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IOP Conference Series: Earth and Environmental Science
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Abstract. The district of Dharmasraya, Sijunjung and Pasaman Barat are the three main locations of illegal gold mining in West Sumatra. This kind of activity triggers a lot of land-use changes and the loss of agricultural land within those areas and creates environmental problems as well. Decreasing agricultural land will bring a significant impact on food availability within the region. To protect the scarcity of food, we conducted remediation of ex-gold mining land on \nthose three locations by using biochar made from rice husk. This study was carried on at Batu \nManjulur village, Kupitan sub-district in Sijunjung for four months, where soil sample was analyzed at Soil Science Department, Faculty of Agriculture, Andalas University. The experiment use 6 level of biochar application, run from A [without biochar]; B [fulfil of 2% soil organic matter content [SOM]]; C [fulfil 3% SOM]; D [fulfil 4% SOM], E [fulfil 5% SOM] and \nF [fulfil 6% SOM] with three replication. The result shows the application of rice husk-derived \nbiochar increased soil quality including the chemical properties of the soil and improving \nnutrient retention and land productivity. \nKeywords: ex-gold mining land, rice husk biochar, nutrient retention
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Metadata
- Venue
- IOP Conference Series Earth and Environmental Science
- Publisher
- IOP Publishing
- Published
- 2020-12-30
- ISSN
- 1755-1315 (ISSN-L)
- 1755-1307
- OpenAlex
- W3208261418
- Cited by
- 12,764
- References
- 0
- Type
- paratext
- Language
- en
- Open access
- diamond
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