www.locoworks.com wrote:
> On Jul 5, 9:15�pm, Omelet <ompome...@[EMAIL PROTECTED]
> wrote:
>> In article
>> <c0eb418d-db8f-44ff-98d2-08876c31d...@[EMAIL PROTECTED]
>,
>>
>> �"www.locoworks.com" <videoc...@[EMAIL PROTECTED]
> wrote:
>>> In past posts I bewailed the poor performance of the tomatoes in my
>>> greenhouse, with their leaves turning over and changing to a vivid
>>> purple hue. �All the fixes suggested here had no effect. �I was
>>> distraught.
>>> Today, just after noon, I was in the greenhouse. �I went to check
the
>>> soil moisture by sticking my finger in the pots. �It was moist all
>>> right, but it was uncomfortably hot as well. �The sun beating on the
>>> pots had raised the soil to the temperature of hot coffee (or tea, if
>>> you prefer).
>>> Now, I have rigged some heavy plastic board to shade the pots. �I
>>> await further developments and I will post them here. �Thanks to
those
>>> of you who have kept with me so far.
>> You need to open up more ventilation in the greenhouse, and consider
>> some shade cloth over the roof.
>> --
>> Peace! Om
>>
>> "Human nature seems to be to control other people
>> until they put their foot down." -- Stephan Rothstein
>
> Omelet,
>
> I have considered shade cloth over the greenhouse, but I fear that the
> reduction in sunlight would not be beneficial to the plants, We are
> in a coastal area and have fog and overcast a good part of the time.
> The problem seemed to be that when we do have full sun it raised the
> temperature of the soil in the pots (not the plants) too high.
> Shading the pots seems to be accompli****ng this. I await further
> developments.
>
> There is a large hatch in the roof and one at each end of the
> greenhouse. All three are open and there is no condensation inside.
> The only way to increase the ventilation would be with a fire axe.
Shade cloth is available in a wide variety of percentage filtering, one
does not need to go to 95% shade when 40% will do. I don't know where
you are on the planet but we are fortunate in SA to have such a wide
variety available, and in different colours too.
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