Regarding chlorine-sensitive crops
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Some plants are highly sensitive to chloride ions; when the amount absorbed reaches a certain level, it significantly affects yield and quality. Such plants are commonly referred to as chloride-sensitive plants. When there is an excess of chloride ions, it hinders the conversion of sugar into starch, resulting in a lower starch content in root and tuber crops ； Chloride ions can promote the hydrolysis of carbohydrates, while watermelons, beets, and grapes will have reduced sugar content ； A high concentration of chloride ions can affect the burnability of tobacco, causing cigarettes to go out easily ； High levels of chloride ions often cause damage to the seedlings of sensitive crops. Tobacco, potatoes, sweet potatoes, sugarcane, watermelons, grapes, citrus fruits, beets, apples, tea leaves, Chinese cabbages, chili peppers, lettuce, amaranth, and others are all chlorine-sensitive crops. Chlorine has an adverse effect on Solanaceae crops. Soybeans and string beans have weak resistance to chlorine. Here, I would like everyone to discuss what the minimum requirement for chloride ions should be for chlorine-sensitive crops Different crops should require different approaches; please do not use 3% as the standard for sulfur-based compound fertilizers. Under normal circumstances, the percentage should be higher, and exactly how much higher it needs to be is something that requires further discussion. . . . . . This post was last edited by Zhuhai Tingtao on 2009-3-12 at 12:54.]
The poster used a crop that is highly sensitive to chlorine – mung beans; even a slight increase in chloride levels can lead to death or severe yield reduction. In production, it is common to encounter situations where certain vegetable crops react negatively to high levels of chloride ions; this often results in weak seedlings that fail to grow properly, as specific measurements of chloride ion concentrations are not carried out in practice
This is a question that is relatively difficult to define. In many cases, the source of chlorine is not solely due to fertilization. Moreover, a high level of chloride ions does not necessarily pose a significant problem. This also relates to the amount of fertilizer used and the habits surrounding its application; therefore, in my opinion, it is meaningless to simply focus on the level of chloride ions. . . . . . . .