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, 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 kylllnga, pigweed, and amaranth, while those in the root-zone of pigweed was the lowest. Lime at 4 ton CaCO,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: | 25 Apr 2018 06:41 |
| Last Modified: | 25 Apr 2018 06:41 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/6369 |
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