seeds germinating but not continuing to grow & yellowing

[benwalters]

re. Bad salt concentration mistake......well spotted yabbies, my bad !


who would have thought a 0 or 2 would matter !!!!

[Yabbies4me]

I reckon the extra zero would matter if it had disappeared off your bank account balance!...

[benwalters]

Yabs, no difference between 00 and 0,
just saying.....

[AReiher]

I have completed the water testing:

Ph = 7.4
Ammonia = 0
Phosphates = 0.25

From my understanding Ph should be between 6-7 and I have already added chelated iron a week ago so it was probably higher??

Ammonia is supposed to be near 0 so that seems okay

Not sure on phosphates...

There are no changes in anything since the first post - oh except that some native rodent got in and ate a whole heap of my lovely sweet potatoes and not sure what to do about the animal...?

Angela

[benwalters]

Hi I think your ph is fine
the other tests that are usually done are nitrate and nitrite
not sure about phosphate testing , I've never heard of anyone testing it
are plants looking any better?
Re. Rodent , best option would be to build it out perhaps
cheers
ben

[AReiher]

Hi Ben
I got the water testing equipment from school where I work - I don't work in the science dept tho but this is what we were using to test the water in our creek - anyway the kit didn't have nitrate and nitrites but I should be able to get that as well - maybe the iron I added will help. Should I add more soon and when? I really can't believe the virtual non growth of what I have sown - I would have been picking by now if I had just sown in pots or the ground.

[benwalters]

Hi angela, I'm not sure what the problem is, if there is nutrient problems use foliar feeding (spray leaves with fert( fish safe)) most people don't sow seeds direct into growbeds, I'd be interested to see how you would go Planting some more advanced plants in growbed
ap systems can take time to operate well, and some crops are not sucessful
all the best
ben

[Yabbies4me]

I reckon the extra zero would matter if it had disappeared off your bank account balance!...

Yabs, no difference between 00 and 0,
just saying.....

Yep!... point taken Ben!

.

Get it?... point taken!... geez I crack myself up...

.

...the decimal point...

.

...okay I give up!...
.

[Rob's Green Thumb]

Well just by looking at your photos the iron you added should do the trick even the older plants were showing signs of light yellowing. You may also have to bump up the amount of iron your useing a bit some types of plants tend to soak up more then others. If your water test come back alright just bump up the dose of iron and see if that dont help as long as the ph being to high isent the problem.
Little extra iron wont hurt anything I use about a teaspoon of it a month on my 10 gallon system thats been running for about a year the fish dont seem to care if the waters a little tea looking and the water will clear up in a month as the plants soak it in I know this because as soon as the water runs clear the leaves start to yellow.

[Jacobtaylar]

That is not good signs that the seeds germinating but not continuing to grow & yellowing. This is one of the bad decedents happens in the growing of plants and need to be cured immediately otherwise will spread in to the other plants.