Watermelon has the least pesticide residue and apple has the most pesticide residue

After entering the vault, Nanjing is about to usher in the hottest season, and the watermelon is also the hottest time
.
However, in recent years, rumors about watermelons have made people hesitate.
One is to inject cyclamate, and the other is to use swelling agent.
A merchant in the fruit business even directly stated that he never eats his own watermelon
.
However, many farmers believe that watermelon is the safest fruit
.
The reporter specifically consulted the expert teacher Wang Liangju of the Southern Agricultural University for this purpose.
He said that the most basic food safety of the fruits currently on the market is guaranteed
.
Whether watermelon is safe or not, the sellers of melons have different opinions.
"We have never eaten watermelons ourselves.
Sodium cyclamate, swelling agent, ripening agent, now melon farmers use everything, I advise you not to eat it
.
" Mr.
Yang, who is a fruit wholesaler at the Cai Market, seems to have an unusual bias towards watermelons.
"You have not noticed that many watermelons have white stems after they are cut, so they are made of sodium cyclamate
.
" Mr.
Yang said plausibly, facts.
Is it true? Hearing this, Gao Zhou, a melon farmer who sells watermelons in the Hexi area, became anxious: “This is nonsense.
Watermelon is the fruit with the least pesticides in melons and fruits.
The base fertilizer for our watermelon is soil and manure, such as pig manure and chicken.
Dung, and fermented beancake
.
Watermelon rarely has insects.
We generally use smoke to prevent insects
.
" Gao Zhou said that the requirements for growing watermelons in greenhouses are very high.
Basically, they change a place every year and do not repeat cropping.
Watermelon has less chance of getting sick
.
In addition, the temperature in the shed itself is very high, similar to the ambient temperature of natural growth, so the watermelon is also resistant to disease
.
As long as the greenhouse is ventilated in time and kept dry, the virus will be less, and through reasonable adjustment, wilting and rotting roots will rarely occur
.
Coupled with the thick skin of the watermelon itself, generally soft bugs cannot get in, and berry fruits like watermelon have a lot of water and are not suitable for bugs to survive
.
Almost every year when watermelons are on the market, there are always various rumors on the Internet, such as melon farmers injecting sodium cyclamate into the watermelon.
Experts have refuted the rumors many times because the injected watermelon is easy to rot and break, which is not conducive to sales.

.
Teacher Wang Liangju, who specializes in fruit cultivation at Nanjing Agricultural University, also said: “There is no technology that can increase the cyclamate in watermelons, and cyclamate is not easy to be absorbed and utilized
.
This argument should be the people who sell watermelons to scare themselves
.
” Use of chemical fertilizers and pesticides does not work.
Apple’s pesticide residues are ranked first.
Regarding the safety of fruits, apart from the use of hormones, pesticide residues are another criterion for judging the safety of fruits
.
In the "Fruit Pesticide Residue Ranking List" released a few years ago, watermelon is indeed a fruit with relatively few pesticide residues, and ranked first, it turned out to be the most consumed apple! According to this ranking, apples, strawberries, peaches, imported nectarines, imported grapes, domestic blueberries, etc.
are fruits with more pesticide residues, while pineapples, mangos, American melons, kiwis, grapefruits, etc.
, have fewer residues.
Of
.
According to Mr.
Chen, the owner of the fruit shop, apples have to be sprayed with pesticides many times due to growth requirements.
Some are used to cure insects, some are used to hang fruits, and some are used to kill germs
.
Coupled with the long growth cycle of apples, there is a high probability of pests, and pesticides are even more necessary.
"At least 3-4 times, if there are more, you have to use the medicine every time it rains
.
" Faced with this situation, some people may I will ask: Isn’t it okay not to use pesticides? It really doesn't work
.
The survey shows that for field crops, 30%-50% of the yield will be lost if no pesticide is used
.
Teacher Wang Liangju also said: “At present, it is impossible to use pesticides and fertilizers in the growth process of agricultural products, but generally 20-30 days before the watermelon is picked, it cannot be sprayed again.
It has a safe period
.
As long as its picking process If the watermelon meets the national standards, there will be no problem
.
” For this ranking, Mr.
Wang also said that the amount of medicine used on fruits in different places is not the same.
For example, the temperature in the south is relatively high, the humidity is relatively high, and there may be relatively more pests.
Some, the medication will be relatively more
.
In the north, the temperature is relatively low and the humidity is not so high, so the use of pesticides will be relatively small.

.
In order to reduce the pesticide residues in fruits, the country is now promoting fruit bagging technology.
Teacher Wang Liangju said: "Apples, grapes, peaches, etc.
can all be used, but strawberries cannot be implemented because they are too small
.
After bagging, the plants may also be affected .
Ill, but if it is not particularly serious, it will not harm the fruit, but if the insect eats the leaves too badly, it will be used
.
However, the pesticide will not be sprayed on the fruit, and the bagging acts as a shield
.
" The plant hormones are demonized.
There is no harm to the human body when used in moderation.
As soon as you see the name of hormones, people can't help but think whether they will affect the growth and development of people
.
In the concept of most people, pesticide residues can also reduce harm through scientific cleaning and peeling, but the effects of hormones are not so easy to eliminate
.
In fact, plant hormones and animal hormones are completely different things.
Teacher Wang Liangju also said: "Any plant technology, as long as it is used normally, there will be no major problems
.
" Regarding plant hormones, people hear about cyclamate and cyclamate.
ripening agent, swelling and the like
.
Wang Liangju said that the swelling agent has actually been used in Japan's agricultural production many years ago, but in recent years, Japan has no longer used the swelling agent
.
"The reason why the swelling agent is not used is not because it is harmful to the human body
.
It is uniform during the spraying process, but under the action of gravity, it will flow downwards, and the bottom will grow a little larger, so malformed fruit appears
.
No use of bulking agents is not because of safety issues, but because of the
appearance of the food .
" Teacher Wang Liangju said
.
This year, the article "The top flower with thorns" in the circle of friends has been widely circulated, but in fact this is completely misinformed.
Teacher Wang explained: "Plant hormones are different from animal hormones.
They are generally used under normal consumption.
It will not cause harm to the human body.
It will only promote or inhibit the production process of plants, mainly to regulate growth and development
.
" At a time when food safety is becoming more and more important to the people, any product exposure will cause problems.
Come to the attention of the whole society
.
"There may be problems of one kind or another in the process of agricultural production, such as more nitrogen fertilizer and a little less, but the most basic food safety can still be guaranteed
.
If food safety problems really arise, everyone will be condemned and cannot be allowed.
They exist in this society
.
” In Teacher Wang’s view, food safety must be guaranteed, but the people don’t have to worry too much about various unconfirmed rumors.
“The safety of fruit can generally be understood from the appearance of the fruit.
Correct fruits and fruits that meet the characteristics of the fruit are relatively safe
.
When consumers pick fruits, they don’t need to worry too much about food safety issues.
Some are just varieties
.
"