Karen (UR) > Variables and Changes Made >>>

At Dr. Woodalls suggestion I researched (or tried to) the amount of Nitrate in Pig/Hog manure as that's the on-going research being done in North Carolina.  That didn't go well !  Apparently, there is no consistent data. There's ALOT of data, but it all depends on the age, sex, feed type and if the sow is pregnant or nursing, not to mention where the farm is located.
So with that said, I have changed my IRP to accommodate my crazy schedule, I'll be out of town so I won't be able to monitor the Nitrate level every 48 hours.  This means that I will be testing once a week (Thursdays).  As close to the same time as possible (6pm). 
On April 10 I brought the Nitrate level up to 4.4ppm in all 4 culture dishes.  This is approximately 3 times the initial amount of 1.76ppm.  I added to the liquid mixture due to evaporation/transpiration:  70ml to the control dish and 80ml to the 3 with the plants.
So far the duckweed is alive and well !!

Looking Good