The next day, Wang Wushun was in charge of teaching the use of rotary tillers.

Since this small rotary tiller is relatively simple to operate and not fast, as long as the inclination is not large, there are roads everywhere. You only need to control the forward, backward, steering, and lifting and lowering the rotary tiller.

In just one day, the more than 20 students basically mastered the operation of the rotary tiller.

Looking at the weeds and the soil chopped into pieces by the blade, Wang Wushun said to everyone: "On the first day I learned to operate this machine, the master warned me that these things, if used well, are a great help for people, but if they are not used well, they may become disasters for people." You have to remember that safety is the most important thing in the machine, and in front of these machines, the human body is not much harder than these weeds. Therefore, the person who operates the machine must see the six ways and listen to the eight directions, and any abnormal situation and sound must be highly valued to avoid the destruction of the machine and the death of people. ”

Everyone looked at the rotary tiller with teeth and claws, and thought it was.

The next day, I learned some basic knowledge of agricultural planting in the electric classroom, especially in fertilizer, which fully reflects the teaching method of combining theory and practice.

After learning how to make compost and manure, the manure, plant ash, biogas residue, ditch sludge and other things in the mountain village were cleaned up and transported far away by electric tricycle, and different organic fertilizers were made according to different proportions, some were used for base fertilizer, some were used for top dressing, some were used for vegetables, and some were used for fruit trees.

Tie Zhuang was now completely immersed in this rich agricultural knowledge, and he never imagined that this seemingly simple farming could play so many tricks and contain so much scientific knowledge. In the past, I only knew that I relied on heaven and earth, but it turned out that this land could also be transformed by manpower.

The more they studied, Tie Zhuang and the others felt that the more knowledge this agricultural technology required, and the types of food that they had never heard of before were dazzling.

In particular, the high-yield grain made more than 20 students crazy.

"What's so strange about your rice that yields 1,000 catties per mu, look at this corn, the yield per mu is nearly 2,000 catties!"

"Is 2,000 pounds a lot? Look at this thing called pumpkin, the yield per mu is more than 3,000 catties! ”

"What other potatoes with a yield of more than 4,000 catties per mu are here!"

"Come and see this sweet potato, it's incredible, the yield per mu can reach tens of thousands of catties, oh my God! Isn't this full of grain? ”

"This loofah may have the highest yield per mu, right? In the greenhouse that the teacher said, if water, fertilizer, gas, and heat can be guaranteed, the highest yield per mu can reach 15,000 catties! ”

"If you count the greenhouse, this cucumber is the king of the yield per mu, you see, the harvest keeps going all year round, and the highest annual yield record is 40,000 catties."

……

After the excitement, more than twenty people gradually calmed down, and there were shocked looks in their eyes looking at each other. No wonder this Huaxia Villa says that there is no shortage of food, if according to the output of these grains, let alone thousands of acres, that is, more than ten acres of land, it is enough to ensure that the more than 2,000 people in Zigui City will not starve, are these really the food of the gods?

Looking at the shocked faces of those students, Wang Shuangming said: "What you just saw is only the highest yield per mu of these grains, which is a limit that this grain can reach at present, and due to the emergence of a new planting technology called 'three-dimensional planting', the yield per mu is likely to increase exponentially." However, this technology has extremely high requirements for facilities, and it is necessary to ensure different water, fertilizer, gas and heat conditions for different grains, which is too difficult for us now. Even the highest yield per mu you see now requires a lot of planting knowledge and careful care, and if you plant a large area, it is good to be able to achieve the highest yield per mu of seven achievements. ”

"Seventy percent is a lot! The yield of tens of thousands of catties per mu is something that we couldn't think of before, but now it feels like a dream. ”

"Study hard! In this villa, there is knowledge that you will never learn in a few lifetimes. Our master once taught us not to be greedy, this knowledge is the accumulation of thousands of top talents in all walks of life and the accumulation of lifelong experience, and no one can master all this knowledge. In his lifetime, it is good to be able to do the best cultivation of several kinds of food. ”

"Teacher, do you mean that we can only pick a few kinds of grain to grow?"

"It's not that you can't learn, but can you finish it? You used to plant the grain, and then you could reap it. Master, the methods of planting these grains are different from your previous ones, and these methods are sometimes meticulous down to when to apply what fertilizer, and how to deal with any abnormalities in the grain crops. It may not be easy for you to understand all the water, fertilizer, gas, and heat needs of several grains at different growth stages. ”

After listening to Wang Shuangming's words, the students below fell into deep thought, yes, not to mention anything else, that is, the composition of the fertilizer, what is the content of nitrogen, phosphorus, and potassium, and the role of each element in each stage of crop growth, it is not something that can be mastered in a short time, not to mention the impact of other trace elements on crops.

According to the information that Wang Shuangming showed everyone, the best way to fertilize is to first test the various components in the soil, and then according to the demand for various elements of the food crops to be planted, analyze and calculate the most suitable proportion for crop growth, which is called formula fertilizer.

I asked the teacher, and the teacher said that chemistry is a more complex subject than this crop cultivation, and I don't know how to calculate those molecular formulas if I don't learn mathematics well.

There are also those detection machines, even Wang Shuangbao feels a headache, because Wei Minsheng told him that these testing equipment often needs tens of thousands of Huaxia coins to be exchanged, and some even need hundreds of thousands of Huaxia coins, the most important thing is that if you want to operate these machines, you need to have a considerable understanding of chemistry, mathematics, physics, botany and other disciplines, otherwise you don't know how to improve the results of detecting soil.

Wang Shuangming finally sighed and said: "I really don't know who can study the various stages of a food crop's life so thoroughly." According to Xiaobao, there is also a grafting technique for fruit trees, which can even produce several different fruits on one tree. Sometimes we even suspect that these techniques are immortal arts, which originate from the Nine Heavens. But the master never said his origin, and said that there are no gods in this world at all, and it is better to ask for God than for himself. But if there are no gods in this world, where do these incredible machines and food come from? ”