After Li Lin finished explaining the methods and measures for growing corn, he took out a corn cob, tore open the husk, held it up and asked his classmates,"Look at this corn cob, why are the corn kernels flat?" The students were stunned. Looking at it blankly, I don’t know why?

Li Lin said:"Students! In order for corn kernels to grow on the corn cob, it must be pollinated before corn kernels can grow.

This corn cob looks like this because it has not been pollinated well.

So, below I Let me tell you about the fourth issue on how to grow corn scientifically, which is how to ensure artificial pollination of corn."

Some students felt strange: 'All corn needs to be artificially pollinated? But never heard of it! Li

Lin said:"If an ear grows on the top of the corn, each small bag on the ear will be wrapped with pollen.

When the corn cob grows many beards and the weather is fine, the pollen on the ear will fly away with the wind. The pollen will fall on the ear. The pollination process is completed on the beards spit out from the corn cob.

If it encounters rainy weather, pollination cannot be completed, so the corn kernels like the corn cob I hold in my hand will be deflated.

Plant pollination is the same as animal fertilization. A truth."

Upon hearing this, the students felt that what Teacher Li said was very reasonable.

A curious student asked:"Teacher Li! Why do farmers grow corn kernels every year regardless of whether they pollinate them or not?""

"Generally speaking, it is autumn when corn is about to mature.

At this time, the weather is mostly sunny, and the autumn air is crisp! pollination will occur normally.

In rainy weather, the corn cannot complete the pollination process during the pollination period. Just like the corn cob I hold in my hand, the corn seeds are shriveled, and there is even no harvest.

We rarely encounter this kind of year in Yunnan"

"That’s right, thank you Teacher Li!"

"good! Now I will focus on what to do if there is rainy weather?

This requires artificial pollination. The method is to use thick cardboard to make a trumpet-shaped pollinator with empty ends.

As soon as the weather clears up, gently cut off the strong ears with scissors, then put the small mouth of the pollinator on the beard of the corn cob and shake it gently, and the pollination is completed.

But we must seize time, hurry up, and finish it as soon as the weather clears.

This will ensure that the corn kernels are full that year and have a good harvest.

That’s all about how to grow corn.

Students, please organize your notes carefully. If you don’t understand something, you can always ask me.

By the end of the semester, all the agricultural knowledge we have studied will be tested and it is a major subject in our school. After Li

Lin finished speaking, He Yu came to the stage and emphasized:"What Teacher Li said was very comprehensive, detailed and vivid."

Teacher Li prepares the lessons carefully and carefully, and asks the students to carefully organize their notes. If you don’t understand something, you can ask Teacher Li at any time.

At the end of the semester, there will be an exam. The exam content not only tests theoretical knowledge, but also tests labor operation skills.

Those who fail the exam must take a make-up exam.

Those who still fail the re-examination will not be issued a diploma.

However, students, don't be anxious. As long as you study seriously, the teacher will help you make up the lessons, and everyone will be able to successfully complete their studies and pass the exam.

During the entire process of Li Lin's lecture, Qian Kaiyuan was secretly eavesdropping.

When he heard that Li Lin actually said that the shriveled corn cobs planted under his guidance were caused by workers not being allowed to perform artificial pollination, he was furious!

There are so many corn fields on the farm that it is impossible to carry out artificial pollination.

He took what Li Lin said out of context and wrote down two charges in his notebook. The first was to propagate and instill in students the idea of ​​small-scale farmer economics and oppose the use of chemical fertilizers; the second was to talk about plant pollination in front of male and female students on the podium. Just like animal insemination, very vulgar, vulgar and shameful!

It’s really:

I don’t know how to pretend to know half a bottle of jealousy, and I take other people’s lectures out of context.

Scientific knowledge was described as obscene and secretly memorized in front of accusations

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