I make a popular science video and all the emperors learn from it!

Chapter 27

Qing Dynasty.

Kangxi looked at the light curtain.

found out that it was a crop owned by the Qing Dynasty again, and I lost interest in an instant.

"Don't look at it!".

Kangxi was so angry that he flicked his sleeves.

The reward given last time, the stinky tofu he made, made him disgusting.

Looking back now, I still didn't have an appetite when I ate.

[Popular science continues.] 】

Compared with traditional rice, wheat and other food crops, corn has strong drought tolerance, cold tolerance, barrenness tolerance and good environmental adaptability. 】

[Corn likes light, is not shade-tolerant, and is a short-day plant. 】

[The suitable temperature for growth is 22-30 °C, the temperature for seed germination is 6-10 °C, the temperature for jointing is 15-27 °C, the temperature for flowering is 25-26 °C, and the temperature for grain filling is 20-24 °C. 】

[Characteristics of water and fertilizer demand in different periods: sowing - seedling stage: the amount of fertilizer required is very small, but it is very critical and important, and there must be sufficient and suitable bottom moisture to ensure the whole seedling. 】

[Emergence-jointing stage: At this stage, corn requires little fertilizer and water, and appropriate drought is conducive to squatting seedlings. 】

[Jointing stage - big flare stage: the amount of fertilizer required during this period increases, and nutrients and water should be appropriately increased to ensure the demand for corn growth. 】

[Big Flare Mouth Period - Peak Filling Period: About 1 month, this period is the period of the largest amount of fertilizer and water, especially before and after the silking period is very sensitive, at this time, the lack of fertilizer water will lead to plant malnutrition, weak growth, difficult to extract male pollination, will cause serious reduction in yield, water and fertilizer demand characteristics of different periods of sowing - seedling stage: the amount of fertilizer required is very small, but it is very critical and important, there must be sufficient and suitable bottom moisture, to ensure the whole seedling. 】

【...】

[Main value:].

[Nutritional value: The vitamin content in corn is very high, 5-10 times that of rice and wheat, and the nutritional value and health care of corn are the highest among all staple foods. The high nutrients such as riboflavin contained in corn are very beneficial to the human body. 】

[It is worth noting that the nutritional value of special corn is higher than that of ordinary corn, and the moisture, active substances, vitamins and other nutrients of fresh corn are also much higher than that of old corn. 】

[Medicinal value: According to the "Compendium of Materia Medica": corn is planted in the western soil, Ganping is non-toxic, and can be adjusted and appetizing. The pollen and germ of corn also contain a large amount of vitamin E and zeaxanoids, and regular consumption of corn products can delay human aging and enhance human physical strength and endurance. 】

[Corn fructose syrup can prevent bleeding gums and has an auxiliary effect on the treatment of cardiovascular diseases. Applying modified corn starch to a human burn can prevent scarring on the affected area. Corn starch is also a good medium for the production of penicillin. Sorbitol paste made from oxidized corn dextrose can be used in the preparation of ascorbic acid tablets. Corn also has a beauty and slimming effect. Compared with soybeans and wheat, corn has a lower fat and protein content and a higher carbohydrate content. 】

[Corn whiskers, also known as "dragon whiskers", have a wide range of preventive health care uses, so there is a saying that "a corn whisker can be called two taels of gold". 】

[Studies have shown that the aqueous extract of corn silk can not only reduce blood glucose in hyperlipidemic mice, but also improve blood lipids and blood rheology; the total flavonoids in corn silk can significantly reduce the serum total cholesterol, triglyceride and low-density lipoprotein cholesterol levels of hyperlipidemic rats, and increase the level of high-density lipoprotein cholesterol. 】

[Dietary fiber accounts for the highest content among the main components of corn husks. 】

[However, corn husks are not popular with the public due to their rough taste and poor water solubility, and the dietary fiber components are not fully utilized, resulting in waste. Corn dietary fiber has the effects of lowering blood lipids, lowering blood pressure, and reducing the possibility of intestinal diseases. 】

[Straw crushing and returning to the field, through the action of microorganisms in the soil, slowly decompose and release the mineral nutrients in the soil, can be absorbed and utilized by crops, and the organic matter and humus formed in the decomposition process can provide raw materials for microorganisms and soil organisms in the soil, so as to effectively improve the soil structure and improve soil fertility. 】

............................................

Qin Dynasty.

Ying Zheng looked sleepy.

This corn is very good, but I won't give it to him

Let him just look at it!

"Straw crushed and returned to the field?".

Ying Zheng muttered, this can be tried in the Qin Dynasty.

It can actually increase soil fertility.

The Qin Dynasty also had a precedent, but it did not crush the straw and send it back to the field.

The trade-off for this is that it is prone to insect infestations.

[Strange trivia.] 】

[A certain kimchi country likes to use corn cobs to soak in water to drink, and also mocks our country for not knowing the goods, and throws away the most important thing in corn. 】

[As everyone knows, we all use corn cobs as dry firewood, or crush them to feed livestock. 】

[The reason for this is simple. 】

[Kimchi Country, as an island country, is a land of projectiles. 】

[Therefore, one thing should not be used as two servings. 】

[I have the habit of soaking corn on the cob. 】

[In addition, a piece of cold knowledge is popularized by science. 】

[They also like to eat watermelon rinds and steal other cultures.] 】

"Hahaha, that's funny. "

Ying Zheng was about to fall asleep.

Suddenly amused.

It's a fun little country called Kimchi Country.

My own country is poor, and I even eat corn cobs and watermelon rinds, but I am not ashamed, and I laugh at my big country.

Zhao Gaole's snot bubbles almost came out, "Ha... Your Majesty, the minister has violated etiquette, and I beg Your Majesty to punish him. "

On the other hand, Li Si and the others were so red that they were holding back.

If it weren't for His Majesty in front of him, it is estimated that one by one would be able to lie on the ground laughing.

"The widow forgives you innocence. Ying Zheng tried to control his expression, "You must remember that we are learning, and our attitude towards learning must be..."

"Hahaha!!

Before he finished speaking, he couldn't hold back.

Because, in the light curtain, a video of pickled watermelon rinds in Kimchi Country is playing.

Then the screen turns.

Hua Xia is pouring a pot of watermelon rinds left over from the family's food into the pigsty.

"Hahaha......

With His Majesty setting a precedent.

The ministers present were completely unable to hold back.

No, you can't laugh, learning is a very serious thing.

Unless... Can't help it.

Like this time and age.

It's really easy to hold back the problem if you don't laugh.