crops have different salt tolerance, salt tolerance (EC = 10mS) such as beet, spinach, cabbage. Salt-resistant medium (EC = 4mS), such as cucumber, bean, sweet pepper and so on. Soilless cultivation is strict on water quality, especially in hydroponics, because it does not have the ability to buffer the soil cultivation, so many elements are lower than the allowable concentration of soil cultivation, otherwise it will be poisoned, some farmland water is not suitable for Soil cultivation, collecting rain to make soilless cultivation, is a good way. Soilless cultivation of water, the pH value should not be too high or too low, because the general crop of nutrient solution pH requirements from the neutral as well, if the water itself is low pH, it is necessary to use acid or alkali to adjust, And time-consuming.


(B) nutrient solution


Nutrient solution is the key to soilless cultivation, different crops require different nutrient solution. At present the world published a lot of recipes, but much the same, because the original formula is derived from the chemical composition of soil extract. Nutrient solution formula, the biggest difference is the proportion of nitrogen and potassium. 



Hydroponic Gardening Chillers