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在中性紫色土上,菠菜耐氯临界值为800~940ppm。相应,茎叶含氯1.91%,根含氯1.35%。但在此范围内菠菜Vc和NO_3-N含量显著降低。
In neutral purple soil, spinach chlorine threshold of 800 ~ 940ppm. Correspondingly, stems and leaves contain 1.91% chlorine and 1.35% chlorine. However, the content of spinach Vc and NO_3-N decreased significantly in this range.