Evaluation of Farming Practices for Reduction of Greenhouse Gas Emission in Korean Agricultural Sector

Abstract

This study was conducted to provide low carbon farming technique for greenhouse gases(GHGs) emission reduction in agriculture sector. It reviewed literatures on the characteristic of cultivation technique and its effects on carbon emission reduction. The effects of GHGs emission reduction were evaluated in agricultural land with several farming practices. In the rice cultivation technique, the irrigation water management showed good effect on GHGs emission reduction in paddy field. It also evaluated reduction efficiency of source of nitrogen supply and soil improvement. The intermittent irrigation showed 25.1% carbon reduction efficiency as compared to continuously flooded treatment. Slow release fertilizer and ammonium sulphate decreased carbon emission by 19.8% and 7.9% compared to urea, respectively. With soil amendments treatment, silicate fertilizer and zeolite reduced carbon emission 14.1% and 21.7% compared to rice straw treatment. In the upland crop cultivation technique, the efficiency of tillage management, green manure, livestock compost and nitrification inhibitor application were estimated. Substitution of 50% of nitrogen with hairy vetch showed 65.6% carbon reduction efficiency. It also showed 20.4% emission reduction with nitrification inhibitor treatment. However, GHGs emission were increased with livestock compost application. It provided basic data for reducing the GHGs emission in agriculture sector by accomplishing low carbon farming technique and policy project.

Comparative genomics of four lactic acid bacteria identified with Vitek MS (MALDI-TOF) and whole-genome sequencing

“…However, 16 S rRNA gene sequencing results showed that D4 has high similarity to L. plantarum ATCC 14917T and L. pentosus ATCC 8041T at 99.05% and 98.98%, respectively. D5 was also similar to L. pentosus ATCC 8041T and L. plantarum ATCC 14917T at 98.71% and 98.64%, respectively (Lee et al 2017 ).…”

“…All media were incubated for 24 h at 37 °C under anaerobic conditions. Colonies were stored at -20 °C in MRS broth containing 30% glycerol (v/v) for long-term storage (Lee et al 2017 ). All bacteria were subjected to Gram staining and catalase activity control with 3% H 2 O 2 .…”

Mitigating atmospheric methane emissions from Asian rice fields: a review of potential and promising technical options

“…Further, a study in Korean upland rice fields found that intermittent irrigation reduces 25.1% GHG emissions compared to continuous flooded treatment (Lee et al, 2020). Flooded soil also lowers redox potentials that restrict the aerobic zone around the roots and allows anaerobic organisms to decompose the resulting exudate and debris to methane (Trolldenier, 1995).…”

“…It is proven that in a hectare of rice field, five tonnes of rice straw could increase methane emission 10-fold compared with mineral fertilizers (Neue et al, 1996). In addition, silicate and zeolite could reduce GHG emissions by 14.1% and 21.7% in the rice field and additional salt, sulfate, N, Fe, gypsum, Mn4+, and SO42-containing fertilizers also could reduce methane emissions (Lee et al, 2020;Minamikawa et al, 2006;van der Gon, 1996;Wihardjaka, 2016). More evidence from Japan supported that methane emissions vary in the different soil types with the same cultivation and irrigation types (Yagi & Minami, 1991).…”

Effect of Biochar on Nitrous Oxide Emissions under Anaerobic and Aerobic Conditions in Cropland of East Asia: A Meta-Analysis

“…현재까지 연구되고 있는 영농 관리 기술로써 농경지 무경운 기술 (Lee et al, 2010(Lee et al, , 2019Kim et al, 2012;Feng et al, 2018), 휴경기 녹비작물 재배 및 환원 (Lee et al, 2019;Arif et al, 2021), 관개 관리 등 여러 기술들이 연구되어왔 다 (Pandey et al, 2014;Lee et al, 2020a;Gwon et al, 2021). 이와 같은 전통적인 영농 관리 기술과 함께 근래에 바이 오차를 활용한 온실가스 감축 기술도 주목받고 있다 (Woo, 2013;Lee et al, 2020bLee et al, , 2021b.…”