"One stone, two stones, three stones... Seven stones..."

When the king came, he ordered all the potatoes planted on the best piece of land to be dug up.

This land has a stream next to it, there is no shortage of water, fertilizer is applied, and it is the most fertile piece.

In this area, Wang Zezhi earlier ordered people to make ridges according to the standard of one acre of land.

So, you don't have to go out of your way to measure, just dig somewhere.

The field they dug is the No. 1 field.

"Ten stones, ten stones..."

The sergeant who was measuring shouted in a trembling voice.

Wei Yunzhong grabbed Song Tongyin's arm in disbelief, and Song Tongyin pulled off one of his beards fiercely when he heard the number ten stones.

Both of them were shocked by this number, and Wang Zezhi was also shocked by this number.

One acre of land can produce 1,888 catties of potatoes, a figure that surprised him.

"Dig deeper, dig deeper, look carefully."

Wang Zezhi became excited, because the yield per mu of buckwheat had really hit him before.

One acre of land is less than fifty catties, so how many acres do the people have to eat to be full.

Now with potatoes, it's different, one acre of land can produce thousands of catties.

Potatoes are also very easy to store, so that ordinary people can have enough to eat if they have three or four acres of land, and it is no problem to take one acre out of five or six acres and hand over the fields.

The soil layer of the first word is deep, the soil is fertile, the fertilizer retention performance is good, the water retention and drainage are good, and there are irrigation conditions.

The No. 1 field is the best cow manure fertilizer, and Wang Zezhi can only produce ten stones if he doesn't believe it.

"Ten stones, seven buckets, four liters..."

The sergeant who measured the potatoes continued to count excitedly in a trembling voice.

"Dig again, find again." Wang Zezhi said as he dug down with a shovel and directly inserted half a potato into it.

"Look, and dig up all these potatoes for me."

The sergeant who dug the potatoes looked even harder, and it was not until he had dug up the field to a depth of one meter that he had dug up all the potatoes.

"Fourteen stones, seven buckets, eight liters." The measured sergeant screamed and reported the final number.

"More than 2,000 city catties, more than 2,000 city catties."

Wang Zezhi howled excitedly, Wei Yunzhong also blushed with excitement and his neck was thick, and the yield per mu was more than 2,000 catties, which was unimaginable.

Song Tongyin was not as excited as the two of them, but frowned and came to the container where the potatoes were measured, stretched out his hand and touched it.

"No, this number is not right, you see there is a gap in the middle, you have to weigh it with a scale."

Song Tongyin's hand was inserted in the gap between the potatoes in the container, and he motioned for the two to come and see.

Wang Zezhi leaned over and frowned as well.

In the Ming Dynasty, the people had fewer scales in their hands, and the scales or the ground were even rarer, and the grain was a bulk commodity, and it was more troublesome to weigh a large number of them, and it was more convenient to measure them by volume.

The units of measurement such as stone, bucket, and liter are all volumetric units used to measure the volume of solid particles such as rice or wheat.

In the case of potatoes, a crop, this unit of measurement is not so accurate.

Song Tongyin proposed to weigh the scale, because the scale is more accurate and the error is small.

"Someone, bring the scales."

Wang Zezhi felt that what Song Tongyin said made sense, so he immediately ordered someone to get the scales.

Wei Yunzhong felt that Song Tongyin was making a bit of a fuss, even if there were gaps in the potatoes, it would be a large output.

Soon someone brought the scale, and the sergeant in charge of the measurement immediately put the potatoes in the basket and began to weigh them.

"Remember, thirteen catties and eight taels, twelve catties and six taels..."

The sergeant in charge of the measurement, weighing one by one, quickly weighed it.

At first, I didn't feel anything, but when the count exceeded 1,000 catties, the hearts of the three of them rose to their throats.

"Fourteen pounds and two taels..."

"How much is that?" Wei Yunzhong took a bite of the foam and asked anxiously. Heyuan Book Bar

"A total of one thousand seven hundred and twenty-eight pounds and eight taels."

"Don't stop, keep going."

Wang Zezhi saw that the sergeant paused, and hurriedly ordered.

"Yes."

The sergeant who weighed wiped his sweat and continued to weigh it.

"Come, bring him water."

"Yes."

The sergeant who was weighing suddenly became more energetic, and he felt that it was worth it to have such a general who took care of the corporal.

Soon, water was brought to him.

He continued to weigh after grunting the cow drink.

Soon all the potatoes in this acre of land were weighed, and after statistics, this acre of land produced 2,187 catties and four taels of potatoes.

Song Tongyin rubbed his eyes, picked up the paper with trembling hands, and shed tears.

"The official is well aware of the people's suffering, and the official has been thinking about how to make the people have enough to eat, and now there is finally a solution.

General Wang's move is meritorious to the country and the people, please accept this official's respect. ”

"Hey, don't worry, it's not over yet.

You see, my A-shaped field has been divided into numbers, and the No. 1 field has been fertilized, and the water source is abundant.

The No. 2 field has no fertilization and abundant water sources.

In the No. 1 field, the land is not fertile enough, and the water source is not sufficient, but fertilizer is applied.

No. 2 field, no fertilization.

C-word No. 1 field, in the mountains over there, the land here is dry and hard and not fertile, it has not been watered, and it depends on the sky for food, but it has been fertilized, and the No. 2 field has not been fertilized.

Let's take a look. ”

Wang Zezhi pointed to the marked pieces of land and explained.

Wei Yunzhong and Song Tongyin are both extremely smart people, Wang Zezhi just said it so simply, and the two of them understood what Wang Zezhi meant.

Wang Zezhi classifies the land because he wants to know how the yield of potatoes varies under different conditions.

If high-yielding potatoes require fertile land, abundant water, and fertilization, then potatoes are not a good food for the people, but a burden.

As for the fertilizer that Wang Zezhi said, both of them understand.

In the Ming Dynasty, there were 11 categories of fertilizers applied to crops, including manure, cake fertilizer, slag fertilizer, bone fertilizer, soil fertilizer, ash fertilizer, green manure, inorganic fertilizer, manuscript straw fertilizer and miscellaneous fertilizer, totaling about 130 kinds.

The Ming Dynasty not only attached importance to expanding fertilizer sources, but also attached importance to the accumulation and processing of fertilizers to improve fertilizer efficiency.

The accumulated fertilizers include miscellaneous fertilizers, manures, cake fertilizers, fire manure, as well as the preparation of manure and the preservation of fertilizer efficiency.

As early as the Spring and Autumn Period and the Warring States Period, China has used the high temperature in summer to make fertilizer the weeds in the field.

In the Ming Dynasty's "Shen's Agricultural Book" introduced another method of making fertilizer, that is, the milk vetch or broad beans and so on are mixed with river mud for accumulation, this method is called "cellar flowers" and "cellar broad beans", and now it is called cellar grass pond mud in the south.

Wang Zezhi called more people to act at the same time, and soon this generation became hot.

"Where's the cupboard, cook?"

"It's coming, it's coming, I'm here."

"Bury the pot and cook a potato feast."

"Okay."

Wang Zezhi has very high requirements for his cook, he requires the cook to take the guy with him at any time, even if he is in the wild, he can immediately bury the pot and cook rice.

At this moment, the cook unloaded the cauldron he was carrying, and then took a large porcelain jar of lard from his horse, and took the potatoes that had been broken by the shovel and began to cook.

"My lord, I'll catch a hare for you."

Luo Cong's eyes were sharp, he saw the grass in the distance flash, and he saw a rabbit.

"Go ahead."

Luo Cong was ordered to catch the rabbit.