A large number of accumulated nitrates are harmless, but they are easily converted to nitrites. Nitrite easily replaces iron in human blood and causes blood poisoning. Nitrite and amines are linked to form a strong carcinogen, nitrosamines, which can cause cancers such as stomach and intestines. In winter, there is more weather at low temperature and low light, and vegetables in greenhouses are more likely to cause a large accumulation of nitrates, especially leafy vegetables and root vegetables. Strictly control the amount of nitrogen fertilizer, increase the application of phosphorus and potassium fertilizers, in particular, can not apply ammonium nitrate, potassium nitrate and other nitrate nitrogen fertilizer. Weighing Scale,Weighing Inidcator,Weighing Load Cell,Weighing Equipment,Electronic Scale,Weighing Controller Changzhou Satidi Import and Export Co., Ltd. , https://www.guanjiechuck.com
Greenhouse vegetables to guard against nitrates