Pleurotus ostreatus grows and writes a composition.

1. I like mushrooms very much. They are white and tender. All I know is that they are fungi. I've always wanted to see for myself how mushrooms grow. Ha ha! This is what I want. My fourth uncle told me that mushrooms are actually very easy to raise. Put them in a damp place and just spray some water frequently.

I put the mushroom culture medium in the bathroom, sprayed it with water and watched. Ah! I found that the small mushrooms were squeezed out from the edge. I thought little mushrooms grew from the middle! I looked at the little mushroom with great interest.

The next day, I found that the little mushrooms grew a lot. Hey! I thought little mushrooms would grow and grow like flowers. I didn't expect to grow so big overnight! Some are like straw hats, some are like umbrellas, some are like flowers, some are like budding flowers and bones … What a surprise!

Two days later, I found that one bag of mushrooms grew up a lot, while the other bag of mushrooms turned yellow and dried up somehow. Later, I learned that it was because there was less water sprayed on it, and the temperature and humidity could not keep up with the demand of mushrooms.

2. The composition of Pleurotus ostreatus is 500 words.

Everyone must have eaten oyster mushrooms at the dinner table. Does it taste good？ Today, I carefully read the biology textbook of junior high school and found that this Pleurotus ostreatus turned out to be a large edible fungus. So how did it grow? Hee hee, my aunt's mother-in-law has been planting edible fungi in the countryside for more than 20 years. It happened that the old woman came to menstruation's house, so I seized the opportunity to interview as a small reporter.

I asked my grandmother, "How did Pleurotus ostreatus grow?" Grandma kindly answered my question: "There are many steps, please listen to me one by one." Then she introduced in detail: planting Pleurotus ostreatus mainly needs four raw materials: cottonseed hull, bran, lime and gypsum powder. Drying cottonseed hull with these raw materials for 1-2 days, then mixing other raw materials together, stirring evenly, adding water, standing for a whole day, and then bagging.

I immediately had a question: "Is it a big sack?" When I asked, I suddenly realized that it was a heat-resistant plastic bag the size of a thermos. To sterilize hundreds of plastic bags in a sterilization furnace, it is necessary to maintain the high temperature of 100℃ 10 hour or more, preferably up to 20 hours, and then the work is cooling. After completely cooling, put these small bags into a sterilization box one by one, and finally inoculate Pleurotus ostreatus seeds and let them grow for about 30-40 days. When the hyphae grow all over the bag mouth, you can spray water to cultivate Pleurotus ostreatus. It takes about half a month for a batch to end. I have done so much preliminary work and the growth cycle is so short that I have to admire the perseverance and hardship of the growers. I was very surprised. This is a complicated process. Fortunately, I took notes on the spot. "Who knows that every grain of Chinese food is hard?" Never waste food, but know how to cherish the fruits of farmers' labor.

3. How to write the mushroom growth diary as the observation diary of Pleurotus ostreatus, which is a kind of Pleurotus ostreatus. The growth process is similar. You can refer to:

/kloc-Friday, October 20th Weather: The sun is on holiday. Today, my mother came home and mysteriously opened the paper bag and took out two wood-like things for me to guess. But I looked left and right, and when I looked up, it was all wood fragments! There are many irregular white spots outside the wood, wrapped in transparent plastic bags, and there are some small water droplets inside, which may be wet! Some black sawdust stuck to it and looked dirty and ugly. Seeing my disgust, my mother told me that this is not rotten wood, but a mushroom stick made of cotton seed and sawdust, with hyphae in it. As long as I take good care of it, it will grow my favorite mushroom. I looked at it with a grain of salt, and it turned out that this ugly guy was called a fungus stick. /kloc-weather on Wednesday, October 25th: There are some snowflake sticks floating in the air. I like dark and humid environment. I put them under the kitchen sink. Untie the bag every day and replenish water with a small watering can. Today, I suddenly found something about two millimeters white on the top of the bare fungus stick, like a small white coral. Oh dear! It's not that I sprayed too much water, and the fungus sticks are moldy, is it? I quickly checked the relevant information online, haha! It turned out to be a small mushroom that just grew, but why is it white? /kloc-Friday, October 27th Weather: The smog is coming again, little coral, no! When a small mushroom grows, it needs to open the bag and cut off the excess plastic paper around it, so that it can breathe fully and grow freely. However, to keep the stick moist, spray water three times a day. This morning, I saw that the top of the originally white "little coral" turned into black with the size of a small grain of rice, and some of them seemed to be gradually changing and grayish brown. Lower your head and smell, ah! The smell of mushrooms intoxicated me. /kloc-weather on Monday, October 30th: The sun finally came out. These two days, mushrooms grow very fast. Although I often forget to spray water because I am lazy, it does not affect its growth speed at all. The whole kitchen can smell the fresh fragrance of mushrooms. In the past, the little black spots also grew to the size of a dollar coin, looking like a group of warriors wearing black hats, resisting the dry air. Those dark brown mushrooms are just like walnuts that have just been peeled off, which makes people drool and want to take a bite at once. Weather on Sunday, February 5: The shy sun is hiding. Today is a good day, with a bumper harvest of mushrooms. A few days ago, the mini black hat became the size of a fist. The top of the mushroom turns gray-black, the middle color is light gray, and the edge color is dark and close to black, like dark clouds floating in the sky. The mushroom is slightly concave in the middle and the surface feels smooth. A faint frost makes mushrooms look more fresh and attractive. It was time to harvest, so I dragged them with my left hand. Today's dinner is a mushroom feast.

