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Hydroponic Hygrometer

Hydroponic System DiagramTo ensure that your plants are being fed the proper nutrients and nutrient concentrations, it is important to monitor your nutrient solution.

On a daily basis you should test the nutrient solution and record the results

  • EC (Nutrient concentrations)
  • PH (acidity / alkalinity...see Lesson 4 for more information on PH)
  • Temperature of nutrient solution
  • Daytime room temperature
  • Nighttime room temperature

It is also important to record when you replace your nutrient solution so you can easily determine when it should again be replaced.

In addition to these tests, you may also want to record the stage of plant growth, the size of your plants and any problems or significant changes.

Recording this information gives you an accurate accounting of what is happening with your plants. This data is an excellent tool for diagnosing problems, should they arise.

Advanced Nutrient Testing
Neither an EC or TDS meter can indicate precisely what nutrients make up the fertilizer solution. More complete test kits are available for this purpose. Many commercial growers test their nutrient solutions on a regular basis to ensure they are feeding exactly the mix that is intended. Regular leaf analysis is an excellent tool for determining the health of your plants. Leaf tissue samples are dried, crushed and analyzed to determine the exact nutrient content.

Most of the more complex kits will test nitrogen, potassium, phosphorous and sulfur. Commercial labs offer more precise results. In the event of a combination of nutrient deficiencies, the symptoms of one problem may mask the symptoms of another. A leaf tissue analysis may be the only way to determine what is wrong with your plants.

Listed below are some testing devices to get started with.


Whynter Cedar Stainless Steel 2.5 Cu. Ft. Cigar Cooler Humidor Hygrometer Cigars picture
Whynter Cedar Stainless Steel 2.5 Cu. Ft. Cigar Cooler Humidor Hygrometer Cigars
$345.0

WHYNTER 2.5 cu ft Cigar Cooler Humidor Storage Stainless Steel Analog Hygrometer picture
WHYNTER 2.5 cu ft Cigar Cooler Humidor Storage Stainless Steel Analog Hygrometer
$344.68

Cigar Cooler Humidor Freestanding Electric Hygrometer Stainless Steel 2.5 cu.ft picture
Cigar Cooler Humidor Freestanding Electric Hygrometer Stainless Steel 2.5 cu.ft
$344.3

Cigar Cooler Humidor Freestanding Electric Hygrometer Stainless Steel 2.5 cu.ft picture
Cigar Cooler Humidor Freestanding Electric Hygrometer Stainless Steel 2.5 cu.ft
$339.17

Brass Clock and Hygrometer Thermometer on Stand picture
Brass Clock and Hygrometer Thermometer on Stand
$339.0

Brass Clock and Hygrometer Thermometer on Stand picture
Brass Clock and Hygrometer Thermometer on Stand
$339.0

Cigar Cooler Humidor Stainless Steel 2.5 cu. ft.Freestanding Electric Hygrometer picture
Cigar Cooler Humidor Stainless Steel 2.5 cu. ft.Freestanding Electric Hygrometer
$338.96

Cigar Cooler Humidor Freestanding Electric Hygrometer Stainless Steel 2.5 cu.ft picture
Cigar Cooler Humidor Freestanding Electric Hygrometer Stainless Steel 2.5 cu.ft
$337.45

Cigar Cooler Humidor Freestanding Electric Hygrometer Stainless Steel 2.5 cu.ft picture
Cigar Cooler Humidor Freestanding Electric Hygrometer Stainless Steel 2.5 cu.ft
$336.99

Ambient Weather Ws-10 Wireless Indoor/Outdoor 8-Channel Thermo-Hygrometer W/ Th picture
Ambient Weather Ws-10 Wireless Indoor/Outdoor 8-Channel Thermo-Hygrometer W/ Th
$334.85

Ambient Weather F007th Wireless Thermo-Hygrometer For Ws-07 Weather Stations New picture
Ambient Weather F007th Wireless Thermo-Hygrometer For Ws-07 Weather Stations New
$334.85

❤ Tigervivi Digital Thermometer Hygrometer Temperature Humidity Clock With Weath picture
❤ Tigervivi Digital Thermometer Hygrometer Temperature Humidity Clock With Weath
$334.85

Grow Tent+Grow Light Hanger+Digital Hygrometer+Shears+24 Hour Timer+Trellis Net picture
Grow Tent+Grow Light Hanger+Digital Hygrometer+Shears+24 Hour Timer+Trellis Net
$331.43

Delmhorst HT-3000 Thermo-Hygrometer picture
Delmhorst HT-3000 Thermo-Hygrometer
$328.0

Whynter Cigar Cooler Humidor 2.5 cu. Ft. Stainless Steel Electric Hygrometer picture
Whynter Cigar Cooler Humidor 2.5 cu. Ft. Stainless Steel Electric Hygrometer
$327.85

Station Weather Vista Chrome Machinery Barometer Thermometer Hygrometer picture
Station Weather Vista Chrome Machinery Barometer Thermometer Hygrometer
$314.11

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