Fang Ye said: "Of course, there are many different food chains in an ecosystem!

In addition to frogs, there are also various spiders in the common agricultural animals, some of them build webs in the rice fields, preying on flying insects such as rice planthoppers and moths, and some spiders do not form webs, like rangers hunting and preying on the straw stems and leaves of rice, and the action is so fast that the flying insects have no time to escape!

There are also dragonflies, which are carnivorous insects that can hunt while flying, in addition to catching pests such as moths, they are also mosquito killers in rice fields!

Not only are the flying mosquitoes their food, but the mosquito larvae in the water cannot escape their predation. Rice paddies are an ideal habitat for dragonflies.

Now we don't have dragonflies in our rice fields, but there are frogs, will dragonflies be far away? The next round of seeding may come up! ”

The children let out a burst of exclamation: "Oh~"

"I can sometimes see dragonflies near the green belt downstairs in my house!"

"When I was cutting rice just now, I saw a spider running away!"

Tang Xiaoxin complained: "I really wish there were more dragonflies, I hate mosquitoes the most!" ”

She doesn't know why, but somehow she is very liked by mosquitoes!

There are several people in the family, and every time the mosquito stares at her bite, and the bite will swell into a big bag, which will not go away for several days.

There was a summer vacation to bite the mouth, the mouth was swollen like a sausage, and I had made an appointment with my classmates to play, but the image was too embarrassing to go out, and I stayed at home for a week, and the thief was uncomfortable.

Fang Ye said: "In the underwater world of the rice fields, there are also many creatures!

Fish such as trout and loaches, for example, feed on small insects and debris of animal and plant debris scattered into the water.

In addition to avoiding predation by birds such as herons, they also have to guard against ferocious carnivorous insects in the water.

Beetles such as dragon lice, also known as turtles, are good fishers in the water and swim extremely fast!

So many plants and animals, they eat, drink, lazar, live, old, sick and die here, the feces they produce, the dead leaves that have withered and fallen, the stumps and corpses of animals, these 'garbage', the ecosystem in the rice fields can also deal with it itself.

For example, snails, maybe everyone's impression of them is that when eating seafood barbecue, take a sip of soup, pick it with a toothpick, and take a small bite of fragrant and spicy meat, right? ”

The little fat man who was yelling to eat the pot just now couldn't help but swallow his saliva, and the parents couldn't help laughing!

I think of the fond memories of catching turtles, loaches, and snails in the fields in my childhood.

"The snails are usually hidden in the muddy water, black and inconspicuous, but they are actually scavengers in the fields, hard-working cleaners who deal with garbage!

In addition to the planktonic algae that are difficult to see with the human eye in the rice fields, they will also eat the dead leaves and clean up the carcasses of animals in time to prevent them from rotting and smelling in the water, which will affect the water quality.

In this process, animals such as dragon lice are also involved, and this 'garbage' becomes smaller and smaller.

Then, microorganisms such as bacteria and fungi, which are invisible to the naked eye, complete the final finishing work and reduce the organic matter to inorganic minerals, which become nutrients for plant growth and re-enter the cycle. ”

Rice, algae, duckweed!

Mosquitoes, planthoppers, moths, spiders, dragonflies!

Locusts, frogs, rats, snakes, herons!

Loaches, dragon lice, snails, microorganisms!

The children listened to Fang Ye's narration, and gradually built a three-dimensional picture in their minds.

It turns out that in the rice field, in addition to rice, there are so many creatures, it is simply a colorful small world.

If you had just said this when you were planting rice, you would have felt nothing.

But personally planting seedlings in the rice field, planting rice, witnessing the growth of rice, seeing various creatures in the field, experiencing such a process, and listening to Fang Ye's combing, the understanding is much deeper.

Fang Ye said: "These food chains are intertwined to form an intricate food web.

The more complex the food web, the stronger its ability to resist external interference, and the simpler the food web, the more likely it is to fluctuate and destroy.

In today's farmland, a large number of pesticides and fertilizers are applied, spiders, frogs, snakes and other animals can not survive, pests are easy to breed, and pesticides must be used, rats gnaw on crops, and rat poison must be put in, and rat traps are arranged.

Microorganisms cannot survive, the fertility of the soil decreases rather than increases, and more chemical fertilizers can only be applied, and the soil will gradually become compacted, becoming an endless cycle.

The rice we grow uses organic fertilizer fermented from animal manure and no pesticides, and it can still thrive.

Of course, the yield of rice fields will be less than that of rice fields with chemical fertilizers and pesticides, and patience is also needed to restore the health of the land. With such a large population and high food pressure, it may not be possible to become the mainstream mode of production.

However, such rice fields are equivalent to a small wetland, which provides a habitat for frogs, birds, and many animals, and increases the diversity of species, which has a positive effect on the improvement of the surrounding ecological environment. ”

Some parents were surprised: "Principal, this rice yield feels not low at all!" I see that the rice is growing very full! ”

Fang Ye smiled slightly, isn't this nonsense!

In addition to organic fertilizer, when the field was raked, it was also mixed with some spiritual soil in the field, and of course this rice grew well.

Tang Xiaoxin is very smart, and for example: "Applying chemical fertilizer is equivalent to taking the test score as the goal, memorizing formulas, a large number of questions, memorizing the answer routines of reading questions, and memorizing essay templates!"

However, we study not only for exams, but more importantly, to exercise logical thinking, some life philosophies, and literary literacy, which can be used for life. But parents and teachers care about test scores. ”

Qian Keke hurriedly echoed and nodded: "Yes, yes, yes!" Grades are not the most important thing, I am lively and healthy. ”

Qian's mother couldn't help but shake her head: "This kid is embarrassed to say, the most important thing for you is to have fun!" ”

Qian Keke was unconvinced: "My biology grades are great!" ”

It turned out that the creature had been hovering around the passing line, and now it was close to a perfect score every time, and even she herself was surprised.

For students, interest in learning is also a key factor in their grades.

These children in the rice field have such a personal learning experience, and it is estimated that their biology grades will not be bad in the future.

Fang Ye smiled: "That's pretty much it. Okay, let's go about it, let's get started! ”

The children dispersed and continued to mow the rice with great vigor, and now there was still almost half of it to be cut.

After threshing the grain, it is time to dry the grain!

Fang Ye called the keeper of the small farm to put half a bag of grain in the tank bucket and dry it.

Today I said that we want everyone to eat freshly harvested rice, and it will definitely not be dried in such a short time, even if the weather is hot and the ground is dry, it will take three or four days.

A small amount is processed with a machine first, and the rest is slowly dried when the tourists leave.