4. Write a composition for the first grade of primary school, and use it to write a short sentence "Ah! I found a secret! " Listen, you must want to know what secret I found. Don't worry, let me tell you slowly.

After dinner that day, I washed my hands in the bathroom. Suddenly, I glanced at the mop in the corner.

What I saw surprised me very much-there was a ball at the junction of the stick and the mop cloth. I quickly dried my hands, squatted down beside the mop and observed carefully, and gently plucked the ball with my hand.

Ah, there is a thin stem under that ball. I looked at it carefully. "ah!" I can't help screaming.

The so-called "ball" is a small mushroom, and there is a small mushroom on the mop! I can't believe my eyes. I took a closer look. That's really a small mushroom, shorter than my little finger.

It may be because the thin stem can't bear the pressure of the mushroom head and has been covered by bending. If you don't dial it by hand, it is hard to find that it is a mushroom.

Like a furry ball lying on a mop. So cute! After confirmation, I hurried out to publicize to the whole family: "important news, important news, mushrooms grow on the mop at home!" " "Just say that finish, my parents looked at me with strange eyes. I told them everything I saw just now and dragged them to the bathroom to see the "magic" mop with mushrooms.

Mom and dad didn't just talk after reading it. Mom said, "Oh, nothing. It has increased several times. You just don't know. "

Suddenly, my father asked me, "Tingting, do you know why mushrooms grow on mops?" Now you have me. I'll check east and west right away.

Finally, I found it in "100,000 Why" and replied: "It may be because mushrooms are grown by a microorganism, which will grow into mushrooms under appropriate conditions. Mop, often wet, placed in a dark corner, the bottom of the stick will rot, which is in line with the growth conditions of microorganisms, so mushrooms will grow at the junction of the stick and the cloth! This is the same as mushrooms growing in the grass after the rain. "

With these words, I took a long breath and looked at my father with expectant eyes. Q: "Am I right?" Dad nodded approvingly at me and said, "Yes!" Also increased a lot of knowledge.

I am so happy, because I found the secret of mushrooms growing on the mop and understood the truth. In fact, science is around you and me. As long as you carefully observe and think positively, you will certainly find many interesting things and taste the joy and happiness of discovery.

5. How to write a diary of mushroom growth to an observation diary of Pleurotus ostreatus, the growth process is similar, you can refer to it: 1 Friday, October 20th, weather: the sun is on holiday. Today, my mother came home and mysteriously opened the paper bag and took out two wood-like things for me to guess, but I looked left and right, and both of them were pieces of wood! There are many irregular white spots outside the wood, wrapped in transparent plastic bags, and there are some small water droplets inside, which may be wet! Some black sawdust stuck to it and looked dirty and ugly.

Seeing my disgust, my mother told me that this is not rotten wood, but a mushroom stick made of cotton seed and sawdust, with hyphae in it. As long as I take good care of it, it will grow my favorite mushroom. I looked at it with a grain of salt, and it turned out that this ugly guy was called a fungus stick.

