期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：233
期号：4
页码：042024
DOI：10.1088/1755-1315/233/4/042024
出版社：IOP Publishing
摘要：A pot experiment was conducted to study the effect of intercropping S. nigrum, tomato and eggplant on the potassium content under cadmium stress. The results showed that compared with the control, the intercropping of S. nigrum and tomato has reduced potassium content in S. nigrum stems, leaves and aerial parts by 9.19%, 16.10% and 14.44%, and the content of potassium in tomato roots, stems, leaves and aerial parts was increased by 17.27%, 108.04%, 11.92% and 42.61%, respectively. Compared with the control, the intercropping of S. nigrum and eggplant increased the potassium content of S. nigrum roots, stems, leaves and aerial parts by 5.00%, 2.01%, 8.73% and 3.85%, respectively, and the potassium content of stems, leaves and aerial parts of eggplant decreased by 3.54%, 8.37% and 6.71%. Therefore, the intercropping of S. nigrum and tomato can increase the potassium content of tomato, which is helpful to improve the resistance of tomato to heavy metal.
