On 27 Aug, 14:42, "Alistair Macdonald"
wrote:
Yesterday's message to the group must have gone astray, so to repeat. After
a good crop of Scarlet Emperor last year, this year's has been a disaster -
blossoms failing to set and what was left, deformed. I understand that
runners don't like being sown in the same spot two successive years, but it
is the only free space I have. Is there someway of feeding the plot so that
it receives what it has lost?

Too much nitrogen and therefore your second crop didn't cope. I would
plant winter greens now. But why go against nature? Are runner beans
the only veg you grow? If not you must rotate your plots or you will
fail whatever crop you sow on the same plot year after year (and
increase risk of disease if you haven't done so). There's nothing to
add other than finding another plot for your runners beans next year
or give a break (a season) to that plot.