Invincible urban management

Due to the huge difference of 24 times in time velocity between the two space-times, it is still the evening of July 7st in the modern world, but in Mexico in the 31th century, another brand new dawn has already ushered in.

"-drip-drip--"

Facing the morning breeze, an agricultural three-wheeled electric vehicle that should never have appeared in this era was honking its horn and bouncing along a path paved with sand along the river beach by native Indians.

And a native Indian loli curled up on the rear hanger of the electric car, crying and screaming in fright.

Then, due to the unevenness of the road surface and the carelessness of the female driver, the electric tricycle suddenly swayed and hit a tree on the side of the road with a "bang".Caught off guard, the Indian Lolita slipped on the soles of her feet, missed the guardrail, and flew out with a "plop" in an instant, hitting the female driver's arms, causing the two of them to roll together in the grass several times...

"... Hey, Ma Tong-senpai! You should drive more slowly! This road is not very smooth!"

Wang Qiu, Cai Rong, Wen Desi, and Professor Yang Wenli each straddled their legs and chased after them wheezing.Then there were a few Indian warriors, trotting along and following from a distance.Because they still have to carry heavy burdens, they are all so tired that they are about to foam.

——Because I read from history books that Spanish explorers used war horses to scare Indians who had never seen big cattle, so Ma Tong, who always likes to show off, insisted on riding an electric tricycle in spite of the opposition of others.Little Lolidia, who was curious about this "metal monster", was also tricked into getting into the car by her, intending to enjoy some speedy pleasure in the 16th century.

However, the ideal is full, and the reality is very skinny.

It is about five or six kilometers away from the fishing village where Wen Desi lived to the central city-state, or the capital, where Chief Awaha lived.If the electric car can run at full speed, it may take less than 5 minutes to arrive.

Unfortunately, the roads of the Stone Age are really bumpy, and they cannot be compared with the roads of the industrial age. Even the rural dirt roads of later generations are far inferior. Although the width of the road can be about three or four meters, the Indians just cut it The brambles and shrubs that blocked the road were just covered with sand in some muddy places.In addition, not only was the road surface far from smooth, even the stones were not cleaned up very well.

——The Indians have neither vehicles nor large livestock. Their roads are only used for people to walk, and they have not considered the needs of driving at all.

One more thing to say here is that the civilization of the American Indians has a fatal flaw, not that there are no guns, but that there are no wheels.

The emergence of the wheel has completely liberated manpower and greatly improved productivity.

However, the American Indians did not invent the wheel. Even thousands of years after the birth of civilization, they still only know how to carry it by hand, or drag it with a rope, and use canoes to transport it.

In fact, Indians have had a circular concept for a long time. For example, the Mayan calendar and many handicrafts are round.When transporting boulders to build pyramids, the Mayans also knew to put logs under the stones.In addition, the Indians of most tribes use a horizontal pottery wheel when making pottery, and it becomes a wheel when it is erected.

However, because the Indians did not have livestock such as cows and horses that could be used to pull carts, they never erected the potter's wheel and invented their own vehicles.Horses therefore became a major advantage for Europeans to conquer America.

As for the North American wild horses of later generations, they were all horses lost after the Spaniards landed, and they were repopulated in the wild.

Uh, it seems to be a bit off topic.

In short, due to the poor road conditions, Ma Tong's agricultural electric tricycle rolled over and hit a tree just after driving less than 300 meters from the village entrance.

Fortunately for the misfortune, the two people in the car were not injured except for their disheveled faces.

Therefore, Wen Desi left an Indian warrior in charge of guarding the tricycle, and the others continued to walk obediently.

————————————————————————————————————

After some distance from the coast, the fresh and cool sea breeze gradually disappears.

Passing through the cornfield outside the village, the surrounding area is hidden in a dense green tropical rainforest. The air begins to be filled with a sultry, hot and humid smell, with a faint smell of decay, which makes people involuntarily It reminds me of Huangmeitian in the rainy season in southern China.

The buzzing and flying of various mosquitoes and flies has brought huge troubles to people.

Due to the high air humidity, Wang Qiu, a modern college student who lacks exercise, found himself sweating profusely after walking for only a few minutes.

——Walking in this hot and humid jungle, you can understand why the tropical rainforest is not suitable for human habitation.

Wang Qiu felt a little parched, so he opened the military kettle, poured a mouthful of pure water into his mouth, and then thought silently.

Fortunately, this tropical rainforest is not vast. After walking for less than 10 minutes, there were large cornfields and cotton fields in front of us, as well as small vegetable gardens planted with tomatoes, broad beans, pumpkins and peppers. It looked lush and lush. The growth is very gratifying.

