How to reduce nitrate in vegetables grown in greenhouses

Everyone should be familiar with nitrate. The report has also written that many people cause food poisoning due to nitrate. Many of the customers of Henan greenhouse grow vegetables. The vegetables may have nitrate adhered to them due to fertilizer. It is inevitable, so how to reduce the nitrate on vegetables? The following Henan greenhouse will give you a good explanation.

Henan greenhouse summarizes the following methods to reduce nitrate:

1. It is forbidden to use nitrate nitrogen fertilizer. Fertilizers with nitric acid and compound fertilizers tend to accumulate more nitrates in vegetables. After people eat this vegetable, under reducing conditions in the body, it will be converted into nitrite. Nitrite is a carcinogen that can cause gastric cancer, esophageal cancer and other cancers and other diseases.

2. Control the amount of nitrogen fertilizer applied. What I'm talking about here is that the use rate of nitrogen fertilizer needs to be controlled. As an indispensable fertilizer in vegetable production, while reducing the nitrate content in vegetables, it is also necessary to reduce the amount of nitrogen fertilizer applied. Different vegetables have different requirements for nitrogen fertilizer. It should be just right, not excessive, so as to reduce the loss and increase the utilization rate.

3. It is not suitable to use chlorinated fertilizers. Excess chloride ions in fertilizers will reduce the sugar content in vegetables, make the quality worse, taste astringent, and also cause soil compaction.

4. Prohibit the use of ammonium bicarbonate. This kind of fertilizer is prone to volatilize a lot of ammonia gas. Excessive ammonia gas can cause ammonia damage, which is harmful to the human body and is not beneficial to vegetables.