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MNXR250R

Member Since 27 Jul 2017
Offline Last Active Yesterday, 10:37 PM

Topics I've Started

DWC Bhut and Reaper... pH dropping very fast

17 September 2017 - 12:17 AM

Greetings to All. 

 
I have two separate Deep Water Culture systems running inside of a single 4x4 tent. One of the systems has been a constant chore to adjust the pH (up) from the start (Bhut), and the other system was pretty stable until the last yew days (Reaper). Now both systems need a charge of "pH UP" every day.
 
Both plants were started in Rock Wool and I have not removed them from the initial starting cube. I transferred the two plants from a grow dome into the DWC about three weeks ago.  
 
I'm using General Hydro "Flora Series" in a 5 gallon bucket for each plant. First plant is a Bhut Jolokia and the second plant is a Reaper.
 
My nutes for both plants are the same. I use about 1/3 TAP WATER (for pH buffering) and the remainder is RO water. I mix the nutes and then adjust the pH to 6.0 with pH DOWN.
 
The Bhut required pH adjustments every day (fairly large adjustemts like from 5.4 up to 6.0, while the Reaper only needed minor adjustment once or twice in the three weeks.
 
Today the Bhut is dropping very fast (from 6.0 in the morning to 5.2 in the evening). The Reaper is starting to drop more rapidly but not like the Bhut. Reaper will drop from 6.0 in the morning to 5.7 or 5.6 in the evening.
 
My concern is that I am adding what seems to be a lot of pH UP to keep the system where it should be.
 
Is this normal ?  I have nothing but rock wool and clay balls in the system.... I can't see any good reason for the pH to drop except that the plants themselves are doing it.
 
Any help would be appreciated.
 
Thanks,
 
Jeff

Root heat vs Leaf heat

15 September 2017 - 11:39 PM

I've asked this before, but didn't get a solid answer.... so as we do we ask again.

 

I have read that the temperature of a hot pepper plant (above the roots) can tolerate high temperature (90degF-100degF....100+) consistently, but the root system has to be kept cooler in order to thrive. This condition of course is based on a quality root system.....  Do I have to keep the roots cool in order to have a quality plant when the ambient temperatures are above 90degF ?

 

I'm working on a (tent system) where I totally disregard the temperature inside of the tent. I have the grow medium ( and roots) underneath  the grow tent, where the plant can grow up and into the bottom of the tent. I can keep the grow medium (under the tent) at good room temp, while allowing the plant that grows up and into tent get to a relatively high temp without affecting the root temps. I have to work out the details of the watering.

 

 So my basic question is..... should I spend so much time and effort controlling the soil temperature ?

 

Happy Growing,

 

Jeff


LED heat vs 315W LEC

15 September 2017 - 11:01 PM

This is not really a question from me. It's more of an observation. I'm looking any opinions.

 

Grow tents.... fixtures INSIDE.

 

Two fixtures compared >> An LED fixture (VIPARSPECTRA PAR 700) and a HydroFarm 315W CMh (LEC) fixture.

 

The VIPARSPECTRA PAR 700 specs show that is consumes 326 Watts.

The HydroFarm CMh specs show a 315 Watt consumption.

 

326 Watts vs 315 Watts..... close enough for me.

 

The VIPARSPECTRA is a self contained unit. The Power Supply and drivers  are inside of the fixture. Inside of the tent.

 

The HydroFarm 315W CMh has and "external" Power Supply (Ballast) which can be place outside of the grow tent.

 

Since the VIPARSPECTRA  has all of its internal power sources confined to the fixture, then all of the heat generated by its 326 watts will be introduced into the grow tent.

 

Since the HydroFarm CMh has an "external" ballast which can be placed outside of the tent, then it would seem that the HydroFarm CMh fixture would  introduce less heat into the tent.

 

So far, I have seen that the VIPARSPECTRA LED adds a LOT more heat into my tent than does the HydroFarm CMh setup (external ballast). Not scientific for sure.... so keep an open mind.

 

Happy Growing,

 

Jeff


Year end and disappointed with yield

11 September 2017 - 08:54 PM

Summer is almost gone here in Minnesota. Forecast for the next week is highs in the 80's (F), but the last few weeks have been lower than the average. 

 

I completely rebuilt the outdoor garden this year. I dug out the old soil which I had installed a few years ago. The old soil was supposed to be a "garden mix".  Perhaps it was. I know I have over watered my plants in the past... and more or less killed them all. Tomatoes mostly. None of the plant I had in the garden did well so I thought it was a time for change.

 

I removed the 8 inches of old soil, and dug deeper into the clay (removing some fantastically large tree roots from the neighbors trees)(4 years and the tree roots are HUGE).

 

I dug the new bed to 12 inches, and broke up the clay undersoil for another 6 to 8 inches. Then I added "Kellogs Farms" raised bet mix. Technically by bed is raised... not that that really matters.

 

I even went so far as to cover the garden with a "tunnel". Just enough green house plastic to keep the rain out (so I could control the water), but allow the wind in blow the plants.

 

I thought that this new soil would be excellent for my first year of peppers... as it turns out, that was not the case.

 

I have read a lot about soil in the past six months, and in my amateur opinion my "new" soil didn't have the microbial activity that is normally present in a mature soil. I had to add liquid ferts on a regular interval (yellow leaves).

 

So to the point> 

 

I have one tomato (cherry) that grew like crazy. I'm still getting fruit from this on every day ( hundreds so far)

I have a few varieties of tomatoes that really didn't produce. Some nice fruit but...

Jalapenos. None of the plants (3) grew more than 1 foot tall. Got two dozen or so very hot peppers (high HOT for Jalapenos)... Delicious but expected higher production.

Super Chilis were very productive, but the plants are less than 1 foot tall. Going to have a hot pepper flake for the winter !!

Chi-Chien were good, as were the Shishito and Corno De Toro, but again these plants are very small.

 

The most disappointing of all were the Sarrano and Ploblanos.  I got no more than 8 peppers from the two Serranos, and only two fruits from the Poblonao !!

 

 Minnesota isn't exactly a hot place for sure. This year has been cooler than normal to boot.  All in all, my pepper production has been disappointing.

 

Happy Growing.

 

Jeff


AD's are killing me

02 September 2017 - 01:06 AM

While I understand that making money to support the web sit is important...... allowing adds (Comcast) that completely overtake the site and interfere with my efforts to reply or post is very disconcerting.

 

If this continues I will move on.  I spent too much time scrolling and adjusting the text cursor to reply to texts.

 

Jeff