/kloc-weather on Wednesday, October 25th: There are some snowflake sticks floating in the air. I like dark and humid environment. I put them under the kitchen sink. Untie the bag every day and replenish water with a small watering can. Today, I suddenly found something about two millimeters white on the top of the bare fungus stick, like a small white coral. Oh dear! It's not that I sprayed too much water, and the fungus sticks are moldy, is it? I quickly checked the relevant information online, haha! It turned out to be a small mushroom that just grew, but why is it white? /kloc-Friday, October 27th Weather: The smog is coming again, little coral, no! When a small mushroom grows, it needs to open the bag and cut off the excess plastic paper around it, so that it can breathe fully and grow freely. However, to keep the stick moist, spray water three times a day. This morning, I saw that the top of the originally white "little coral" turned into black with the size of a small grain of rice, and some of them seemed to be gradually changing and grayish brown. Lower your head and smell, ah! The smell of mushrooms intoxicated me.

/kloc-weather on Monday, October 30th: The sun finally came out. These two days, mushrooms grow very fast. Although I often forget to spray water because I am lazy, it does not affect its growth speed at all. The whole kitchen can smell the fresh fragrance of mushrooms. In the past, the little black spots also grew to the size of a dollar coin, looking like a group of warriors wearing black hats, resisting the dry air. Those dark brown mushrooms are just like walnuts that have just been peeled off, which makes people drool and want to take a bite at once. Weather on Sunday, February 5: The shy sun is hiding. Today is a good day, with a bumper harvest of mushrooms. A few days ago, the mini black hat became the size of a fist. The top of the mushroom turns gray-black, the middle color is light gray, and the edge color is dark and close to black, like dark clouds floating in the sky. The mushroom is slightly concave in the middle and the surface feels smooth. A faint frost makes mushrooms look more fresh and attractive. It's time to harvest, so I dragged them with my left hand. Today's dinner is a mushroom feast.

6. Ingredients of Pleurotus ostreatus I usually like to eat Pleurotus ostreatus because it is delicious, cheap and beautiful. Our family often eats it.

My uncle grows many Pleurotus ostreatus in a house in the country. I have time to see how Pleurotus ostreatus grows today. As soon as I entered the room, I saw a lot of neatly arranged bacteria, rows and rows, from the first floor to the third floor, everywhere. Pleurotus ostreatus grows at both ends of the fungus node. Some leaves are small and tender; Some leaves are very long, like many small fans stacked together. How cute!

I hold Pleurotus ostreatus carefully with two small hands for fear of hurting it. Then break it hard and a Pleurotus ostreatus will be picked. I don't care whether it is big or small, so I picked it up quickly ... suddenly, I picked a lot. Grandma shouted at the back: "don't pick the small one, let it grow longer ... I'll keep picking."

Grandma told me that Pleurotus ostreatus grows fast, just picked it, and they will grow back overnight. Clusters, piles.

Today, I am very happy!

7. How do mushrooms breed? Write a composition. Mushroom growth is hard, no! It is even more cruel. Only by sticking to the end can it be valuable. First put the seed in a dark corner, then pour a spoonful of dung on it, and then leave it to its own devices. The best mushrooms grow in this environment. Isn't steel the same? After high temperature and painful tempering, this is the best steel. Paul, the hero of the article, tempered himself in the raging fire of proletarian struggle, and his brave and meaningless revolutionary spirit became an example for young people and everyone to learn. Pavel Colta King, an ordinary young man, has made extraordinary deeds. When I was a child, I was discriminated against. When I grew up, I lost one eye, two legs, and even my spine was hollowed out by enemy bullets. However, he never gives in, and difficulties and setbacks will always be the soil under his feet. He was seriously ill and blind in the other eye, but he actually picked up the weapon of words and continued to make contributions to the country.

This masterpiece made me realize the spirit that mushrooms never give up. Hawking was terminally ill, but he broke the definition of doctor with amazing perseverance, leaving a deep stroke in the history of science all over the world. Beethoven was deaf, but he didn't give up his career and went on writing. These celebrities have the same spirit, and they have made great achievements by this spirit. There are countless such things, but there are always a group of people who give up on themselves and who can't stand the difficulties and retreat. Those people make everyone feel sorry, and they will never even be noticed, just like the scrap iron and the rotten mushrooms that are rotting in the soil.

