"What do you want me to do?" Director Sun De's chest rose unconsciously.

"Calcium polysulfide, I want a large number; Bordeaux liquid, I also want a large number of them. ”

Director Sun De said: "Aren't all the pesticides we have in the pesticide factories over there producing? ”

"What is that pesticide factory called? It's just a workshop...... The production is not enough, the enemy is too fierce......"

Director Sun De smiled, and only people in the agricultural industry would call those little flying insects enemies or something, right?

However, he also immediately understood the urgency of the matter, and his face became stern.

Calcium polysulfide, also known as stone sulfur mixture, is a dark brown liquid with the smell of rotten eggs, which is alkaline.

If it encounters acids, carbon dioxide and other substances, it will decompose to produce monomer sulfur, hydrogen sulfide and insoluble sulfide. It itself is made of lime, sulfur and water, and the commonly used mother liquor ingredient ratio is quicklime: sulfur: water = 1:2:1o.

Because this broken thing is prone to free sulfur and calcium sulfate when it encounters air, it must only be sealed and stored. In general, it is boiled and used, and no one will save it lightly. In that side of the world, many agricultural science stations in remote areas are still equipped with this thing.

Bordeaux liquid is better than it, but if the copper sulfate in Bordeaux liquid is mixed with lime water for a long time, it is easy to precipitate and lose its effect. The reason is very simple, after a long time, the two will have a "coordination reaction" reaction, producing a precipitate of calcium sulfate and Cu(OH)2, so that there will be no copper ions and lose its bactericidal effect.

Therefore, Bordeaux liquid can be prepared separately from copper sulfate solution and lime aqueous solution, and when you want to use it, you can mix the two together. It's not a hassle, just prepare a few more barrels, and the estuary base is ready to provide them.

Stone sulfur mixtures first appeared in France in 18o2. No one knows who it is.

Its mother liquor is diluted and sprayed with water, which has an eradication effect on some diseases.

When using, the concentration of the liquid medicine is determined according to the type of crop, the growth period and the temperature. It can kill general moth-like pests, and its alkalinity can erode the waxy layer of the pest's epidermis, so it can also kill ticks, mites, scale insects and their eggs.

After spraying, the calcium polysulfide remaining on the surface of crops can form sulfur particles under the action of oxygen and carbon dioxide in the air, so that it will produce sulfur vapor after vaporization, which can interfere with the oxygen metabolism of pathogenic bacteria or pests during respiration and play a toxic role. This is an alternative fumigation and insecticidal method, which is very effective.

It is precisely for this reason that its control effect is positively correlated with temperature.

At this time, Taiwan's Chiji Agricultural Base was the most favorable time for its fumigation effect, so the first batch of rice maintained a high yield. Local pests and diseases are not preventing.

It is mainly used to control a variety of pests and diseases, but it can also be used to control parasitic mites in livestock and poultry, which have been proven to be feasible against parasitic mites on humans, although in much smaller quantities.

Dean Ma Jun will have to pass it a few times, and I don't know who he will use.

However, its disadvantages are also significant, in higher temperatures it is also easy to produce pesticide damage to plants, not to mention people, and at the same time, the aquatic life in the rice field is also miserable, and the outcome can be imagined.

If these side effects are removed, it is the same as Bordeaux liquid, and it is really invincible against basic pests and diseases in agriculture in this plane. Not to mention that the things of the Hantang Group are of higher purity.

After all, they belong to the category of inorganic pesticides, which is the most advanced technical means in this time and space.

In this time and space, of course, the people of the Hantang Group will think that they are very awesome, they are not awesome, they are not convinced, let those so-called pests and diseases try-

The result of the trial is that the so-called pests and diseases in this time and space cannot even adapt to the wood vinegar pesticides that the Hantang Group was forced to prescribe and other local pesticides that want to laugh.

As planned, the people of the Han and Tang groups achieved a bumper harvest that overwhelmed all the Ming peasants.

Recalling the time of the double robbery, when the fields had just begun to be roasted, the Ming farmers put incense on the table, knelt down, and endlessly, so that the rice that was about to become the inventory in the granary could not live in peace.

Some people from the Hantang Group mentioned yì and said, let's popularize science, I'm afraid they will think it's a ghost or something.

Director Jianguoan smiled and said: "Xiao Yang, they don't believe in ghosts and gods, otherwise they wouldn't have bought our various soil pesticides - they didn't use them when Professor Wu Yongmei gave them for nothing—they are now with a grateful heart!" ”

Yang Youxing, a writer on the servant street network in that world, was puzzled and said, "Thanksgiving? Thanks to us, huh? What are you doing to the rice fields? ”

"The rice field is just a virtual object, the people of Mingda 6 have developed a complex of repaying gratitude, they don't believe that it is the reward they deserve for their labor, it must be a reward given by some kind of force, and they will have a harvest - maybe it is heaven? Maybe a fairy? Maybe the emperor? The last time is that the ancestors took care of it - it is too troublesome to worship and thank each other, so it is better to materialize into a rice field. I'm talking nonsense, too - what do you see? ”

"I think it would be better to take this opportunity to promote our role—"

"Hehe, no, we do anything, and they're quietly watching. Go without saying. ”

At that time, Yang Youxing, a writer on the Internet of Servant Street, made a move that was defeated by you and said, "Okay, then I'll go back and count your various real yàn counts." ”

At that time, the Hantang Group still held calcium chlorate, a big killer for weeding, although it was an inactivated weeding control and could not reach the same targeted level as organic pesticides...... But it also frightened the Ming cane farmers, if this inconspicuous object is put on, the weeds in the cane fields will not grow?! Oh my God, ancestors, what other divine power do the people of their Hantang Group have?!

In fact, the director of Jianguo An is also sighing constantly.

Organic pesticides, that's my favorite...... How many times when spraying inorganic pesticides in his hands, the directors of Jianguo An sighed in their hearts.

As early as before the crossing, the director of Jianguo An had written a plan to open 666 at an early stage. He was prepared for good reason.

First of all, it is a broad-spectrum insecticide, but also an organochlorine insecticide, with contact killing, stomach poisoning and fumigation insecticidal effect, can control rice, cotton, warehouse pests and all kinds of health pests, in that side of the world, in the fifties and sixties of the West for many years of continuous harvest, absolutely has its credit. If you think about it, even locusts can be killed by a pest as large and in groups...... Good stuff.

Far from it, take India as an example.

Before the use of 666 mosquito control, they died of malaria as high as 750000 per year, and after using it to kill mosquitoes, less than 300000 people died of malaria every year...... That's convincing enough.

Secondly, the process of 666 is simple. It didn't take 666 tests to succeed, but under ultraviolet irradiation, in fact, under ordinary sunlight, it made chlorine gas pass pure benzene, and its molecular formula is C6H6C16, six chlorine, six hydrogen, six carbon...... That's why it's called 666, I really don't know who changed it to an inspirational essay, maybe it's the work of an old-fashioned chicken soup for the soul writer, right?

If there were six-six-six, we would be like having battleships in the age of discovery......

Of course, it does have the disadvantages of being highly toxic, the residual poison is not easy to decompose, and it is easy to accumulate in the animal's body...... But we can use it in a controlled way, when it matters.

At that time, his four friends shook their heads like rattles, no, this is not possible, in that world, they stopped producing organochlorine pesticides altogether in 1983, but their residues were still in the world before they crossed over, and they could still be detected in food...... It's easy for everyone to cross over here, but you can't go back to the old way.

At that time, Jianguoan still said in his heart, a group of novices in agricultural production, without organochlorine pesticides, I don't know how many people will starve to death, and even the drugs people eat are three points toxic, let alone pesticides......

Wu Dapeng thought for a moment and said: "Jianren, you are too far ahead, using battleships to conquer the Great Voyage is too much, we may be able to cross organochlorine pesticides at once...... Besides, haven't you also deduced that inorganic pesticides can be invincible in that time and space for the time being? ”

At that time, Sun De also said: "We can try it -- that organochlorine pesticide can't decompose naturally for 50 years." ”

Li Ziqiang hurriedly said: "Yes, yes, I heard that thing makes people unable to give birth to children - even if they are born without assholes - this is a deformity." ”

Song added: "Nothing is more valuable than our health – no matter what kind of food it produces, it doesn't matter what it does, it doesn't matter what we do." ”

This is a collective statement, these pesticide whites, they have collectively demonized 666 - if there is a choice, 666 is indeed more disadvantageous, but it is not so terrifying, those who have gone through the fifties, sixties and seventies will not survive?

You ignore the reality of people in the fifties, sixties and seventies happily square dancing, and talk about the worst real yàn report!

They Westerners also went through that stage! Aren't they all good? They discarded it when they had another choice.

Jianguo'an said sadly at the time: "Big Bird, Aberdeen, Plum, Ambassador, that stage of organochlorine pesticides is not so easy to cross - don't be too optimistic." ”

Yes, in this 17th century time and space, inorganic pesticides are indeed invincible for the time being, but you must know how much it should be used...... At least one kilogram of land should be used for one acre, which must be done under higher purity conditions...... And what if you use organic pesticides? An acre of land can be done with a few dozen grams......

Now, in the face of this sudden incident, the pharmaceutical factory in the Chiji Agricultural Base is facing the problem of output, otherwise Director Jianguoan would not have shouted for help.

This June of 1649 was really not going well.

Director Sun De said to Director Jianguoan: "You put your heart in your stomach, now, those little flying insects are a fart!" ”

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