At this time, the supply team led by Ao Bai also encountered a great problem, due to the increase in the amount of labor, the amount of food is also surprisingly large, you must know that this is 80,000 people eating with open stomachs, the consumption of food is really amazing, and the food stored in the imperial city of Harba has basically run out, according to conservative estimates, it is only enough to support half a month. As the saying goes, before the soldiers and horses move, the grain and grass go first, if even eating becomes a problem, how can the common people still have the heart to work? Thinking of this, Ao Bai hurriedly ran to the master to complain to him.

Tang Sanzang blinked his eyes and suggested: "Isn't there a realm as big as the Eagle Sorrow Stream, and there are still few aquatic tribes in it, let's catch fish and eat it." ”

Ao Bai almost knelt down, sweating profusely and explained: "Master, didn't you see, we have all eaten fish for three days, and if we continue to eat like this, I estimate that everyone will collapse." Besides, no matter how prosperous the Eagle Chou Stream Water Tribe is, it can't stand the fierce eating and drinking of 80,000 people. According to the most optimistic estimates, the Water Tribe in the stream is only enough for everyone to eat for a few months, and as a member of the Dragon Palace, I really can't bear to see the Eagle Chou Jian Water Tribe captured and killed. ”

Tang Sanzang pondered for a long time and nodded: "That's right, it's true that you can't eat and eat nothing, and in the absence of a large amount of water supply, it is almost impossible to increase grain production, so let's dig a pond to raise fish." ”

Ao Bai spread his hands and replied helplessly: "Master, we have basically tried the method you said, but the ground is full of sand, and the water that has just been put down is instantly sucked dry. ”

As soon as he heard this, Tang Sanzang immediately understood, the feeling that the country of Hara is pure sand, no wonder the soil is so poor, in this way, not only can we not raise fish, but even digging ditches to divert water has become a problem. What can I do about this, the archmage is worried, and he hollows out his thoughts.

After a long time, Tang Sanzang patted his head and decided, then let's use cement to build a ditch, I have seen people stir cement to build houses, use lime slurry together with yellow sand and stones, and what comes out is cement, I heard that this kind of cement is of high quality, and it can be used to build houses.

As for the lime mines, they are everywhere on Shepan Mountain, and when they are dug out and soaked with water, what precipitates is lime slurry. Anyway, now that the iron ore is enough, the task of finding the lime ore naturally falls to Wukong and them. I heard that Wukong and the others greatly despise the master's task arrangement this time, and everyone can dig a big mine at their fingertips, and the lime mine is dug as soon as it is dug up, isn't it overkill? The mining team can make several boatloads of lime ore every day when they go up the mountain, which can be regarded as a proof of their strength.

It is best to use clay to make cement, and I heard Ao Bai say that the silt at the bottom of the Eagle Sorrow Stream is of high quality, and it is best to use it to make cement. So, Sanzang handed over this task to Ao Bai, and he led people to the bottom of the Eagle Sorrow Stream to dig up the silt. In view of the fact that the people of Harba are all landlubbers, and the bottom of the eagle stream is deep, the holy monk thought of a way to solve this problem, so that everyone weaved hundreds of large nets with dense eyes, and Ao Bai dived into the water to load the silt into the big net, and when it was finished, it was enough for people to pull the net onto the boat.

For this reason, Tang Sanzang, who was extremely picky, made an exception and rowed five boats to Ao Bai, and asked him to organize a dredging team of 300 people to salvage the silt near the shore of Yingchou Stream. Each ship had a crew of sixty, thirty paddlers, ten lookouts at the helm, and the remaining twenty at the helm. The machine for pulling the net adopts advanced pulley technology, no matter how large the net is, no matter how deep the water, it is more than enough for 20 people to operate. Ao Bai dived under the water alone to carry out the mud loading operation, he was an impatient, wielding a huge shovel specially made by blacksmiths to shovel mud for his life, often loading a ton of silt in five minutes, and two ten-ton ships in an hour. Tang Sanzang repeatedly warned him to pay attention to rest, but Ao Bai always smiled, and still went his own way, desperately scooping mud.