"Life is the most precious thing for people, and life is given to each of us only once. A man's life should be spent like this: when he looks back, he will not regret wasting his time, nor will he be ashamed of doing nothing. " Yes! Let the "mushroom spirit" grow with us forever! Don't regret giving up!

8. How do mushrooms breed? Write a composition. Mushroom growth is hard, no! It is even more cruel. Only by sticking to the end can it be valuable.

First put the seed in a dark corner, then pour a spoonful of dung on it, and then leave it to its own devices. The best mushrooms grow in this environment. Isn't steel the same? After high temperature and painful tempering, this is the best steel.

Paul, the hero of the article, tempered himself in the raging fire of proletarian struggle, and his brave and meaningless revolutionary spirit became an example for young people and everyone to learn. Pavel Colta King, an ordinary young man, has made extraordinary deeds. When I was a child, I was discriminated against. When I grew up, I lost one eye, two legs, and even my spine was hollowed out by enemy bullets. However, he never gives in, and difficulties and setbacks will always be the soil under his feet. He was seriously ill and blind in the other eye, but he actually picked up the weapon of words and continued to make contributions to the country.

This masterpiece made me realize the spirit that mushrooms never give up. Hawking was terminally ill, but he broke the definition of doctor with amazing perseverance, leaving a deep stroke in the history of science all over the world. Beethoven was deaf, but he didn't give up his career and went on writing.

These celebrities have the same spirit, and they have made great achievements by this spirit. There are countless such things, but there are always a group of people who give up on themselves and who can't stand the difficulties and retreat. Those people make everyone feel sorry, and they will never even be noticed, just like the scrap iron and the rotten mushrooms that are rotting in the soil. "Life is the most precious thing for people, and life is given to each of us only once.

A man's life should be spent like this: when he looks back on the past, he will not regret wasting his time, nor will he be ashamed of doing nothing. "yes! Let the "mushroom spirit" grow with us forever! Don't regret giving up.

9. Write a 600-word composition about mushrooms, highlighting the characteristics of mushrooms. The National Day holiday is coming, and we returned to our grandmother's house in the countryside.

Grandma's house is at the foot of the mountain, and the scenery is beautiful. It was sunny on the second day of the holiday. My parents and I went to the mountains to pick mushrooms. Because there are mushrooms under the pine tree, we went straight to the pine tree halfway up the mountain.

The sunshine in early autumn is very warm, because it rained just the day before and the air is very fresh. Each of us picked up a stick and walked carefully. My parents used to think I was afraid of danger and never let me pick mushrooms. This year is my first time picking mushrooms, and I am very excited.

When I came to the pine forest, my father told me that mushrooms grow easily in wet grass and pine leaves, so I pushed them aside with a stick and looked for them slowly, and told me to follow them and pay attention to safety. I carefully fingered the grass with a stick as I walked, but I couldn't find it.

Suddenly I heard my father say loudly, come on, here's one. I rushed over. Sure enough, a small yellow umbrella stood on the pine needle leaves on the ground. It's really beautiful. I took it off excitedly and put it in a plastic bag beside me. We walked on, and soon my father found another one, so did my mother.

I am in a hurry. Why can't I find it? I stopped and searched carefully from near to far. Suddenly, an umbrella head leaked from the green moss under a pine tree not far ahead. I found it. I ran over screaming. This is really a ... I picked it up and was about to turn around. I found another one beside me. I turned around and there were a few more. I shouted excitedly. Here's a pile.

My parents hurried over and saw several. Dad says it's humid here and mushrooms like to grow in piles. There should be some around here. Let's find them again.

Sure enough, we found many mushrooms in this small piece, and I also found two other kinds of mushrooms. My father told me that the yellow mushrooms were found first, and the sharp red mushrooms were picked later. This kind of mushroom is more delicious than yellow mushroom, and it is not easy to get worms. There is also a kind of gray mushroom with thin umbrella leaves, which is poisonous mushroom and must not be eaten.

That's great. I not only picked mushrooms, but also learned a lot. Finally, the bag was full and we went home.

At home, grandma praised us for picking up more. Grandma dried the mushrooms and told me to stew them for me next time.

I think it will be delicious, because I picked it myself. Looking forward to that day coming soon.

10. How to write the composition of mushroom? Excuse me, colleagues, are you going to write about eating mushrooms or picking mushrooms?

