Salam, Abdul Kadir and Sriyani, Nanik and Heradilla, Mutia and Septiana, Alia (1997) Aktivitas Fosfatase di Daerah Perakaran Beberapa Gulma Tropika yang Tercemar Timah Hitam. AGRIVITA, Journal of Agricultural Science, 20 (1). pp. 12-16. ISSN 0126 - 0537

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Abstract

Activities of soil phosphatases are suggested to be governed by plant species and other factors such as pH and heavy metal contents. Soil phosphatases were studied in the root-zones of some tropical weeds contaminated with Pb and treated with lime. Weeds were grown in 200 g potted soil samples for 4 weeks in a glass house. The results showed that the soil was dominated by acid phosphatase. The activities of acid and alkaline phosphatases in the root zones of alang-alang were higher than those in the root-zones of green kyllinga, pigweed, and amaranth, while those in the root-zone of pigweed were the lowest. Lime at 4 ton CaCO3 ha-1 significantly decreased the activity of acid phosphatase and increased the activity of alkaline phosphatase. The effect of Pb at 20 mg kg-1 was not observed.

Item Type: Article
Uncontrolled Keywords: Lead, Heavy Metals, Phosphatases, Tropical Weeds
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User: Abdul Kadir Salam
Date Deposited: 26 Apr 2018 04:00
Last Modified: 26 Apr 2018 04:00
URI: http://repository.lppm.unila.ac.id/id/eprint/6517

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