While the aborigines kept shaking their heads, some tricycles dragged black objects larger than people to the tricycles.

I saw a Chinese man easily lift up the thing that neither of them could hold with his two hands, and then threw it directly into those sewage ponds.

It's strange that something that big can easily float on the water.

It was only then that it became clear that it was a ring-shaped black object, with two thin planks tied to it, and a rope attached to it from the tricycle on the embankment.

In fact, this is the rubber inner tube inside the tire of a large truck, which when inflated is equivalent to an extra-large swimming ring.

Of course, this size of the "swimming circle" is not suitable for swimming, because the excessive volume will hinder the movement of swimming.

However, due to its super buoyancy, it can be completely transformed into a miniature water work platform.

The Chinese man went on to remove a special shelf from the tricycle and installed it on the miniature water work platform, which also had the same sprinkler head as on the embankment, except that the sprinkler was connected to a longer high-pressure hose.

After fixing the sprinkler head in the middle of the plank, as soon as the switch on the shore tricycle is turned on, the sprinkler head washes the underwater mud up close through the annular space in the middle of the inner tube.

By adjusting the direction of the sprinkler head, you can also control the movement of this miniature water working platform in the pond at will by using the reaction force of the sprinkler to spray a high-pressure water flow.

The inlet pipe of the tricycle's sewage pump has been converted into a pond formed in the water, and the reused sewage continuously dilutes the sludge into an organic-rich sewage slurry.

The organic fertiliser is then pumped by another tricycle to the terraces on the nearby hills.

And those terraced fields that have been filled with sufficient water and fertilizer have already met the conditions for transplanting seedlings under the cultivation and finishing of micro-tillers.

As a result, the seedlings cultivated in Huaxia Villa were continuously transported directly from the Yangtze River to the moat of Jiangling City through a mobile water platform.

In areas with large paddy fields, small rice transplanters are used for planting, and some places where the machinery is inconvenient to operate are replanted manually.

Within a few days, the paddy fields reclaimed around Mizusawa had already consumed the seedlings cultivated in Huaxia Villa.

Tens of thousands of acres of hybrid rice, even if no chemical fertilizers and pesticides are used, there are abundant organic fertilizers and sufficient water resources, and the growing environment is not bad compared with the real world.

Even if its yield is only two-thirds of the real world, not to mention 800 kilograms per mu, as long as it can reach 500 kilograms per mu, it can produce more than 5 million kilograms of high-quality organic rice.

If these organic rice are brought to the real world, there is no difficulty in replacing 20 million kilograms of ordinary rice.

As long as there are 20 million kilograms of ordinary rice, it is enough to meet the annual food consumption of 100,000 people.

Coupled with the large planting of drought-tolerant and high-yield crops such as wheat, corn, sweet potatoes, and potatoes in Huaxia Villa, as well as the vegetables and fruits that can be produced all year round, as well as the output of breeding farms, at least when the autumn harvest is carried out this year, Huaxia has the ability to produce food to meet the consumption of 400,000 people.

Moreover, during those slack seasons, Huaxia was not without things to do, and they were fully capable of continuing to cultivate more fields near Jiangling City.

However, the area of this area of the water swamp itself has reached more than 30 square kilometers, and the silt in the water swamp has reached a thickness of nearly three meters in most places, which is not at all able to digest the tens of thousands of acres of terraced fields reclaimed around it.

According to this treatment, if such a large area of Yunmengze area wants to truly become a land of fish and rice, it is impossible to build it without ten or eight years, because the amount of sediment deposited in hundreds of years is completely immeasurable.

Unless, a large number of mechanical facilities can intervene to fill in these low-lying areas with soil and rock.

Only when it is not affected by the floods of the Han River and the Yangtze River can this area become a stable "granary".

According to the situation in the real world, the climatic conditions here can achieve double cropping in a year, and with a two-month buffer time, Wei Minsheng also wants to expand the scale of rice cultivation again.

The seedling base of Huaxia Villa is ready to plant second-season rice, and when the time is ripe, it can raise seedlings on a large scale again.

After observing the situation of Mizusawa in the two cofferdams, Wei Minsheng decided to develop one of the cofferdams first.

This cofferdam is 16 square kilometers, and if it is developed, it will be more than 20,000 acres of high-quality paddy fields.

But now the silt in the two cofferdams is still nearly two meters thick, and machinery and manpower cannot enter.

As a result, Wei Minsheng decided to continue using the previous method, pumping sewage from one cofferdam into another and hoarding it.

Most of the sediment and organic matter will settle down as the sewage containing a large amount of organic matter flows slowly towards the far part of the outfall, and the farther away from the outfall, the clearer the water will be.

In a suitable place, the relatively clear water that has been precipitated is pumped back to the previous cofferdam.

Then, under the repeated washing of the simple water work platform made of car inner tubes, a large amount of silt is continuously carried away.

At the same time, Wei Minsheng also asked people to build a dam on the side of the Yangtze River outside Jiangling City, and the stone used to build the dam was produced from the Zigui Wharf, and the mobile platform was used to go down the river.

A large amount of dry sediment, soil and rock excavated is directly sent to the cofferdam that has been partially washed out for landfill.

These sediments, soil and rocks without much water can not only absorb some of the water in the silt, but also greatly improve the strength of the soil in the water after mixing with the silt, and also increase the height of the water in the cofferdam.

The landfill of soil and rock is pushed in the direction of the intermediate sewage pump from three sides, and the sludge and sewage are continuously compressed to the middle.

After reaching the strength that can be used for mechanical farming, more than 20,000 acres of water in this cofferdam were completely transformed into fertile land.