Many Indian farmers who are almost naked, with only a little cloth wrapped around their crotches, are busy in the farmland sweating.Seeing Wen Desi and others coming, they all bent down or knelt down in a hurry, saluting respectfully and saying hello to these "superior people".

The labor tools of these Hongxiutiz dry farmers are very primitive. There are no draft animals, no plow sticks, only the simplest wooden sticks and stone axes-hard wooden sticks with pointed ends, which are used to dig holes in the soil and sow various crops while the stone ax was used to cut down trees, clear the ground, and clear weeds.

In general, their labor efficiency is very low.

To make matters worse, corn is a drought-loving crop, and tropical rainforests are full of rain. If corn is planted in low-lying jungles, the accumulated water in the farmland must be drained from time to time, which increases the amount of labor and yield. It won't be very high either.

Therefore, according to modern standards, the corn yield in this place is pitifully low—according to Wen Desi’s introduction, if calculated according to the Chinese city mu, each mu of corn field here can harvest about 100 kilograms of corn ...And in later generations, most of the improved varieties of corn can easily reach a yield of more than one ton per mu with sufficient chemical fertilizers!

Although Wen Desi has been here for about 20 months, he has no way to conjure a large number of metal tools out of thin air to improve the labor efficiency of these people.As for the technology of building small dams and irrigation canals, these Indians have already mastered it very proficiently, and they don't need his guidance at all.

However, in the previous period of time, he still racked his brains to provide a major innovation for this country's agricultural technology.

——That is soil fertilizer.

Just as Wang Qiu and the others walked slowly through the farmland, they saw several farmers coming towards them carrying a huge pottery jar, and a person next to him was holding a gourd ladle, continuously pouring the pungent turbidity into the farmland. liquid.

Wang Qiu and Ma Tong didn't respond to this, but Cai Rong and Professor Yang Wenli couldn't help but "huh" when they saw this.Professor Yang couldn't help but whispered in his mouth, "...No! When did the Indians have this kind of technology?"

After Wen Desi saw it, he introduced to them quite proudly: "...Ha ha, don't be surprised, I taught them this method of soil fertilizer. In my hometown in the north, due to the price of fertilizer Too high, until the 90s of last century, folks in the countryside were still using soil and chemical fertilizers, so I have some understanding of this aspect.

There are two types of soil fertilizer in our hometown.One is soil ammonia water, its raw materials are fresh cow dung and plaster powder, the ratio of the two is ten to one, sealed at room temperature for three days, and then it can be used after adding water; the other is soil ammonium sulfate, Mix human urine, water, and plaster of paris in a ratio of ten to five to one, seal it for ten days, and then take it out for use.

Because in ancient Central America, there were no livestock except dogs, so I can only try to produce the latter kind of earthy ammonium sulfate.Hey, I didn't expect to succeed once!After spreading it in the cornfield, the yield per mu has been increased by half! "

"...Uh, no wonder the people here are so respectful to you. It turns out that you have come up with such a powerful innovation!"

Ma Tong smiled and punched Wen Desi on the shoulder, and Wang Qiu also gave a thumbs up in admiration—if he had traveled here, I am afraid that he would never be able to achieve such an immediate result. Technological advances come into play.

Think about it, if you can increase the grain yield per mu by half, you should at least have the status of Grand Druid Yuan Longping in society!

"...However, just eating corn as a staple food is probably not good for your health! We brought you a lot of rice and wheat seeds this time, you might as well have someone sow them for a try!"

After thinking for a while, Wang Qiu persuaded Wen Desi again.

——Corn is one of the great contributions of American Indians to the world, and it is also the food crop with the highest yield per unit in the world except sweet potatoes (also an invention of Indians).Moreover, corn is very adaptable, and can grow under harsh conditions such as drought and barrenness. It can be called a hard-core crop that is good to grow and guarantees a good harvest, so it is planted extremely widely all over the world.

But the problem is that the high unit yield of corn has another unfavorable meaning, that is, the nutritional content is insufficient.

The reason why today's corn has become a healthy food is because it can play a role in supporting the stomachs of fat uncles and aunts, and prevent you fat people from excessive nutritional intake.Before the industrial revolution, when people all over the world were generally short of food and clothing, people who ate corn usually had poorer physique due to insufficient nutrition in their diet.

Of course, the high-yielding crop seeds brought from later generations are not without problems.For example, their high-yield attributes can only last for one generation, and these crops are very land-consuming, requiring a large amount of chemical fertilizers that could not be produced in ancient times... However, under the huge golden finger of the time-space portal, the above-mentioned problems Not a problem at all for now.