Fertilizer not suitable for use in vegetables

There are many types of fertilizers, and there are more than 10 commonly used. Some fertilizers can improve quality and yield after being used in vegetables, but some fertilizers can increase the yield of vegetables, but they can cause toxin pollution in vegetables, causing food poisoning and even life-threatening. For example, ammonium nitrate and other nitrate nitrogen fertilizers are generally not suitable for application to vegetables, especially cabbage, green vegetables, spinach and other leafy vegetables, because the nitrate nitrogen fertilizer is applied to the vegetable field, the nitrate content of vegetables is doubled, nitric acid Salt is easily reduced to nitrite in human body. Nitrite is a kind of drug, which is extremely harmful to human body and is a carcinogen. Fertilizers containing chlorine components such as ammonium chloride and potassium chloride are not suitable for use in crops such as tomatoes, potatoes, sweet potatoes, and rehmannia. Because chlorinated fertilizers are decomposed in the soil, ammonia or potassium ions are adsorbed by the soil and absorbed by the crops. When the concentration reaches a certain level, it will poison the plant roots. It can reduce the content of starch and sugar in the product, affect the yield and quality, and seriously cause the crop to die.

A bench-scale study was conducted using water from a drinking water treatment facility on Lake Ontario to investigate water quality and disinfection impacts of chlorine contamination in a chlorine dioxide solution applied for primary disinfection. Levels of chlorine contamination were varied between 0% (Pure Chlorine Dioxide) and 20%, with a chlorine dioxide dose of 1 mg/L. The chlorine did not significantly affect the rate of chlorine dioxide decay in the water. The chlorine reduced chlorite formation, but led to a corresponding increase in chlorate formation. Trihalomethane and haloacetic acid concentrations varied with the amount of free chlorine present in the chlorine dioxide solution. Levels of Bacillus subtilis endospore inactivation were similar for solutions containing pure chlorine dioxide and a 20%:80% chlorine:chlorine dioxide mass ratio (for the same total chlorine concentration). Since chlorine alone has been reported to be very ineffective against these endospores, the results suggest that the disinfection effectiveness of the mixture was greater than the effectiveness predicted from each of the two disinfectants acting alone.

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