In order to prevent Ao Bai from being exhausted, Tang Sanzang gritted his teeth, stomped his feet, strictly trained 2,000 soldiers to adapt to underwater skills, and developed a set of simple diving devices for everyone to use. This simple diving device is designed in such a way that an empty wooden barrel and a large stone are attached to the diver, and the diver is connected to the large ship with a long rope around his waist, and in case of danger, the diver throws away the stone on his waist and quickly floats to the surface with the buoyancy of the barrel, and the crew can also pull the person in distress onto the boat through the rope. Each diver has a long bamboo tube in their mouth, which makes it easier for them to breathe underwater and increases their staying power in the water.

In this way, 2,000 soldiers easily completed their training and joined the dredging operation. In view of the fact that each soldier could work underwater for half an hour at a time, Tang Sanzang divided these people into two groups, one group to carry out operations, one group to rest on the ship, and rotated every half an hour, so as to ensure that they could carry out operations without interruption.

With the addition of these two thousand soldiers, Ao Bai's homework burden was greatly reduced, and Tang Sanzang also changed his mission in time to let him patrol underwater to ensure that everyone could operate safely. Ao Bai has carried out inspections with great diligence and has not let a single danger happen so far. In this way, the efficiency of the dredging force was greatly increased, and a steady stream of silt was exported, which piled up on the west bank of the Eagle Sorrow Stream.

After the two major materials of lime and clay are equipped, Tang Sanzang will not worry, the country of Hara is full of yellow sand, and the snake mountain is full of stones, which is really ready to use. He was also blinded by the principle of making cement, and everyone soon saw the magic of the legendary cement, which was a puddle of mud when it was wet, and when it dried, it was as hard as iron, and it was perfect for repair. Everyone admired Tang Sanzang's erudition and strong knowledge to the ground, and the holy monk was able to create such a magical thing, which was really a blessing from God.

When the cement is ready, we begin to formulate a specific plan for excavating the canal: after digging the sand, fill it with clay and stones, so that they can be combined with the sand, so that the stability and pressure bearing capacity of the sand can be well guaranteed, and effectively prevent the sand from subsidence, and then pour cement into the clay layer, completely isolate it from the sand below through the cement layer, even if you inject more water, you don't have to worry about being absorbed by the sand.

As for the fixation of the sand on both sides, it is more troublesome, because the sand is very fluid, and it is often difficult to lay stones and pour cement on this basis. The most ideal method that Tang Sanzang could think of was to turn sand into soil and let the sand lose its fluidity, so that he didn't have to worry about not being able to fix it, but this method was really time-consuming, at least after more than ten years.

In this regard, Sun Wukong put forward his own opinion, directly inserting stone slabs on both sides of the sand, and the fixed stone slabs can effectively stop the flow of sand. Ao Bai further refined this idea, we first fixed it with barbed wire, and then poured cement on top of it, so that the scattered barbed wire could be connected and effectively prevent sand from leaking through the cracks. The two apprentices saw the wisdom of the benevolent and the wise, and came up with such a wonderful suggestion, which made Tang Sanzang deeply proud.

With cement, the problem of fish farming in sand has been solved, but the food problem is still severe, because even if ponds are dug and fish farming is developed, and even thousands of people can be separated to grow grain and go up to the mountains to catch wild meat for breeding, but all kinds of measures cannot produce a large amount of food in a short period of time to solve the problem of food shortage.

It is difficult for a good woman to cook without rice, Tang Sanzang is at a loss for this, if a country has no food, it will not be able to achieve anything. He tried countless ways to solve the food problem, but they were all vetoed. There is no fast food in the world, and it takes a lot of time to produce food, but the problem is that everyone will starve to death before the food grows, and everyone has nothing to do about it.