-For leaf vegetables (spinach, cabbage, lettuce, basella ...): to see the leaves of vegetables non green leaves than normal, black, brittle and almost no traces harmful pests; Here are the vegetables that growers have too much nitrogen fertilizer or fertilizers and spray the insecticide, but the disease does not guarantee time in quarantine. For this vegetable, part contains many protein nitorat (NO3) and plant protection chemicals harmful to human health.
đang được dịch, vui lòng đợi..