I will give you the reference materials for the methods and steps of writing a good composition. If you write about the whole mushroom and its shape, you should see the Botanical Art Garden. If you eat mushrooms, you should choose the fruit tree diet!

Plants yiyuan

There are plants in every corner of the earth. There are lush forests on the mountains and endless seedlings on the plains; There are aquatic plants in the river and reeds on the shore; There are forest belts on the roadside and green spaces in the middle of the building; There are potted flowers on the balcony, competing for beauty; There are lawns and green carpets on the football field ... flowers and plants are written, and every grass and tree has feelings.

There are many topics about plants, but how can we write them well? The most important thing is to write clearly the shape, characteristics and growth process of plants. Students begin to practice physics composition, usually starting from plants, because it is convenient for observation and conforms to the principle that composition should start from the things around them.

So how should we observe and describe plants?

First, observe carefully and describe its appearance characteristics in detail.

Observation is the premise of writing. Careful observation of plants depends on the overall shape of plants, the appearance and smell of various parts of plants, such as roots, stems, leaves, flowers and fruits, and its needs for sunlight, soil, fertilizer and water ... but it is not necessary to cover all aspects, but to grasp the part that best reflects the characteristics of plants. In addition, we should pay attention to the development of association and imagination when writing, and skillfully use rhetorical devices such as metaphor, personification and exaggeration.

For example, the following passage:

Under the sunshine, the Chinese rose is painted with a layer of bright oil. Smooth and bright. The whole flower branch held its head high and was bathed by the sunshine mother. There is a yellow stamen in the center of the flower, and the top of the stamen is stuck with pollen, which gives off an attractive fragrance, so it often attracts swarms of buzzing bees and beautiful butterflies.

Second, try to personalize the description of plants and pay attention to writing your own feelings.

When we describe plants, if we can personalize plants, we can make the flowers and plants in our works have the ideological and quality characteristics of tasks, so that the articles written will be interesting. When we describe plants, we should also write about the changes of our thoughts and feelings about plants and describe their characteristics with our own feelings. That article will be more interesting.

For example, the following passage:

In spring, poplar shoots out new green, showing a new green. After a spring rain, the leaves are covered with crystal dew, as if countless lives are shaking.

In a word, the observation of plants only writes perceptual knowledge, which can not achieve the purpose of comprehensive understanding of plants. We must find out its characteristics through analysis.

Fruit and vegetable diet

Writing articles on food covers a wide range. You can write about vegetables, fruits, snacks, specialties and so on. Generally speaking, two points should be paid attention to when writing such articles: one is to highlight the characteristics, and the other is to write feelings.

First, highlight the characteristics.

Grasp its color, shape, taste, etc. To describe it, so that what is written will leave a deep impression on readers.

For example, the following passage:

Generally, the epidermis of pomegranate has two colors, one side illuminated by the sun is red, and the other side facing the sun is pale yellow. Peeling off the epidermis, you can see ruby-like pomegranate grains, put them in your mouth and take a bite. At the same time, your tongue is stained with red juice.

This writing highlights the characteristics of pomegranate and is very vivid.

This is also a good way to describe the shape and taste of food. Different foods have different shapes and tastes. Grasping the shape and taste to describe in detail can give people a vivid feeling and make people drool.

Second, write feelings.

The things described are generally the specialties and snacks you are familiar with or in your hometown. So write with emotion to express our love. To this end, we can skillfully use some rhetorical methods to make the written articles vivid. It is best to use tasks or examples to win by touching and feeling.

For example, the following passage:

Eating mutton buns is mainly to break the buns. The thinner the buns, the better. It is said that the steamed stuffed bun is very finely broken and the taste can enter the steamed stuffed bun. You see, the old man with white beard and hair is shaking, but his bun is broken very thin and he looks absorbed, as if he is making a beautiful handicraft. After the steamed stuffed bun is broken, send the bowl to the service desk, and soon your mutton steamed stuffed bun will be served. The bowl is full of oil flowers, as well as fat and big mutton slices and slender vermicelli, which makes people drool. Try it, it's delicious! The soup is spicy and fragrant, and the meat is tender and fragrant. No wonder Liu Zongmin, the general under Li Zicheng, went to Beijing to eat delicacies, but said, "Why not have a bowl of Shaanxi mutton bread in soup!"

The article is full of love for hometown between the lines. Although unpretentious, it writes the author's true feelings.