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Kratky Buttercrunch Lettuce


Kratky Method Buttercrunch Lettuce

Kratky Method Buttercrunch Lettuce

Kratky Method Buttercrunch Lettuce

2018-04-28: Today, we added four Kratky method Buttercrunch Lettuce seedlings to our hydroponics laboratory here at myhydrolab.com. We are expecting that we will have four heads of lettuce large enough to eat within 30 days – on or around 2018-05-28.

Materials List

1 – Hefty 18 Quart Storage Container (available at local big-box hardware store whose name rhymes with “goes”)
About 4 gallons of nutrient solution using General Hydroponics MaxiGro
4 – 2 inch net cups
4 – 2 inch net cup covers
4 – Buttercrunch lettuce seeds
4 – 1.5 inch rockwool cubes

I started the seeds in rockwool that had been soaked in the nutrient solution. Our water here usually has about a 7.6 PH and, once the nutrient solution is added using the recommended dilution, it drops the PH down to about 6.5. The seeds only took a few (maybe three) days to sprout but I did not have time to put them in the container until today.

There is about four gallons of nutrient solution in the container. There is just enough solution so that the bottom of the net pot is submerged about 1/4 inch. This should allow all of the plants’ roots to hit the solution before it has dropped below the bottom of the net pot.

Using the Kratky method, there should be no need for additional electricity beyond the lights and temperature / humidity control. To the right of the container, you can also see I have another two heads of Buttercrunch lettuce growing in a small fish tank.

Update 2018-05-05

Update to Kratky Buttercrunch Lettuce

Update to Kratky Buttercrunch Lettuce

Update 2018-05-28 – Harvesting!

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