1. To master the application rate of nitrogen fertilizer. After all, it's fertilizer. In order to ensure the normal growth of vegetables in a glass greenhouse, it is also necessary to control their dosage.
2. Try not to use chlorine fertilizer. Excessive chloride ions in fertilizers may lead to sugar content in vegetables, worsening their taste and affecting their quality.
3. The use of ammonium carbonate is prohibited. This type of fertilizer is prone to volatilizing a large amount of ammonia gas, and excessive ammonia gas can cause ammonia damage, which is harmful to the human body and not beneficial to vegetables.
4. Prohibit the application of nitrate nitrogen fertilizers. Nitrate containing fertilizers and compound fertilizers only accumulate more nitrate in vegetables. Once a person eats this vegetable, it will be reduced in the body and converted into nitrite. Nitrite is a carcinogen, which may cause gastric cancer and other diseases.