PT - JOURNAL ARTICLE AU - Rattan Lal TI - Negative emission farming AID - 10.2489/jswc.2021.0419A DP - 2021 May 01 TA - Journal of Soil and Water Conservation PG - 61A--64A VI - 76 IP - 3 4099 - http://www.jswconline.org/content/76/3/61A.short 4100 - http://www.jswconline.org/content/76/3/61A.full