Reborn in the 60s, starting with going to the mountains and countryside

Introduction: [Era] + [Rebirth] + [Space] + [Single Female Protagonist] Ye Hao was reborn in the 60s in a parallel world. He almost starved to death and opened the Qinglian Xuan Jade passed down from ancient times! Let's see how he lives a carefree life during this famine. While living a good life, he also contributes to this country that is in dire need of development! (If you want to see the protagonist being a lone wolf, starving, and devoid of human sophistication, please leave this book. This book is not suitable. Traveling back in time does not mean starving, nor does it allow the protagonist to play single-player)