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2. Hydroponic dosers - Wikipedia

   en.wikipedia.org/wiki/Hydroponic_dosers

   When growing in hydroponics, the pH of the nutrient solution often drifts off target during use. The same is said for the amount of nutrients in the solution. These devices will automatically measure and adjust the solution as needed. By keeping TDS and pH levels in-range, plants grow efficiently, without health problems. Hydroponic dosers are ...

3. Aquaponics - Wikipedia

   en.wikipedia.org/wiki/Aquaponics

   The nutrient-rich overflow water can be collected in catchment tanks and reused to boost the growth of soil-planted crops or pumped back into the aquaponic system to maintain water levels. [44] In traditional aquaculture, regular water exchange is essential, unlike in aquaponics. Producing 1 kg of beef typically demands 5,000 to 20,000 liters ...

4. Hoagland solution - Wikipedia

   en.wikipedia.org/wiki/Hoagland_solution

   The Hoagland solution is a hydroponic nutrient solution that was newly developed by Hoagland and Snyder in 1933, [1] modified by Hoagland and Arnon in 1938, [2] and revised by Arnon in 1950. [3] It is one of the most popular standard solution compositions for growing plants , in the scientific world at least, with more than 20,000 citations ...

5. pH - Wikipedia

   en.wikipedia.org/wiki/PH

   The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [2] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [3]

6. Hydroponics - Wikipedia

   en.wikipedia.org/wiki/Hydroponics

   Under controlled laboratory conditions hydroponic solutions are periodically pH adjusted to near neutral (pH 6.0) and are aerated with oxygen. Also, water levels must be refilled to account for transpiration losses and nutrient solutions require re-fortification to correct the nutrient imbalances that occur as plants grow and deplete nutrient ...

7. Bjerrum plot - Wikipedia

   en.wikipedia.org/wiki/Bjerrum_plot

   Example Bjerrum plot: Change in carbonate system of seawater from ocean acidification.. A Bjerrum plot (named after Niels Bjerrum), sometimes also known as a Sillén diagram (after Lars Gunnar Sillén), or a Hägg diagram (after Gunnar Hägg) [1] is a graph of the concentrations of the different species of a polyprotic acid in a solution, as a function of pH, [2] when the solution is at ...