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Old April 30, 2013   #1
Stimacked
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Join Date: Apr 2013
Location: Nagano, Japan
Posts: 25
Default Potato growing attempts in Japan

I am about to plant out some of my TPS seedlings. My first attempt at this.

I am thinking of putting some in trenches in rows
others in plastic pots/ containers and
trying some in my cheap hessian sack in cardboard box DIY container method,

I am short of space to use for TPS seedlings so am trying to improvise with containers as usual.

Have read a few comments saying that folks have been unsuccessful in growing large tubers in containers from seedlings. So, I am expecting the same mini size tuber results. Possibly going to try for an Autumn crop with some of the TPS clones hopefully created from some of my seedlings. However, most of the local folk here, don't bother attempting an Autumn crop here.

Frost hit my Autumn potato attempt last October. It was very hot in September, over 30c every day for most of the first few weeks. I put out my cardboard boxes of potatoes Late September I think.

Summer here in Nagano Japan gets very hot in July and especially August and into early September. Temps go up to 35c in the daytime and night temps hover around 20 or so. Unpleasant for people, and obviously not great for Potatoes at all. Its going to be tricky to keep my seedlings going well into the summer.

I planted out 21 Hessian sacks of regular clone potatoes in mid march. I read about a method where you nearly fill the whole sack with growing medium. The potatoes have successfully grown shoots through up 60 cm of growing medium, which surprized me. Having to fend off some freak low night temps, so they are covered again with that plastic fleece stuff. Seems to reduce frost damage somewhat.
These low night temps are putting me off from planting out the TPS I have grown.

Last edited by Stimacked; April 30, 2013 at 01:21 AM.
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