Salam, Abdul Kadir and Yusnaini, Sri and Supriatin, Supriatin (2021) The phytoextraction of Cu and Zn by elephant grass (Pennisetum purpureum) from tropical soil 21 years after amendment with industrial waste containing heavy metals. In: IOP Conference Series: Earth and Environmental Science, Volume 637, The 7th International Conference on Sustainable Agriculture and Environment 25-27 August 2020, Surakarta, Indonesia, 25-27 August 2020, Surakarta, Indonesia.

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Abstract

Increased soil heavy metal concentrations are suggested to cause roots to work harder. This research was to study the growth and phytoextraction behaviors of elephant grass in soil amended with industrial waste. Soil samples were obtained from an experimental field treated with a heavy metal containing waste at 0, 15 and 60 Mg ha-1, CaCO3 at 0 and 5 Mg ha-1 , and compost at 0 and 5 Mg ha-1. Soil samples were planted with elephant grass, 8 weeks after which the soil samples were analyzed for Cu and Zn. Plant roots and shoots were harvested and weighed for their dry-masses and analyzed for Cu and Zn. The results demonstrate that the Root/Shoot increased and show good correlations with the increase in soil Cu or Zn. The plant Cu or Zn increased with the increase in soil Cu or Zn but decreased with liming. Plant Cu and Zn in roots and the whole plants as well as their TFs were well correlated with soil Cu and Zn. These observations confirm that the root/shoot growth and Cu and Zn absorption by elephant grass are governed by soil Cu and Zn and elephant grass is a Cu and Zn phytoextractor.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User:	Prof. Dr. Sri Yusnaini
Date Deposited:	24 May 2021 01:39
Last Modified:	24 May 2021 01:39
URI:	http://repository.lppm.unila.ac.id/id/eprint/30497

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