I would expect the water in each air-exposed reservoir to be much the same, maybe slightly lower, than air/room temperature, which is what you have. I'd further presume your medium/soil temperature is also in the expected, normal range - somewhat cooler.
What has you concerned here? Everything looks good enough.
What has you concerned here? Everything looks good enough.
- Joined
- Sep 15, 2016
- Messages
- 27,273
- Reputation
- 20,276
- Reaction score
- 110,502
- Points
- 0
- Currently Smoking
- Dabs of Rosin.
Higher temperatures and lower oxygenation are contributing factors in hydroponics root rot. Here is a quote from a long winded study:
Concentration of dissolved oxygen in the nutrient solution is a critical factor influencing root rot and crop productivity (14, 38, 88, 120). In general, root rot increases when oxygen levels are low (14). Gases move to and from roots of plants in many types of hydroponic systems chiefly by mass flow of gas dissolved in moving solution, which contrasts with diffusion through gas-filled pores as occurs in soils.
www.scielo.br
Warmer reservoir temperatures reduce the dissolved oxygen holding ability of the water. The thing is you have good dry back in that system and this oxygenates the roots and helps prevent root rot. When I ran DWC I always used Botinicare HydroGuard in a hotter environment than you are dealing with and I never got root rot. It would not hurt to add it to your res.
Concentration of dissolved oxygen in the nutrient solution is a critical factor influencing root rot and crop productivity (14, 38, 88, 120). In general, root rot increases when oxygen levels are low (14). Gases move to and from roots of plants in many types of hydroponic systems chiefly by mass flow of gas dissolved in moving solution, which contrasts with diffusion through gas-filled pores as occurs in soils.
Etiology and epidemiology of Pythium root rot in hydroponic crops: current knowledge and perspectives
The etiology and epidemiology of Pythium root rot in hydroponically-grown crops are reviewed...
Warmer reservoir temperatures reduce the dissolved oxygen holding ability of the water. The thing is you have good dry back in that system and this oxygenates the roots and helps prevent root rot. When I ran DWC I always used Botinicare HydroGuard in a hotter environment than you are dealing with and I never got root rot. It would not hurt to add it to your res.
Yes, "Higher temperatures and lower oxygenation are contributing factors in hydroponics root rot." But I don't think air temperature and feed water temperature in the 80˚F range is high, anything to be concerned about with AutoPots, while water temp. is critical with DWC. If AutoPots (with their air-exposed reservoirs) did not work well in this rather normal indoor growing temp. range, if they were associated with root rot, we'd all know that already, it'd be common knowledge.Higher temperatures and lower oxygenation are contributing factors in hydroponics root rot. Here is a quote from a long winded study:
Concentration of dissolved oxygen in the nutrient solution is a critical factor influencing root rot and crop productivity (14, 38, 88, 120). In general, root rot increases when oxygen levels are low (14). Gases move to and from roots of plants in many types of hydroponic systems chiefly by mass flow of gas dissolved in moving solution, which contrasts with diffusion through gas-filled pores as occurs in soils.
Etiology and epidemiology of Pythium root rot in hydroponic crops: current knowledge and perspectives
The etiology and epidemiology of Pythium root rot in hydroponically-grown crops are reviewed...
Warmer reservoir temperatures reduce the dissolved oxygen holding ability of the water. The thing is you have good dry back in that system and this oxygenates the roots and helps prevent root rot. When I ran DWC I always used Botinicare HydroGuard in a hotter environment than you are dealing with and I never got root rot. It would not hurt to add it to your res.
Last edited:
Similar threads
New Grower
1st Auto Grow (dwc)