Siheyuan (traditional courtyard house): 52 years of farming, producing hundreds of millions of tons

When Wan Ping'an woke up, he found himself transported to a brothel in the 50s.
Wan Ping'an has no survival skills, and besides, a great famine is about to strike!
Wan Ping'an is very panicked!
Fortunately, I awakened the farming system!
You can get all sorts of rewards just by farming!
[Ding! You have successfully grown one acre of rice. Reward: Eight Extraordinary Skills!]
[Ding! You have cultivated one acre of Feilu (a type of rare plant), rewarding you with a mysterious space!]
………………
A great famine struck, and even birds and beasts were starving to death. Wan Ping'an handed over hundreds of millions of tons of grain!