Growth and Accumulation Of Pb In Native Hymenachne (Hymenachne acutigluma) In Tailings Area As Affected By Organic and Inorganic Fertilizer

Nyayu Siti Khodijah, SP., M.Si, - and Rujito Suwignyo, - and M.Umar Harun, - and Lucy Robiartini, - (2019) Growth and Accumulation Of Pb In Native Hymenachne (Hymenachne acutigluma) In Tailings Area As Affected By Organic and Inorganic Fertilizer. Proceedings of the International Conference on Maritime and Archipelago (ICoMA 2018). ISSN 2352-5401

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Abstract

Tin mining in the Islands of Bangka and Belitung left behind a vast area with low fertility. The tailings area of ex-tin mining is different from common soil both in terms of mineral and chemical compositions, with characteristics such as the unstable geochemical aspect, extreme pH value, cation-exchange capacity, low organic matter, and heavy metals pollution. Native hymenachne Hymenachne acutigluma (Steud)) is a type of perennial grass that has been used for long time by the local people in America, Australia, and Asia since it has good economic value as high-nutrient feed. The existence of this plant in the tailings areas have not been vigorously studied yet. Thus this study was aimed to determine the growth rate and accumulation of Pb in native hymenachne as affected by organic or inorganic fertilizer. The results showed that the hymenachne grew better after treatment with natural fertilizer and nitrogen. The accumulation of Pb at the tip of the leaves before and after treatment with organic and inorganic fertilizers was beyond the safe limit for feed. At the early utilization stage of tailings area after tin mining, native hymenachne (Top of Form (Hymenachnesp) is an invasive type of grass. Invasive vegetation could dominate the layers of soil and change the structure, composition, and the ecosystem’s ecological function. Invasive grass can compete in the terms of utilization of water, nutrients, and light. Native hymenachne (Top of FormHymenachne acutigluma (Steud)) has the potentials as pioneer vegetation and as phytoaccumulation of Pb. However, the utilization of hymenachne as animal feed has to consider the level of Pb in it if they come from tailings area, where the safe level of Pb in vegetables and its products based on SNI 2009 should not be over 0.5 mg/kg

Item Type:	Article
Uncontrolled Keywords:	Tin mining, Accumulation, Native grass, Hymenachne acutigluma, Tailings
Subjects:	S Pertanian > S Pertanian (Umum)
Divisions:	KARYA TULIS DOSEN
Depositing User:	UPT Perpustakaan UBB
Date Deposited:	18 Apr 2023 03:31
Last Modified:	19 May 2023 04:50
URI:	https://repository.ubb.ac.id/id/eprint/7430

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