Dutch Passion Dutch Passion Auto Euphoria with Dutch Pro Autoflower nutes

Thanks for your reply hydrobeeny. Going to start writing some of this down. I have not updated this recently so will try and put some pics up tomorrow. The plant is about 120cm tall now and is a bit squashed in the corner of my tent. Will be glad when my ultimate is ready so I can give the euforia a bit more light. It looks quite similar to my ultimate and I think given room will give just as large a yield. I think you are right with the 85 and 100 days. All the plants I have grown so far have been harvested after 80 days. Never reached 100 mainly cause of lack of smoke and worry about mould issues. The 21degress at night. I know mine is def dropping below that at lights off.
 
OKOK. Fed 2 litres solution at pH 6.9. Run off was 7.3. Presume this means soil pH is rising. Still got a few weeks before flush so will lower pH of nutrient solution a bit.
 
Hey Trip :)

Looks like somethings gone a bit squiffy with the PH reading! :s

I see you've done some calculations, which look good! By your readings today the soils gone up to 7.7.

It's a bit strange that over a month your soils gone form 5.6 to 7.7. That's quite a huge jump! I would suggest maybe checking the calibration on your PH meter, or maybe it's gone mad?

Quite a lot of the soil guys (staff helpers) are using an Accurate 8 probe and swear by it! (Never used one myself - but Muddy and Waira recommend!)

Maybe worth checking out for the next grow - they're only about $40

Hope you get things sorted!

:Sharing One:
 
Thanks blue. Yes accurate 8 on list for next grow. Also going to add a bit more perilite to the mix.
 
Pics as prommised

2015-03-14-416.jpg2015-03-14-415.jpg2015-03-14-414.jpg2015-03-14-413.jpg2015-03-14-417.jpg
 
OKOK. Fed 2 litres solution at pH 6.9. Run off was 7.3. Presume this means soil pH is rising. Still got a few weeks before flush so will lower pH of nutrient solution a bit.

Tdog Howdy;....

I take it, the two on the right of pic no4 above are DP's Durban Poison" Auto's yes ?? they look heavy weight man, your earlier flushes have payed dividend.

TDog;
If it is tap water you are using. And if it is of a high TDS or in other words high in calcium and other alkaline salts. The plant drinks the water and "Leaves" a lot of the un needed calcium carbonates in the soil, as a residue of hard tap water.

This alkaline salt, then builds up in the soil, over weeks of giving salty tap water to the plant. particularly post wk7-8 if no mid grow flush has been given to lower salts, and un-used nute salts as well.

And as it builds up "calcium Carbonates" and others, the "PH, Potenz of Hydrogen" go up or swings in favor of alkalinity, pushing up Ph of the soil by "Cumulative Accumulation", in the substrate.

Hence, flush at 6.9 and 7.3 washes out. To get the soil Ph down, you need to flush with a stronger ion base, "Acid Base", at 5.6, with "Nitric Acid". Flush with 5.6, then you should get, a run off below the critical ceiling of Ph 7.

You need to keep in these uptake ranges relative to soil Ph. Soil temp not below 20c minimum lights out.

Nutrient to Ph uptake or lockout.gif

Hope is of some help, next run, mid grow flush is a good idea. I flush every 8 feeds, of medium EC feeds. And still a end of veg flush, and a mid flower, as well as the final 10 day harvest flush. That keeps thing on track in the soil. I check run off "Ec" to see how much they are eating as well !!

Automaster.

Ps; my outdoor plants love the high Ec flush water...... they go mental for it !! proof of "Overfeeding"...again !!
 
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