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« on: November 23, 2023, 11:45:36 AM »
Carolyn, I usually just have a cold water line for watering. The water can get really cold in January (40F), but by then I am not having to water much and then would be just using the water from my dehumidifiers. The Venturi would be for the summer, I’ve realized over time that my containerized plants are both unwatered and underfed during the summer months. I think for optimum growth they need daily fertigation.
This fall I’ve been fertigating weekly with a cheap hose end sprayer whose maximum concentration is still more dilute than I like (tap water 110ppm, with the fertigation 200ppm max). But the growth has been remarkable even with it this dilute.
In the past I only used solid organics as a top dressing twice a year. A alfalfa/verimcompost in January (the alfalfa I supposed to break down over a year), and then a mix of composed fruit peels and vermicompost (potassium rich) in may. I was treating them like in growing plants cause there isn’t much info on containerized culture. All the composting people say the liquid byproducts of compost/vermicompost/bolashi should be thrown away.
The big issue with the solid organics was the fruit flies and fungus gnats, it was crazy. There are basically no flies anymore with the dilute fertigation cause all the chemical energy has been sucked out from the decomposition. The secondary benefit is that the plants are even more happy with the regular dilute feed. I think I should have been thinking about things as a hydroponic setup.
I get about 20 gallons a week of deionized water from a dessicant and compressor dehumidifier. The water is warm and usually plentiful enough when the tap water is just above freezing. Electricity is relatively cheap here (vast hydroelectric reserves).
I will let everyone know how it works out.