A brief description of the manga Shounin Yuusha Wa Isekai Wo Gyuujiru! – Saibai Skill De Nandemo Fuyashi Chaimasu:
The main character falls into another world. He was gifted with an unusual “Cultivation” skill. Before that, he was a slave and dreamed of opening his own business. What adventures await him in the new world?
FYI this goes up to chapter 49 where it ends! I haven’t found it anywhere above chapter 24.5 in ENGLISH however!
Fafhreds welovemanga suggestion below works (Japanese up to ending chapter49)
If you read Russian (i don’t) it goes up to end chapter 49 on mangadex [dot] org.
Please, if anyone knows where it can be found in English up to ending chapter 49 I’d sure appreciate it! 
Raws are currently reaching chapter 37 (source: welovemanga.one/785/), but I cannot find any TL past chapter 24.
Lol this is an interesting read, bro has the power to duplicate anything by ‘planting’ it. Mostly just using cheats to make huge profits and save the day with a dash of horny mixed in on occasion. But since it’s been a year since it’s been updated it might be dead 🙁
I read this in English to the end (or near enough), but I cannot tell you where. I enjoyed it a lot until the end, which I found unsatisfying. I did not like the FMC but that didn’t spoil it. It was a fun idea and making good progress before it got the axe and had to rush an ending. I recommend with the caveat that the end disappoints.
Summary: Isekai salaryman gets cultivation cheat and can grow more of anything he plants. Desperately tries to make money without being found out by the summoning kingdom, who only expect vegetables, until he can escape.