I Have a Safari Park

Fang Yedao: "Of course, an ecosystem also contains many different food chains!

In addition to frogs, common agricultural animals are various spiders. Some of them build webs in rice fields to prey on flying insects such as rice planthoppers and borer moths. Some spiders do not build webs, and are like rangers on the straw stalks of rice. The leaves are hunting and preying, and the movements are so fast that the flying insects have no time to escape!

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

Not only the flying mosquitoes are their food, but the mosquito larvae in the water are 'ripple' and cannot escape their predation. Rice fields are ideal habitats for dragonflies.

Now there are no dragonflies in our rice fields, but there are frogs. Will dragonflies be far away? Wait for the next round of sowing, maybe it will appear! "

The children exclaimed, "Oh~"

"Sometimes I can see dragonflies near the green belt downstairs!"

"I saw a spider run away when I was cutting the rice just now!"

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

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

A few people in the family, every time the mosquitoes stare at her and bite, and a bite will swell up a big bag, which will not go away for several days.

One summer vacation, I stung my mouth, and my mouth was swollen like a sausage. I had made an appointment with my classmates to play. I was too embarrassed to go out. After staying at home for a week, I felt very uncomfortable.

Fang Ye said: "The underwater world of paddy fields also has many creatures!

For example, fish such as squid and loach, they feed on small insects and the debris of animals and plants scattered into the water.

In addition to avoiding predation by birds such as egrets, they usually need to guard against ferocious carnivorous insects in the water.

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

So many plants and animals, they eat and drink here, grow old, sick and die, produce feces, withered leaves, animal carcasses, these "garbage", the ecosystem in the paddy field can also handle it by itself.

For example, snails, maybe everyone's impression of them is that when you eat seafood barbecue, you take a sip of soup, pick it with a toothpick, and you have a small mouthful of delicious and spicy meat, right? "

The little fat man who was yelling about eating rice dumplings just now couldn't help swallowing his saliva, and the parents couldn't help laughing!

I think of the good memories of catching soft-shelled turtles, loaches, and snails in the fields in my childhood.

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

In addition to the planktonic algae that are hard to see in the rice fields, their food will also eat fallen leaves, clean up the dead animals in time, and prevent them from rotting and smelling in the water, which affects the water quality.

In this process, animals such as dragon lice will also participate, and these "garbage" will become smaller and smaller.

Then, microorganisms such as bacteria and fungi that are difficult to see with the naked eye will complete the final finishing work, reducing organic matter to inorganic minerals, which become nutrients for plant growth and re-enter the cycle. "

Rice, algae, duckweed!

Mosquitoes, planthoppers, borer moths, spiders, dragonflies!

Locusts, frogs, mice, snakes, egrets!

Loach, dragon louse, snail, microorganism!

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

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

If I said this when I was just planting rice, I would definitely feel nothing.

But I personally planted rice in the rice field, planted rice, witnessed the growth of rice, and saw various creatures in the field.

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

The more complex the food web, the stronger the ability to resist external disturbances, and the simpler the food web, the more prone to fluctuations and destruction.

In today's farmland, a large number of pesticides and fertilizers are applied, and animals such as spiders, frogs, and snakes cannot survive, and pests are easy to breed.

Microorganisms cannot survive, and the fertility of the soil decreases but does not increase, so we can only continue to apply more fertilizers, and the soil will gradually become compacted and become an endless cycle.

The rice we plant uses organic fertilizer fermented with animal manure, and no pesticides are used, so it can still thrive.

Of course, the yield of paddy fields with chemical fertilizers and pesticides will definitely be lower, and patience is needed to restore the land to health. With such a large population and high food pressure, it may not be the mainstream production method.

However, such a paddy field is equivalent to a small wetland, providing habitats for frogs, birds and many animals. The increase in species diversity has a positive effect on the improvement of the surrounding ecological environment. "

A parent said in surprise: "President, the yield of this rice is not low at all! I see that the rice is very full!"

Fang Ye smiled slightly, isn't this nonsense!

In addition to the organic fertilizer, when the field was raked, some spiritual soil was mixed in the field. Of course, the rice grew well.

Tang Xiaoxin is very smart, giving an example: "The application of chemical fertilizer is equivalent to taking the test scores as the goal, memorizing formulas, doing a lot of questions, memorizing the answering routines for reading questions, and memorizing the composition template!

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 both parents and teachers care about test scores. "

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

Qian Ma couldn't help shaking her head: "This child is too embarrassed to say that having fun is the most important thing for you!"

Qian Keke refused to accept: "My biological grades are excellent!"

It turned out that the creature has been hovering at the passing line, and now it is close to a perfect score every time, even she is surprised.

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

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

Fang Ye said with a smile: "That's almost the truth. Okay, everyone is about to rest, let's move on!"

The children scattered in a hurry and continued to cut the rice with full energy. There are still about half of them left to cut.

After threshing the millet, it's time to dry the millet!

Fang Ye called the breeder of the small farm to put half a bag of grains in the bucket and dry it.

Today I said that everyone should eat freshly harvested rice. It is definitely not enough to dry in such a short time. Even if the weather is hot and the ground is dry, it will take three or four days to dry.

A small amount is processed by the machine first, and the rest will be slowly dried when the tourists leave.