Interesting article about greenhouse growing and light manipulation.
I’ll have to work on off-grid solutions to keep my nutrient tanks cool and additional ventilation in the hotter periods of the year.
Grindo: Indoor Quality, Outdoor Quantity, Greenhouse Grown
In a greenhouse, you have the ability to cultivate plants efficiently with indoor quality
From <https://ilgmforum.com/t/outdoor-grower-trying-indoor-winter-grow-2019/27458/15>
I’ve used this low tech (off-grid) way of cooling a water bottle by wrapping in wet cloth and then tieing a string to the neck and swing it around and around my head to generate airflow. It does work.
Coolgardie safe
The Coolgardie safe is a low-tech food storage unit for cooling and prolonging the life of whatever edibles were kept in it. It applies the basic principle of heat transfer which occurs during evaporation of water. It was named after the place where it was invented – the small mining town of Coolgardie, Western Australia, near Kalgoorlie-Boulder. Coolgardie was the site of a gold rush in the early 1890s, before the Kalgoorlie-Boulder gold rush. For the prospectors who had rushed here to fin…
It wouldn’t take much effort to adopt such a system to my grow tent. and nutrient tank.
I need to build some kind of lightproof Venetian blind ventilation system and combine it with a fan to get the air moving inside the tent and activate the Coolgardie system.
A man with a plan
From <https://ilgmforum.com/t/outdoor-grower-trying-indoor-winter-grow-2019/27458/15>
Update pictures.
2 males and 2 females. Hopefully, this will give me a stronger genetic mix for the 2 male, 1 fem Kumaoni and my best Jamaican Pearl fem.
A bad case of “end-of-grow-jitters”…
Respect to Professor Kratky.
Non-Circulating Hydroponics can produce a reasonable cannabis crop.
I made a number of mistakes during the grow and will improve and refine my techniques with my next grow.
I de-seeded my dried Komaoni and put the seed husks into a jar for curing.
Not much product.
My next grow will be all female.
On the plus side; I’ll never have to buy seeds again.
I cut and trimmed my Jamaican Pearl. She is heavy with Komaoni cross seeds.
I put 10 of the x seeds in water and paper towels to test for viability and 3 of them not only sprouted tails but tiny green leaves after just 48 hours.
A test for Komaoni Landrace seed germination rates produced 9 out of 10 seedlings which have been planted in soil.
Happy days.
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The Komaoni Landrace Sativa seeds have grown strongly in soil and will provide a benchmark for my second Hydroponics grow.
The taller plants are almost certainly male while the shorter with less node distance is sure to be females.
I know this from my previous grow.
Learning from my first Kratky grow and carrying out much more research has led me to the following conclusions.
- I’m a fecking slow learner and stubbornly stick with a bad plan to the bitter end.
Kratky is a viable method for growing one cycle green leafy plants. However, when growing cannabis the method does need a few tweaks and additions to take into account the two cycles of growth, veg and bloom phases.
Using a pure form of Kratky will produce a harvestable Cannabis crop. The yield will be significantly affected due to poor root growth.
The nutrient temperature must be kept between 18c - 22c (24/7) and the Ph between 5.5 and 6.5
I’m going to try a Kratky + Bubbler system as I believe this will improve root growth and produce a healthier root system and improved yield.
This smart man has published a number of experiments that coincide with my conclusion.
Good luck with your grows.
Follow on to the previous post.
I germinated a Komaoni seed and grew on in a light potting compost about 3 weeks ago. After a week, I transferred the seedling to a Kratky pot with a small bubbler. In just 2 weeks the plant has caught up with the earlier soil planted Komaoni.
Unfortunately, I used a male seed so, he’s going to get chopped.
It’s going to be an interesting few months as I’ve got a few other experiments underway or planned.
Happy days
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I’ve updated my thread at Outdoor Grower TRYING Indoor Winter Grow 2019 - #55 by jackowhee It shows how Kratky + Bubbler can improve root growth.
The soil-grown benchmark has shown remarkable growth rates in a very short timeframe.
The shovel is about 3’ 8" in height.
This means my nine soil-grown boys and girls are far and away the best performers.
