When Xu Qiuqiu, a doctor of agriculture, opened her eyes, she transformed into a peasant girl who was about to starve to death on her way to escape famine in ancient times. Good news: She's alive. Bad news: The whole family is bare, skinny and sallow, and their only property is a barren mountain land where birds don't poop. My grandparents are partial, my uncles and aunts are weird, and my neighbors think it's a big joke for scholars to farm. Faced with a desperate situation, Xu Qiuqiu calmly pushed up her non-existent glasses: Don't panic, it's not a big problem, we're dealing with professionals. Is the land barren and salinized? For a small matter, first plant legumes to nourish the soil, and then come up with an improved organic fertilizer package. Dry weather and no rain? Don't be afraid, explore water sources and dig big wells, and develop a simple version of drip irrigation technology to make the next village cry. Are pests eating crops? Simple, using pepper water, plant ash, and biological control methods, it is environmentally friendly and efficient, ensuring that pests will take a detour next year. People in the village worship the river god for a good harvest, and Xu Qiuqiu measures the pH of the soil in the fields. The aunt next door relies on experience to predict the weather, while Xu Qiuqiu is building a temperature-controlled seedling greenhouse. The male protagonist and a group of brothers looked at the curved shaft plow and waterwheel she had made, and fell into deep thought: "We... Can we consider changing careers and follow Miss Xu to do agriculture?" Later, the once barren mountainous land became a well-known land of fish and rice, with high-yielding rice, off-season vegetables, sweet and glutinous fruits... Everything. Those who once laughed at her are now blocking the door, just asking for a new seedling she has cultivated. Xu Qiuqiu: Thank you for the invitation. The order has been scheduled for next year. If you want to get rich, you should first learn "Introduction to Basic Agricultural Science".