The accumulation and distribution of copper in various parts of the plant is that the roots are larger than the stems and the leaves are larger than the fruits.

Copper poisons the leaves of plants because copper can oxidize divalent iron ions into trivalent iron ions, hindering the plants' absorption of divalent iron and the operation of iron in the plants, resulting in iron deficiency in plants and yellowing of leaves.

If you want to confirm this idea, you need to detect this leaf. Exit the transcoding page, please download the latest chapter of Aiyue app.

Ye Feng thought about modern instrument analysis again. Later generations generally used the working curve method to detect copper elements using the basic principles of atomic absorption spectroscopy analysis.

That is, it is used to measure it using an atomic absorption spectrophotometer and a copper element hollow cathode lamp.

It is impossible for Ye Feng to use these instruments to determine.

Ye Feng was at a loss when his eyes swept at the blue-green sticky phlegm spitting on the stones that the big man spitted.

Ye Feng asked again: "Is there any difference between taking Lu Kui to send someone to someone?"

The first release of this book: Tower Reading & App - Free, no advertisements, no pop-ups, and you can also interact with book friends.

The woman said with some dissatisfaction when she heard this: "It was fine before she went, but after she came back, she yelled that she was nauseous, and she often vomited and had diarrhea. She also made her mouth full of blue green."

After an endless coma, Shi Yu suddenly got up from the bed. If you want to see the latest chapter content, please download it. The latest chapter content is free of advertisements. The website no longer updates the latest chapter content, but the Star App has updated the latest chapter content.

He breathed fresh air in his mouth, and his chest trembled.

Confused and puzzled, all kinds of emotions surged into my heart.

Where is this?

Then, Shi Yu subconsciously observed the surroundings and became even more confused.

A single dormitory?

Even if he successfully received rescue, he should be in the ward now.

And his own body...how could he be injured at all?

With doubt, Shi Yu's gaze swept through the room quickly, and finally his eyes stopped on a mirror at the head of the bed.

The mirror shows his current appearance, about seventeen or eighteen years old, and he looks very handsome.

But the problem is, this is not him! Download the Xingxing app, the latest chapter content is free of charge without ads

Before, I was a handsome young man in his twenties who was extraordinary and handsome. I have been working for a while.

Now, no matter how you look at this, you are just the age of a high school student...

This change made Shi Yu stunned for a long time.

Don't tell him that the operation is successful...

My body and appearance have changed. This is not a problem of not having surgery or not, but a magic trick.

He turned into another person completely!

Could it be... that I have traveled through time by myself?

In addition to the mirror at the head of the bed with obvious feng shui, Shi Yu also found three books next to him.

Shi Yu picked it up and looked at it. The title of the book instantly made him silent.

"Beast breeding manual for beginners"

"Pet postpartum care"

"A Guide to Evaluation of the Different Race Beast Ear Girl"

Shi Yu:???

The names of the first two books are quite normal, what happened to you in the last book?

"cough."

Shi Yu's eyes sterned and he stretched out his hand, but his arms quickly froze.

Just as he wanted to open the third book and see what it was, his brain suddenly stinged, and a large number of memories emerged like a tide.

Iceland City.

Pet animal feeding base.

Intern pet breeder. The website is about to be closed. Download the Star App to provide you with great inventors who are unable to become climate.
Chapter completed!