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How shadowing affects crop growth
My vegetable plot is to the north of my house and is shadowed much of
the day from direct sunlight --- house, garage; garden wall, neighbours trees, ... But none of it is under trees or affected by roots. Now (March 19th, with not a cloud in the sky) some of it may get direct sun for only an hour or two, other parts not at all, and about half of it four hours or so. What effect has shadowing on plant growth --- say potatoes, broad beans, carrots? How does do the effects of shadowing compare to the effects of cloud cover --- which, in north-west Ireland, we can expect a lot of? Best regards, Jon C. |
#2
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How shadowing affects crop growth
In article ,
Jonathan Campbell wrote: My vegetable plot is to the north of my house and is shadowed much of the day from direct sunlight --- house, garage; garden wall, neighbours trees, ... But none of it is under trees or affected by roots. I forget the exact figures now, but I found them when writing the climate FAQ. A hell of a lot of the sunlight in the UK is indirect, and so shadowing isn't as important a factor as it is elsewhere. That's in relative terms - in absolute terms, it excludes a lot of vegetables (like ripening squashes, chillis etc.) Broad beans, carrots and (mostly) potatoes won't mind much; you may get a slight smaller crop. Nor will most of the other plants that do well in cool, dark summers. My garden is comparable, for different reasons. Regards, Nick Maclaren. |
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