The county magistrate's daughter only wants to farm

"So fast!" Gu Yin had actually forgotten about this matter recently.

Manager Fang didn't know how to answer, so he just smiled and nodded.

Gu Yin pondered for a moment and said, "The rapeseed flowering period generally lasts about one to two months, which means it takes about one to two months from flowering to rapeseed production. It takes nearly a month for rapeseed to mature, but the specific time depends on the actual growth of the rapeseed."

The rapeseed seeds are provided by the system. Judging from the quality of the seeds provided by the previous system, they are far superior to ordinary seeds, and it is not impossible to shorten the growth cycle of rapeseed.

Manager Fang listened carefully and asked, "Miss, when does rapeseed become mature?"

"Well, there's a saying that goes '80% ripe, 100% harvest; 100% ripe, 80% harvest.' Rapeseed tends to crack and fall off when it's ripe, so it can be harvested when it's 80% to 90% ripe."

"The maturity of rapeseed can be judged by the color of the rapeseed shell. When the rapeseed shell turns yellow, it means the rapeseed is mature. However, we cannot wait until the rapeseed is fully mature before harvesting, otherwise a large part of it will fall to the ground and be wasted."

"When two-thirds of the rapeseed husks in the entire field turn yellow-green, one-third turn green, and the husks of the rapeseed in the middle of the main axis turn loquat-colored, it is the best time to harvest rapeseed..."

Gu Yin carefully recalled what she had learned before and explained it in detail to Manager Fang.

"So that's how it is. Now that Miss has mentioned that, I now have an idea in my mind." Manager Fang is indeed an expert in growing crops. Based on what Gu Yin said and combining it with the growth conditions of other crops, he immediately understood.

With such a steward, Gu Yin was naturally happy and relaxed: "Manager Fang, relax. With your ability, if you plant it carefully this time, you will be the first master in Daji Dynasty who knows how to plant rapeseed."

"Thank you for the compliment, Miss. This is all thanks to you. It's because you are generous that I was able to get such a great bargain." Manager Fang said happily.

Manager Fang saw that Gu Yin was easy-going, so he asked tentatively: "I just don't know...what is the use of this rapeseed?"

Although he has been taking good care of the crop, partly because of his curiosity about the new species and partly because he has been doing what his master has asked him to do, there is no reason for him to slack off.

"This...is of great use..." Gu Yin smiled mysteriously.

Seeing Gu Yin's expression, Manager Fang thought he had asked something he shouldn't have asked, and hurriedly waved his hands in panic, "I'm sorry, Miss, I shouldn't have asked this..."

"Tsk, no sense of humor at all, can't you just guess?" When most people see someone being mysterious, don't they all become more curious and ask questions? Why did Manager Fang act as if she was going to fine him...

Manager Fang raised his sleeve and touched his forehead as if nothing had happened, then smiled and said, "Miss, I'm old now, and my brain is not working anymore, I really can't guess..."

"An excuse." Gu Yin glanced at Manager Fang, but he was probably too old to joke.

Gu Yin didn't care and directly announced the answer: "Rapeseed can be used to extract oil."

"Oil pressing?" Manager Fang was startled, and his tone unconsciously rose a few degrees. "The oil you are talking about, Miss, is it edible oil?"

Gu Yin nodded disapprovingly: "Of course you can eat it. If you can't eat it, why would you have so many seeds..."

However, Manager Fang was not as calm as Gu Yin, as cooking oil was a very rare commodity.

Ordinary people do not have much oil and water throughout the year. Most people buy a small piece of fat pork and use it to wipe the bottom of the pot when cooking. A small piece of fat meat can even be used for a month.

"This, this, how much oil can be squeezed out of this rapeseed?" Manager Fang asked stutteringly. If the yield is high, then would the people be able to eat oil?

"The yield of rapeseed per mu is about 500 to 600 kilograms, and the oil yield of rapeseed is about 30%. If the yield of my batch of rapeseed can reach 500 kilograms per mu, based on the oil yield of 25%, then one mu of land can produce 125 kilograms of oil." The yield of rapeseed they planted this time should not be low. As for the oil yield, it is directly related to the method of oil extraction, but it is definitely not as high as in later generations. In later generations, with high technology, it is normal for the oil yield to be above 30%.

But the oil extraction method...

Oil press...

Gu Yin was just about to ask Manager Fang what the oil press looked like, but unexpectedly she saw Manager Fang suddenly stand up from his seat.

He took a few steps towards Gu Yin, his steps seemed to stagger, his eyes widened, and his lips trembled with excitement: "Miss...is this true...?"

"Of course it's true, why would I lie to you?"

"Can one acre of rapeseed really produce more than 100 kilograms of oil..." Manager Fang confirmed in disbelief.

"Well... theoretically, there shouldn't be any problem." Gu Yin was frightened by Manager Fang's attitude and didn't dare to say too much. "But even if it's not 125 kilograms, 100 kilograms should still be fine."

After receiving Gu Yin's confirmation, Manager Fang's eyes suddenly became red, filled with tears: "Miss, you are truly the reincarnation of a goddess, so amazing..."

Manager Fang didn't know how to express his feelings, he only knew that he was in awe of Gu Yin...

"No, no, no, I just did what I could. You sit back first..." Gu Yin was a little at a loss. She was not good at dealing with such situations, and she couldn't stand such praise. "Let me be frank. Even if you praise me as a goddess, I can't give out these rapeseed seeds for free. Anyone who wants them has to pay for them."

"Of course, of course." Manager Fang nodded repeatedly. Being able to buy seeds was already a great thing for the people.

Gu Yin didn't know whether the system would provide seeds again next year, so she planned to keep half for seeds, keep some for herself, and sell the rest to fleece the rich first.

After Manager Fang calmed down, Gu Yin began to ask him about what the oil press in Dajichao was like.

It would be fine if I didn't ask, but if I found out what Gu Yin knew, my hair would be in danger...

In the Daji Dynasty, just like in ancient times, the basic oil consumed by the common people was animal oil, and the rest was generally just a small amount of sesame oil, sesame seed oil, etc.

Therefore, the method of oil extraction here is also very simple. Two large stone slabs are placed up and down, and the processed oilseed cake is hit with a big hammer to squeeze out the oil, and then filtered to achieve the purpose of oil extraction. Of course, the oil yield must be pitifully low.

However, she had seen an oil press when she was a child, but she really didn't know the structure inside...

Gu Yin wanted to cry but had no tears...