The soil sulphate effect and maize plant (Zea mays L.) growth of sulphate reducing bacteria (SRB) inoculation in acid sulfate soils with the different soil water condition

International Conference on Agriculture, Environment, and Food Security

农业科学;生态环境科学

Asmarlaili, S.^1 ; Rauf, A.^1 ; Hanafiah, D.S.^1 ; Sudarno, Y.^1 ; Abdi, P.^1

Faculty of Agriculture, Universitas Sumatera Utara, Medan

20155, Indonesia^1

关键词: Acid sulfate soils;    Block designs;    Different soils;    Different water contents;    Field capacity;    Soil acidity;    Sulphate-reducing bacteria;    Water conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/122/1/012037/pdf
DOI  :  10.1088/1755-1315/122/1/012037

来源: IOP

【 摘 要 】

The objective of the study was to determine the potential application of sulphate reducing bacteria on acid sulfate soil with different water content in the green house. The research was carried out in the Laboratory and Green House, Faculty of Agriculture, Universitas Sumatera Utara. This research used Randomized Block Design with two treatments factors, ie sulphate reducing bacteria (SRB) isolate (control, LK4, LK6, TSM4, TSM3, AP4, AP3, LK4 + TSM3, LK4 + AP4, LK4 + AP3, LK6 + TSM3, LK6 + AP4, LK6 + AP3, TSM4 + TSM3, TSM4 + AP4, TSM4 + AP3) and water condition (100% field capacity and 110% field capacity). The results showed that application of isolate LK4 + AP4 with water condition 110% field capacity decreased the soil sulphate content (27.38 ppm) significantly after 6 weeks. Application of isolate LK4 + AP3 with water condition 110% field capacity increased soil pH (5.58) after-week efficacy 6. Application of isolate LK4 with water condition 110% field capacity increased plant growth (140 cm; 25.74 g) significantly after week 6. The best treatment was application isolate LK4 with water condition 110% field Capacity (SRB population 2.5x108; soil sulphate content 29.10ppm; soil acidity 4.78; plant height 140cm; plant weight 25.74g).