This time, my grandfather stayed at Li Dong's house for a few more days and stayed for a week. On the day she went back, Lu Xiumei packed a big bag of vegetables for the second elder, as well as the arrears to her uncles.

These arrears were all borrowed by Lu Xiumei from her mother's family over the years, although the total amount is not much, but these are life-saving money. After paying off these old debts, the family returned to abject poverty. Fortunately, the vegetables in the space are harvesting again, and the number of cabbages is much higher than last time.

Using the warehouse to turn around, Li Dong transported back a total of more than 1,300 catties of vegetables, mainly radish, accounting for more than two-thirds.

"Dongzi, why is there so much of a sudden increase in today's goods, isn't it usually three or four hundred catties?" Lu Xiumei asked in surprise.

"A-Niang, I have found a new source of goods, and there will be more and more suppliers in the future. Besides, it's the Spring Festival in more than two months, and I want to take the opportunity to earn a little more. Li Dong casually made up a reason.

"But what if you can't sell all the vegetables with so many vegetables?" Lu Xiumei said worriedly.

"Don't worry about this, I've thought about it a long time ago, sell a batch of radishes to the canteen of the textile factory first, that is, make a little less."

Lu Xiumei was relieved after hearing this. In fact, before this, Li Dong had called Manager Zhou, and the two sides had reached a consensus that the price was the same as that of cabbage, and the market price would be reduced by five cents.

In the afternoon, Li Dong rented a tricycle and transported more than 300 catties of radishes to the canteen of the textile factory, selling them for a total of 282 yuan. Before leaving, Manager Zhou also specially instructed Li Dong to get him a thousand catties of vegetables during the New Year no matter what, and the price was doubled. Li Dong saw that the profits were huge, so he agreed.

At night, entering the space, it can be seen that the space has expanded a lot, and the area has almost doubled, and these are the results of Li Dong's experiments for more than a month.

In addition, in the northeast corner, Li Dong dug a large pit with a diameter of 2 meters and a depth of 1.5 meters, which took him three days. The cave was named "Cave of Eliminating Gold" by Li Dong because of its ability to "absorb" metal.

During these more than 30 days, Li Dong experimented with a lot of materials and made detailed records. After comparison, he found that metals including all kinds of ores were the most efficient, followed by various plant fibers, and the worst was ordinary sand and gravel soils. Due to his limited ability, Li Dong has only experimented with some relatively common materials, which are not comprehensive, but representative.

In the case of metals, the rarer the metal, the more efficient it is. Li Dong did a comprehensive experiment with scrap steel, and after analysis, he could come to a conclusion: 100 catties of scrap steel can expand the space by about 10 square meters.

Li Dong is quite satisfied with this conversion efficiency, because there are tens of thousands of ruined cities in the desert, and tens of billions of tons of scrap metal are buried underground, which is enough space for infinite expansion.

Compared with metal minerals, the conversion efficiency of plant fibers is a bit low, and it takes only 2 square meters to expand by 100 catties, which is better than nothing. As for the sand and gravel soil, it is almost negligible, anyway, Li Dong desperately moved hundreds of catties of sand and gravel into the hole, but only expanded by 0.5 cm the next day.

The results of the experiment are obvious, Li Dongjue's future expansion of space will rely on scrap metal, not only the effect is good, but also the stock is large.

In order to facilitate the collection of scrap metal, Li Dong is considering whether he should set up a scrap recycling company. In the last days, due to the lack of materials, waste recycling is still a good business, but the upfront investment is a bit large.

With Li Dong's current net worth, it is definitely not enough. But with the expansion of space, you can grow more vegetables and make more money, I believe that after the Spring Festival, it should be about the same.

Even the company's management candidates, Li Dong has already thought about it, and handed it over to his father Li Dang to be responsible. If it weren't for the compulsion of life, a person like his father who missed home would not have left his hometown for many years to work hard.

Shaking his head, Li Dong temporarily put down the plan in his heart, and the main task tonight is to grow vegetables. The radish land is empty, and with the new area of space, there is no need to worry about the lack of land to grow this time.

Just the day before yesterday, Li Dong took the time to go to the seed store on Wanghu Road to buy a large number of seeds, basically including all the varieties on the market. In particular, he also bought ten catties of forage seeds, which are the more common ryegrass.

Since learning about the law of space expansion, Li Dong has long wanted to get a ranch, and he has been greedy for the huge profits of breeding for a long time. If it weren't for the long breeding cycle, he would have liked to plant all the land with pasture.

To get back to the point, the vegetables that Li Dong plans to plant now are cabbage, after all, the Chinese New Year is only two months away, and the growth cycle of cabbage is very suitable. Moreover, cabbage is a civilian vegetable and the main raw material of pickles, and the market demand has always been strong.

It took more than three hours for Li Dong to finally plant all the vacant land and water it again. Originally, Li Dong still wanted to fertilize, but after his observation, the space soil seemed to be able to absorb nutrients from the ground and did not need additional supplements.

You don't need to be the best, otherwise you will definitely not be able to keep busy when the planting area is large in the future. The only hidden danger at the moment is the irrigation problem, and Li Dong is considering the feasibility of installing drip irrigation equipment in the space.

After the space was expanded, the pool expanded a lot, and of course the water column was also thicker. Because the pool is above the ground, the drop can be used to supply water directly, and all that is required is to lay pipes on the ground.

This kind of drip irrigation equipment is very common in greenhouse planting, and it should be very convenient to buy, but it is also an economic problem. Fortunately, there is not much space now, and I can still cope with it, so I don't need to be too anxious for the time being.

"Dongzi, get up." Annette Lu knocked on the door and said, she bought so many vegetables at one time yesterday, and she didn't sell them for a day, so she couldn't put her mind at ease for a day.

"Here we are." Li Dong rubbed his eyes, he slept a little late last night, and he was really sleepy.

After getting dressed, brushing her teeth and washing her face, the little girl was already eating breakfast, and the white rice porridge was drinking.

"Daguo is a big lazy pig, shy and shy." After saying that, he shaved his face with his fingers and made a mocking motion.

Li Dong didn't care, he reached out and scratched the little girl's nose, she was a big ghost. He took a bowl, took a bowl of multigrain paste from the pot, and ate it with pickles.

After breakfast, the younger brothers and sisters also got up, Lu Xiumei hastily instructed the eldest sister a few words, and set off with the little girl in her arms. Li Dong had already gone to the shop to open the door first, cleaned it by the way, and sprayed a little water on the vegetables to make them look fresher.