digplanet beta 1: Athena
Share digplanet:


Applied sciences






















The Hoagland solution is a hydroponic nutrient solution that was developed by Hoagland and Arnon in 1938[1] and revised by Arnon in 1950[2] and is one of the most popular solution compositions for growing plants (in the scientific world at least). The Hoagland solution provides every nutrient necessary for plant growth and is appropriate for the growth of a large variety of plant species. The solution described by Hoagland and Arnon in 1950 has been modified several times, mainly to add iron chelates, 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 0.01 ppm

The Hoagland solution has a lot of N and K so it is very well suited for the development of large plants like tomato and bell pepper. The solution is very good for the growth of plants with lower nutrient demands as well, such as lettuce and aquatic plants with the further dilution of the preparation to 1/4 or 1/5 of the original.[3]

  1. Potassium nitrate(KNO3)
  2. Magnesium sulphate heptahydrate, MgSO4•7H2O, and potassium dihydrogen phosphate (Potassium phosphate monobasic), KH2PO4
  3. Iron EDTA or Iron chelate, Fe-EDTA
  4. Boric Acid, H3BO3
  5. Copper Sulfate, CuSO4
  6. Zinc sulfate heptahydrate, ZnSO4•7H2O
  7. Manganese chloride, MnCl2•4H2O
  8. Sodium molybdate, Na2MoO4•2H2O,
  9. Calcium nitrate, Ca(NO3)2•4H2O. Last solution must be added as final.
Component Stock Solution mL Stock Solution/1L
2M KNO3 202 g/L 2.5
1M Ca(NO3)2•4H2O 236 g/0.5L 2.5
Iron (Sprint 138 iron chelate) 15 g/L 1.5
2M MgSO4•7H2O 493 g/L 1
1M NH4NO3 80 g/L 1
H3BO3 2.86 g/L 1
MnCl2•4H2O 1.81 g/L 1
ZnSO4•7H2O 0.22 g/L 1
CuSO4•5H2O 0.051 g/L 1
H3MoO4•H2O or 0.09 g/L 1
Na2MoO4•2H2O 0.12 g/L 1
1M KH2PO4 (pH to 6.0) 136 g/L 0.5


  1. Make up stock solutions and store in separate bottles with appropriate label.
  2. Add each component to 800 mL deionized water then fill to 1 L.
  3. After the solution is mixed, it is ready to water plants.

What many persons may not know is that the Hoagland/Arnon nutrient solution formulations have a use intent that one gallon of nutrient solution is used per plant with replacement on a weekly basis. If any of these use parameters are changed, i.e., the volume of solution, number of plants, and/or frequency of replacement, plant performance will be significantly affected, this is a factor that may not be realized by persons using the formulations.[4]


  1. ^ Hoagland, Dennis (1938). The water-culture method for growing plants without soil (Circular (California Agricultural Experiment Station), 347. ed.). Berkeley, Calif. : University of California, College of Agriculture, Agricultural Experiment Station. Retrieved 1 October 2014. 
  2. ^ Hoagland and Arnon (1950). The water-culture method for growing plants without soil. Berkeley, Calif. : University of California, College of Agriculture, Agricultural Experiment Station. 
  3. ^ "The Hoaglands Solution for Hydroponic Cultivation". Science in Hydroponics. Retrieved 1 October 2014. 
  4. ^ "Hydroponics 101 - Nutrient Solutions: Historical Background, Formulations and Use, Part 1". Garden Greehouse. Retrieved 1 October 2014. 

External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Hoagland_solution — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
1028 videos foundNext > 

Solution Preparation

One of the most important laboratory abilities at all levels of chemistry is preparing a solution of a specific concentration. This video takes you through the proper ...

Mixing my hydroponic nutrients solution for best results

Ive used this system for years now I grow 40 to 60 heads a month of salad greens I this mix solution has given me my the best results. I use General Hydroponics ...

How To Mix a 3-Part Hydroponics Nutrient Solution

In under three minutes we show you how to mix a three-part hydroponic nutrient solution using the General Hydroponics Flora Series Advanced Nutrient System.

Sandy Hook: Why Hoagland Went Missing

Real estate fraud exposed https://youtu.be/0KawZu24-SA http://ct.blockshopper.com/sales/by_city/newtown 3 maple in may ...

Richard Hoagland : NASA's Hidden Conspiracy Part 1/3

http://coasttocoastam.com http://www.youtube.com/user/nwotaser Richard Hoagland in this interview by George Noory details how he believes that NASA is ...

Richard C. Hoagland reports on GAS bubble from BP oil VOLCANO - Part 1 of 2

An excerpt from the June 14, 2010, C2C interview with Richard C. Hoagland, who relays information he is receiving from Deepwater Horizon insiders, both ...

Bigcommerce reviews. Get $100 adwords. Try Bigcommerce for 14 days free

http://bit.ly/bigcommerceoffer Bigcommerce is one of the best shopping cart solutions you can get. The platform is amazingly feature rich. Design your online ...

2012 UFO's ALIENS NAZI's Hoagland Farrell Pt 5 OF 15

In a special 4-hour show, Richard C. Hoagland discussed Wernher von Braun's secret related to anti-gravity technology and space exploration. Researcher ...

Hoagland Newtown Missing Real Estate Agent

check out these links http://spineasytime.blogspot.ca/2008/04/where-is-tony-hoaglands-bio.html ...


Gregg Braden and Richard C. Hoagland talk about what they think will happen in late 2012. They explain the Consciousness field of Earth and how it is ...

1028 videos foundNext > 

2 news items

CO2 Science Magazine

CO2 Science Magazine
Thu, 30 Jul 2015 08:00:00 -0700

... with half-strength Hoagland's solution and trimmed to maintain a normal canopy height of 5-6 cm, after which they were moved to growth chambers with temperatures set at 35/30°C (day/night), 70% relative humidity and photosynthetically-active ...
BMC Blogs Network
Sat, 11 Apr 2015 16:40:25 -0700

A modified Hoagland's solution [27] (minus nitrogen) was stored in a 340 L lidded plastic pail and diluted with water at a ratio of 1:100 at the time of application. The pH of the diluted nutrient solution was adjusted to a range of 6.5-6.7 with the ...

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight