Pesticides and fertilizers have been "won't", and at least half of the credit for the successive increase in grain production depends on them

I don't know when, pesticides and fertilizers have become synonymous with pollution and harm
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Especially those people who live far away from the countryside and live in first- and second-tier cities have never planted crops.
They only know that agricultural products that use pesticides and fertilizers are not good things
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Xu Xiake: If we do not use chemical fertilizers or pesticides, more than 90% of crops will be reduced in production, and the world will fall into a food crisis
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? Grain Production Increases Recently, I read an article "Don't Demonize Pesticides and Fertilizers" which reversed the case for pesticides and fertilizers
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The article objectively analyzes the current situation of pesticides and fertilizers, and guides people to correctly understand chemical fertilizers and pesticides
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Next, Xu Xiake throws some insights and lists 3 questions to communicate with you
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? Don't demonize pesticides and fertilizers 1.
Why do we insist on using fertilizers and pesticides in food production? Chemical fertilizer is the "food" of grain, and pesticide is the "medicine" of food
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The reason is very simple.
Crops rely on fertilizer to grow, and you have to take medicine if you are sick
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Taking Shandong as an example, more than 99% of farmland is cropped without fallow, and what crops are planted in what season each year, so one of the key measures to maintain soil fertility is to spread chemical fertilizers
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? Spreading chemical fertilizers In our country, the most effective, economical and time-saving way to prevent and control pests and diseases is to spray pesticides
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Some people will say: "Why not rely on artificial methods, lighting and other physical methods, how good is it to raise ducks or frogs in a land?" Xu Xiake: Ordinary farmers don't plant land like this, because the price of food is so low, it is not good to go out to work.
"? Therefore, for the time being, food production cannot be separated from pesticides and fertilizers, including large farms in the Northeast and abroad
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? Biological control? Pesticide 2, application of chemical fertilizers will cause soil compaction and environmental pollution? Xu Xiake: It is influential, but don't exaggerate it
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Pollution such as eutrophication of water bodies is caused by excessive application of chemical fertilizers
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Experts said: The eutrophication caused by excessive (blind) fertilization is like the "three high" diseases caused by people's unreasonable diet and over-nutrition, and it is easy to get "riches disease".

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In addition, soil compaction is not caused by chemical fertilizers.
It is mainly caused by flood irrigation and not deep plowing
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Environmental pollution Regarding the abuse of pesticides, the previously reported incidents of poisonous ginger and poisonous leeks have caused people to "talk about medicine"
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There is no denying that the use of pesticides has advantages and disadvantages
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Now, many highly toxic and high-risk pesticides have been gradually eliminated
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Regarding the issue of pesticide residues, experts said: “As long as pesticides are used scientifically and rationally, safety intervals are strictly enforced and dosages are restricted, pesticide residues can be degraded to within the scope of safety standards, so the products are also safe
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”? Organic vegetables? Fish.
Disappear 3.
Cicadas do not cry, frogs do not bark, fish do not swim, shrimp do not play.
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Is it caused by the use of chemical fertilizers and pesticides? Xu Xiake believes that all the "pots" should not be given to fertilizers and pesticides
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The main reason is human greed and the deterioration of the ecological environment
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Take Shandong as an example.
In recent years, it has been too dry and there is almost no water in the ditch.
Where can the fish and shrimp come from? There are toads, and occasionally there is a heavy rain, and some rainwater gathers in the ditch
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The toads cheered up, and after a while, they will find some tadpoles in the water
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But the good times didn't last long.
With evaporation and infiltration, the ditch gradually dried up, and the tadpoles dried up before they grew into toads
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? The drought has intensified and I have seen it with my own eyes
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The following is a personal experience: 15 years ago, there was water all year round in the water ditches in the north of the Yellow River in Jinan.
Suddenly there was a spring drought for a year.
The water ditches were drained and the shallow water was full of fish and shrimps.
Arrogant
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Muddy mud soup, children have bare buttocks, and sometimes accidentally pierced their feet with broken glass.
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that's not a problem
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When the Yellow River comes, or it rains heavily, the ditch fills the river again, and the ditch is full of life (there were so many fish at that time)
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After the electric fish broke the law, the electric fish, the medicine, the household garbage, the waste water.
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everything changed.

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Now, we use deep groundwater for watering crops in the rural areas of the Yellow River North of Jinan
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? Cicada catcher As for, why are there fewer cicadas? Because more people caught monkeys at night than they knew monkeys
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In the Yellow River south of Jinan, some people caught cicadas with a cicada trap.
How do they lay eggs? Knowing that monkeys are "one ripen every three years"
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? In the past few years before the biological invasion, the exotic species P.
leucocephalus flooded in Shandong and other places.
When the plane sprayed pesticides to control P.
leucocephalus, it did harm our local species (cicada).
Isn't it all caused by human behavior? Therefore, it is necessary to look at the problem dialectically.
The chemical fertilizers and pesticides are not wrong, and the fault lies in improper use
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Why is there so much water shortage in the north now? Should the Yellow River be flooded in summer? ? Organic strawberry, in short, "is a medicine that is three-point poison, and it can replenish the body
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" In any case, we must treat pesticides and fertilizers objectively
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It is impossible to say that pesticides and fertilizers are harmless, and that there is no harm to all harms and no benefit is to distort the facts
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To say that all the agricultural products on the market use chemical fertilizers and pesticides, that is absolutely absolute
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There are organic agricultural products that do not use chemical fertilizers or pesticides.
They are all expensive and will increase in the future
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Because everyone's awareness of environmental protection and health is getting stronger
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? Is the life of chemical fertilizers "picking chrysanthemums under the eastern fence and seeing Nanshan leisurely" unrealistic? A catty of grain is the most real price without a bottle of mineral water
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Ordinary farmers have no energy or motivation to engage in organic farming
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The use of chemical fertilizers can only be grounded in agriculture, which meets the actual requirements
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Therefore, Xu Xiake said at the beginning: If we do not use chemical fertilizers and pesticides, more than 90% of the crops will be reduced in production, and the world will fall into a food crisis
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Finally, in the long run, green agriculture should be developed, which means it is better to use less or no pesticides and fertilizers as much as possible
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Experts believe that in-depth promotion of the reduction of fertilizers and pesticides is the development direction of green agriculture, and it is also a complex system engineering that requires all aspects of efforts.

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Objectively speaking, the use of chemical fertilizers and pesticides is at least half of the credit for the bumper crops in our country year after year
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So, don't demonize fertilizers and pesticides
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Source: Liang Fei Ai Sports