Early on, it's about family matters, and later it becomes about the daily life of farming and living in the mountains. The space isn't that large; it can only store supplies, grow vegetable...
However, straw returning machines are all diesel-powered machines, so Lin Momo didn't buy one back then.
However, a thought suddenly struck her: she remembered how her grandfather would chop straw or hay into small pieces to feed the cattle when her family raised cattle in the past. They could buy a chaff cutter, chop the straw manually, and then spread it into the field. That would solve the problem.
It's been about two years, and the amount of work isn't too large.
You probably can't buy a guillotine. I remember in operas and movies, the famous Judge Bao used a guillotine to execute criminals.
There is a play in traditional Chinese opera called "The Case of Chen Shimei".
It seems that Grandpa Lin had a guillotine at home, which he used to process feed for the mule he kept.
This method is good, but it's a bit laborious. However, it's worth a try.
It seems that humus is still the cheapest, and it's everywhere in the mountains and forests. Of course, she won't just take advantage of one forest; after she's done her fair share of the nearby forests, she'll go elsewhere to get more.
Lin Momo would never stoop to such a path of depleting resources.
Another idea is crop rotation.
There are only twenty or thirty acres of land in the small valley, which is too much for her and Shiguang to cultivate alone. Taking turns cultivating the land gives the soil time to rest and recover.
You can also plant green manure in fallow land and then turn it into the soil.
Legumes that fertilize the soil can also be intercropped.
Lin Momo knew of green manure plants such as milkvetch, alfalfa, rapeseed, and peas, and these seeds should not be hard to find in this era.
Green manure is not a product of modern agricultural development. As early as before Christ, people knew how to "weed and fertilize the fields." Green manure crops were planted in every dynasty, so the history of using green manure is quite long.