Someone once said: spring planting, summer busy, autumn harvest, winter storage.

In Shen Nong's memory, in the past winter, the entire ancestral land of the Huangqiu tribe would be covered with a thick layer of 'white jacket' by heavy snow, and when a person stepped on it, it was immediately a hole that did not reach the calf, which was not only difficult to walk, but also easy to frostbite his legs.

It can be said that the cold season is more painful than the dry season, and many newborn children or children born in the cold season can easily be frozen to death in this season, without the hope of surviving to see spring.

Therefore, everyone also calls the great cold season the winter of death.

In addition to the severe winter in the cold season, there is another place that makes people feel miserable, and that is the food problem.

When the cold season arrives, everything sleeps, plants are either frozen to death or covered in snow, and animals are harder to find than usual, and it is even more difficult to find food.

In this case, in order to prevent their tribesmen from starving to death in the cold season, young and strong men and women will go out to look for and collect food, and then bring it back to the tribe to store, as much as possible, in case everyone can survive the cold of this winter.

At that time, Shen Nong was worried that the growth cycle of some vegetables would be too long, so that they could not be ripe for harvest in the cold season, so he planted crops such as potatoes, sweet potatoes, and taro that grow fast and can be harvested before the cold season comes.

These crop seedlings are all Shen Nong himself personally took the people out before, and it took a lot of time and energy to find them, it can be said that it is not easy, if these three crops can be planted in the Huangqiu tribe in the future, then the Huangqiu tribe will not need to worry about food even if it is bitter in the future.

And because he is currently in a primitive era, when Shen Nong first found these three plants that looked very similar to potatoes, taro, and sweet potatoes, he didn't dare to really confirm whether they were the three kinds of food that he knew in his impression, but then he brought these three crops back to the tribe and ground them into mud and fed them to a cow to eat.

After confirming that animals and humans would not have side effects or threaten their lives when they ate this food, Shen Nong was completely relieved and officially planted these three crops in the tribe.

Maybe these three crops are not potato taro sweet potato, or other families of potato taro sweet potato, but the taste is similar, and the most important thing is that it can be used as food.

And when all the crops in this farmland are ripe, the Huangqiu tribe can at least harvest about dozens of catties of food, which can be regarded as replenishing the food reserves in the tribe and preparing for the arrival of the cold season in advance.

After wandering around the farmland for a few laps, Shen Nong nodded with satisfaction and turned around and walked towards the big cave.

......

In the big cave, there are abundant materials piled up, including animal skins, animal bones, animal tendons, stones, and stone weapons......

Food, such as meat, berries, and vegetables, was kept in clay jars and hidden in cellars.

Shen Nong ignored these materials and walked directly to the depths of the big cave, the first thing that caught Shen Nong's eyes was ten loess No. 1 parked on the side of the road, and then four loess No. 2 cars went deeper.

Since the war with the eel tribe, all these heroes have been parked here, because there is no war, they have also lost their role, and can only be silently dusted in this place where there is no light of day.

"Judging from the current situation of my Huangqiu tribe, it is definitely impossible for you to go to the battlefield again, but don't worry, I've been quite idle lately, and I just have time to help you transform and transform, so that you can still make a contribution to my Huangqiu tribe. Shen Nong stroked the body of a Loess No. 2 and said.

This Loess Chariot series was a temporary work he made at that time to deal with the Mud Eel tribe, and the main purpose was to pursue a lethality that can be done with fewer enemies, as well as simple handling performance, in both of which Loess 1 and Loess 2 have achieved.

Both of them can be regarded as the pioneering works of the Loess Chariot series, providing the foundation and infinite possibilities for other models of chariots in the future.

Don't look at Shen Nong's usual leisurely days and he doesn't do much work, but there are a lot of ideas in his mind, and there are also some more feasible ideas that are carefully studied and conceived in a more in-depth manner.

For example...... Loess No. 3 and Loess No. 4.

There is a way to kill the enemy thousands of miles away, although Shen Nong does not require that it must be thousands of miles away, but at least there must be a range that is farther than the firing distance of the spear launcher, so that the Huangqiu tribe will have a longer distance to kill the enemy.

For example, trebuchets......

The trebuchet is a very famous force structure weapon in ancient times, its projection distance is recognized by everyone, if the catapult mechanism can be made, and then installed on the base of a Loess No. 2, then Loess No. 3 was born.

For Loess No. 4, Shen Nong wanted to make a more versatile chariot, such as a built-in folding and assembled wooden ladder, which can be used as a tool for climbing high places, and a built-in intestinal tube and pressure soft membrane suction head, which can be used to fight fires.

If conditions permit, Shen Nong even wants to make the size of Loess No. 4 bigger, and then configure a gear transmission group for the front and rear wheel axles.

At present, Loess No. 1 and Loess No. 2 share a gear transmission group with the front and rear wheel axles, which is equivalent to two people turning four wheels together, and if it can be improved to let four people turn four wheels, the speed of the chariot will undoubtedly be doubled, and the efficiency is still very considerable.

Shen Nong once thought about making the Qi side van invented by Qi Jiguang, but because of the process and some other problems, he finally gave up this idea, after all, people still have to consider the reality of the situation, the road has to go step by step, and the meal has to be eaten one bite at a time.

Of course, if the Huangqiu tribe can really make a partial van when they can make it, then they can really be regarded as invincible on land. After all, this thing was a land killer in the Ming Dynasty, let alone in the primitive era, and the power of the partial van was unimaginable in front of a group of primitive people who could only use spears and knives.