The effect of agricultural waste biochar on the availability of silicon in ultisol and inceptisol under flooded conditions. Issue 1 (1st December 2022)

• Record Type: Journal Article
• Authors: Widijanto, H; Suntoro, ; Mujiyo, ; Syamsiyah, J
• Is Part Of: IOP conference series. Volume 1114:Issue 1(2022)
• Publication Date: 2022-12-01
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/1114/1/012035
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The research was conducted to know the effect of several kinds of biochar on the availability of Silicon (Si) on different soils in a flooded condition. The experiment used a complete randomized design (CRD) with two factors: biochar and soil type. Biochar type consists of B1 = rice straw; B2 = rice husk; B3 = sawdust; B4 = coconut shell; B5 = corn stover. Soil type consists of T1= Inceptisol and T2 = Ultisol. Each treatment is replicated three times. The experiment used 2 kg of soil, and the dose of biochar was 5 tons.ha −1 . Incubation is carried out for four weeks by maintaining a water height of 5 cm. Soil observation parameters include organic carbon, total Si, available Si, water leached Si, and pH H2 O. The data were analyzed using Analysis of Variance with 95% and 99% confidence levels, Duncan's Multiple Range Test, and Correlation Test. The results showed that rice husks biochar has a higher total Si and available Si than other biochar. Rice husk biochar gives the highest available Si of Inceptisol (8.66 mg.kg −1 ) and Ultisol (7.49 mg.kg −1 ) compared to the other biochar. Silicon leaching ranges from 5.23-8.66% of soil available Si in both soils.