The Hoagland solution is a hydroponic nutrition solution developed by Hoagland and Arnon in 1938 and revised by Arnon in 1950 and is one of the most popular composition solutions for growing plants (in the scientific world at least). The Hoagland solution provides every nutrient necessary for plant growth and is suitable for the growth of various plant species.
The solutions described by Hoagland and Arnon in the 1950s have been modified several times, especially to add iron editions, the original concentrations for each element are shown below.
- N 210 ppm
- K 235 ppm
- Ca 200 ppm
- P 31 ppm
- S 64 ppm
- Mg 48 ppm
- B 0.5 ppm
- Fe 1 to 5 ppm
- Mn 0.5 ppm
- Zn 0.05 ppm
- Cu 0.02 ppm
- Mo is 0.01 ppm
The Hoagland solution has plenty of N and K so it is perfect for the development of large plants such as tomatoes and peppers. The solution is excellent for plant growth with lower nutrient demand as well, such as lettuce and aquatic plants with further dilution from preparation to 1/4 or 1/5 of the original.
- Potassium nitrate (KNO 3 )
- Magnesium sulfate heptahydrate, MgSO 4 o7H 2 O, and potassium dihydrogen phosphate (Potassium phosphate monobasa), KH 2 PO 4
- Iron EDTA or Iron chelate, Fe-EDTA
- Borat Acid, H 3 BO 3
- Copper Sulfate, CuSO 4
- Zinc sulfate heptahydrate, ZnSO 4 o7H 2 O
- Manganese chloride, MnCl 2 o4H 2 O
- Sodium molybdate, Na 2 MoO 4 o2H 2 O,
- Calcium nitrate, Ca (NOT 3 ) 2 o4H 2 O. The final solution should be added as final.
Procedure:
- Create a stock solution and keep it in a separate bottle with the appropriate label.
- Add each component to 800Ã, mL deionized water then fill it to 1Ã, L.
- After the solution is mixed, ready to water the plants.
What many people may not know is that the Hoagland/Arnon nutrient solution formulation requires one gallon of nutrient solution for use per plant on a weekly basis. If any of these usage parameters are changed, ie the volume of the solution, the number of plants, and/or the frequency of replacement, the performance of the plant will be significantly affected, this is a factor that may not be realized by the person using the formulation.
Video Hoagland solution
References
Maps Hoagland solution
See also
Tomb of Murashige and Skoog
External links
- The exact composition of the Hoagland solution
- Solution description
- National Academy of Sciences: A Biographical Memo Dennis Robert Hoagland by Walter P. Kelley
Source of the article : Wikipedia
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