Changes in Acidic Soil Chemical Properties and Carbon Dioxide Emission Due to Biochar and Lime Treatments

Mehnaz Mosharrof, Md. Kamal Uddin, Shamshuddin Jusop, Muhammad Firdaus Sulaiman, S. M. Shamsuzzaman and Ahmad Numery Ashfaqul Haque
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Mehnaz Mosharrof: Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
Md. Kamal Uddin: Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
Shamshuddin Jusop: Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
Muhammad Firdaus Sulaiman: Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
S. M. Shamsuzzaman: Divisional Laboratory, Soil Resource Development Institute (SRDI), Krishi Khamar Sharak, Dhaka-1215, Bangladesh
Ahmad Numery Ashfaqul Haque: Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia

Agriculture, 2021, vol. 11, issue 3, 1-20

Abstract: To mitigate global climate change and simultaneously increase soil productivity, the use of biochar in agriculture can be a modern agro-technology that can help in reducing greenhouse gas emissions, enhancing soil carbon sequestration, and ultimately increasing crop yield. This study aimed to evaluate the effects of biochar and lime application on the chemical properties of acid soil and the emission of CO 2 . A 60-day incubation study was conducted with eleven treatments (T) in which two different biochar produced from rice husk (RHB) and oil palm empty fruit bunches (EFBB) at two rates (10 and 15 t ha −1 ) and on three rates of dolomitic limestone (100%, 75%, and 50%), recommended rate of NPK and a control (no amendment). The result showed that biochar and lime significantly increased soil pH, available P, and decreased exchangeable Al compared to the control. The pH increase was 44.02% compared to the control treatment on day 15, and the available P was found to be 22.44 mg kg −1 on day 30 from Treatment 7 (75% lime + 15 t ha −1 RHB). The cumulative CO 2 emission from T 7 was 207.40 μmol CO 2 m −2 that decreased 139.41% compared to the control. Our findings conclude that RHB with 75% lime has more potential than EFBB to increase nutrient availability and reduce the emission of CO 2 in acid soil.

Keywords: acid soil; biochar; lime; carbon dioxide emission; soil nutrients (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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