Alan looked proud, and pointed to the road next to him helplessly:

"If you drive on this road for two hours, you see all the farmland mine, and it's pretty much the same. ”

A worker wearing a sunhat next to him also complained: "Our side is low-lying, and when it rains, water will pour into our side." ”

As Dean Ebo listened, he felt a tingling in his scalp, and he realized that this was not an isolated case, but a very common situation, and that all low-lying areas, as long as there was a little standing water, it was not conducive to the nesting of yellow lynxes.

"Isn't it possible to use underground sewers and electromechanical drainage?" said a professor behind him.

"None of the farms in our state have built underground drains. Alan explained.

In the south of New Europe, because there is more rainfall, there is a supporting underground drainage system, but in the northern state of Ohio, there is not much precipitation, so only the surface drainage system is provided.

When everyone heard this, they all felt a little helpless.

Only Su Huai squatted on the ground, looking at these corn fields, and felt a little strange, how could it be different from the fields in his impression?

How is it completely flat?

Su Huai began to search for relevant knowledge in his mind, and soon got the answer.

"This problem is very easy to solve, as long as you use the Chinese ridge tillage method. ”

"What kind of dragon cultivation method?" Not to mention the farmer Allen, even Dean Ebo was stunned when he heard Su Huai's words, obviously he had never heard of this term.

Su Huai explained: "The ridge tillage method is a method invented in China to plant crops in horizontal and vertical rows...... Keep a certain distance between the ridges, so that the lighting is even, and the ventilation conditions will be good......"

Alan listened to this young Chinese man who didn't know where he came from, and couldn't help frowning:

"Isn't this the same as the spacing method we use now, which was obviously invented by Europa......"

Dean Ebo also helped Su Huai to relieve the siege and said: "This is still inconclusive, the history before the catastrophe is still being studied." ”

Su Huai pointed to the field and said: "You do separate the space according to the proportion, but it cannot be regarded as a ridge cultivation method, because the mystery of the ridge cultivation method also lies in increasing the height of the ridge and forming a natural ditch between the ridges." ”

Saying that, Su Huai used his feet to push the soil on the ground a few times, so that the soil was concentrated at the root of the corn stalk, and Ren Na also went up to help, and in a few minutes, the soil in the open space was pushed to the roots of the corn stalks on both sides, and a natural ditch was formed in the middle.

It's just such a small action, Allen and the other people on the farm didn't understand it, but several agricultural experts around Dean Ebo saw it with a light in their eyes and said in surprise:

"It's a good way~~"

"That's smart!"

"This way you can avoid flooding the nest. ”

Dean Ebo squatted down, observed it carefully, pondered for a moment, and exclaimed softly:

"It's really an ingenious way, such a height difference, which is more conducive to the ventilation of the roots of the crops, so that the roots will not rot, and more importantly, it is convenient for irrigation ......."

As he spoke, he turned his head to look at Su Huai: "Mr. Su, this ridge cultivation method should be coordinated with the pool." This reminded him of the ecosystem of the mulberry fishpond in Su Huai.

"No need for pools. Su Huai smiled:

"You only need to pile up the soil into a field stalk on the periphery of the farmland, and if there is standing water, the periphery will naturally form a ditch, and when the weather is dry, you only need to dig a small hole in the ridge, and the water outside the ridge will flow into the field, flow through the ditch between the ridges, and penetrate into the roots of the crops......

When the farmer Allen heard this, he couldn't help but exclaim: "My God, isn't that to save a lot of electricity and loss for our machine watering~!!"

In modern agriculture, the biggest expense is actually the cost of electricity and agricultural machinery loss.

Although the primitive irrigation technique of ridge tillage does not seem to save much, for the cultivation of plains like New Europe, which is often endless, the savings of any small link are statistically huge.

Su Huai held a folding fan to block the dazzling sunlight and said:

"In ancient times, the Chinese people used this method to keep the stagnant water in the relatively low-lying ditches on both sides of the crops during heavy rainfall, so that the crops would not be soaked and rotten, and the water could be stored in the dry season, so that unless there was a major drought or flood, the agricultural harvest was guaranteed. ”

Saying that, Su Huai squatted down and raised his hand to gesture at the neat corn stalks:

"What's more, because the water in the ditch will be the accumulation of chemical nutrients, and after the crops are harvested every season, the field will be ploughed again, and then the ridge will become a ditch, and the ditch will become a ridge ......."

Professor Tian couldn't help but exclaim when he heard this:

"Oh my God...... That is to say, although the fields are planted every season, the specific ridge of the land is actually fallow in turns, which can greatly ensure the geographical advantage!

As soon as these words came out, Dean Ebo and the others were stunned, they looked at Su Huai looking at the field, and the handsome side face, at this time, an indescribable feeling surged in their hearts.

The ridge tillage method that Su Huai casually said not only solves the problem of nesting golden ants in front of him, but also solves the problem of pesticide pollution accumulation, which is the most troublesome problem in organic agriculture, which is of great help!

And Su Huai ...... He didn't seem to realize the significance of the ridge cultivation method he just mentioned!!

Dean Ebo was excited, trying his best to control his heaving breathing, and asked in a slow voice:

"Mr. Su, is this really your ancient Chinese method, who invented it?"

In China, ridge tillage is a concept ingrained in every farmer's mind, and it is very common in Su Huai's view.

But when did Europe understand this? It was the 17th century!!

That is, the Age of Discovery! Europe learned from Asia during the exchange of Eastern and Western civilizations!

In the catastrophe, this opportunity was lost, and then the era of mechanization came, and European and American agriculture entered the era of great mechanization, and naturally this direction was not studied.

This is also because in this time and space, no one knows how to plough the ridges.

Su Huai thought for a while, shook his head and said: "I don't know, this is in Huaxia, this thing is like I don't know who invented the wheel, but I think the ridge cultivation method should not have been invented by a certain person, but accumulated through the experience of many generations in Huaxia, and there is no specific history book that records it." ”

Speaking of this, a message popped up in Su Huai's mind:

However, according to Joseph Needham's History of Science and Technology in China, this date should be later than the 6th century BC. ”

Dean Ebo and the others all looked at each other and wanted to ask, "Who is Joseph Needham?"

But they all held back, and each had a "Oh, it was Joseph Needham" expressions on their faces, as if everyone knew.