Today due to the tastes of consumers prefer the fruit or vegetable fat non silk lining, to sharks, with no trace pest ... growers should have the kind of abuse of agricultural chemicals to fertilize and spray for fruits and vegetables essential for daily consumption.
Here are some characteristics to identify a number of vegetables does not guarantee food safety because so much abuse of agricultural chemicals:
When too much nitrogen fertilizer or vegetable leaves usually to the body than normal, crunchy vegetables, dark green leaves.
When boiled vegetables, boil the hot water is light green, when cold water turned black and blue with black precipitate suspensions. These vegetables when eaten, if the observant have noticed your chat.
Consumers often prefer to big sprouts, white, brittle and less roots. To make sprouts like that, the experience of the maker is less than the case that the producers had used foliar fertilizers mixed with other herbicides focus on the root (to kill the plant roots without affecting to the germ), then watering and composting to sprout again. These types of sprouts when making salad or stir-fry, we will see the white colored water from bean sprouts flow out to disc.
Squash vegetable (tops and leaves of pumpkin)
The premature and long tops, internode spacing long, fat arms and short, less fluff, pumpkin tops is light green, dark green leaves ... is the excess urea fertilized vegetables, many foliar spray and not enough time in quarantine.
The big and white vegetables stem, quickly withered, if preserve till the next day, the vegetables searing, the body is dry to wrinkled, when cook the leaves turn to dark green ... is vegetables that was sprayed too much of pesticide (organophosphate group) and foliar.
The types of legumes (including cowpea, bean, peas, snow peas ...)
The polished, little fluffy bean is surely caused by the grower who use more nitrogen fertilizer or foliar sprayed too much. If there is no trace of worm disease is caused by too many pesticides sprayed and does not guarantee isolation time.
Quoted from The Family & Society Magazine