a question for the potato experts

einstein

Member
Location
Rutland
My first lifted
splitpot.png
rocket have split and cracked . Can anyone explain why
 

einstein

Member
Location
Rutland
thanks everyone. theyre pot grown inside a poly tunnel. definately not frost as the foliage has been fine through april.
The wet and dry scenario is a possibility. Just hope theyre not all like that.
 

CORK

Member
Looks like they went from very dry to very wet in a short amount of time (they swell too quickly for the tuber to adjust). The same thing can happen to tomatoes.

As Spud says, there is a look of rhizoctonia in the scars. Rhizoctonia would show as a kind of a brown netting on the skin of the tuber.
 

Bogweevil

Member
My first liftedView attachment 961434 rocket have split and cracked . Can anyone explain why
My first liftedView attachment 961434 rocket have split and cracked . Can anyone explain why

Stop start growing conditions, I would guess these are in pots in your greenhouse so perhaps you need to check your watering regime and also your min-max thermometer readings during the growing period.

Well done for getting tubers by mid May in Rutland in a cold Spring.
thanks everyone. theyre pot grown inside a poly tunnel. definately not frost as the foliage has been fine through april.
The wet and dry scenario is a possibility. Just hope theyre not all like that.

Try bigger pots so the water levels don't fluctuate so much and finer textured potting compost that holds more water.
 

einstein

Member
Location
Rutland
another pic. it seems like it was just the rocket as the swift are looking good.
Thanks for your suggestions ..the pots are either 5 or 7 or 10 litre .
There growing in coir which has a had a crop before,not pots though.
Watering is fiddly,i do have automatic irrigation but im as worried about getting them too wet as too dry.
Will overwatering be bad for them? the coir is very freedraining and the pots have lots of drainage holes.
Still trying to find the best varietys for pots...it wont be rocket or swift though!!
 

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Bogweevil

Member
10l ought to be ok for one seed tuber, 5 or 7 would be more challenging to avoid intermittent moisture stress. Water to keep moist, never soggy. If coir too free draining consider adding some John Innes soil based potting compost to hold some more water - say 10% by volume. JI will also buffer against nutrient fluctuations. Check your min-max thermometer and ventilate/shade to keep temps 15-25C if possible.
 

LIVE - DEFRA SFI Janet Hughes “ask me anything” 19:00-20:00 20th September (Today)

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Hello, I’m Janet Hughes. I’m the Programme Director for the Future Farming and Countryside Programme in Defra – the programme that’s phasing out the Common Agricultural Policy and introducing new schemes and services for farmers.



Today (20 September) between 7pm-8pm, I and some of my colleagues will be answering your questions about our work including the Sustainable Farming Incentive, Farming in Protected Landscapes, and our test and trials.



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