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Write Please more detailed information about your culture method, usually grow like crazy

So, green plant fertilizer is not optimal, because it contains not so much potassium and phosphorus, tomato fertilizer is better positioned.
You water them every day you write, but it is then dried off or always wet? Too much water is not good

If your bulb is the size of a golf ball and this is in a 30-40 cm pot and you water these tägich, it's clearly much too wet.
13-14 cm in any case are necessarily take an expensive Earth which has a good structure - and definitely the pot size adapt to the tuber in the case sufficiently.
I go out of it, that the guy has continuously too wet and more or less flooded - therefore he is also not really grow.

Fertilizer is important - but only fertilize when the blade is fully open. But what fertilizer is important now for konjac no soooooooooo. NPK ratio should be approximately 1-1 be-1.5 - then hauts already out.

Konjac is not much to do. There goes even cheapest DIY Earth. You should take but a bit more permeable. For example with perlite, sand or pine bark / bark mulch

Then set the plant out in the full sun.
Fertilize the plant should be weekly. Then she puts to good in size. Fertilizer dominated by p is ideal. You need the increased P share for tuber growth. I use Universol yellow (12-30-12)

Otherwise, Wuxal 8-8-6 Super is a good option.

In principle, there are only 3 things:

-Porous, high-quality soil
-much are therefore directly fully sunny Sun,
-properly give stressed fertilizer P.


Once dry the pan. Shouldn't be a problem but in full sun.

Sometimes it is, but also genetic, that which is not increasing. I also once had a tuber that has become not just bigger in the above conditions. On the contrary. Sometimes it was even slowing down.

MfG
Stephan

That shouldn't be a problem. Out put. The Sun and the wind do the rest.

If the plant previously was in the apartment and was to see already the blade, you should only put it in the shadows and get used to the Sun. Directly from the flat in strong sunlight is very bad for the leaves. Then just burn.

That should but include 1 x 1 of gardening, you know that.

My konjac stands on a terrace in full sun on the South side of the House. There she gets off all day full sun, without burning. There will be other causes with friends.