TY - JOUR T1 - Biochar and Glomus caledonium influence Cd accumulation of upland kangkong (Ipomoea aquatica Forsk.) intercropped with Alfred stonecrop (Sedum alfredii Hance). AU - Hu,Junli, AU - Wu,Fuyong, AU - Wu,Shengchun, AU - Lam,Cheung Lung, AU - Lin,Xiangui, AU - Wong,Ming Hung, Y1 - 2014/04/14/ PY - 2014/02/11/received PY - 2014/03/24/accepted PY - 2014/4/15/entrez PY - 2014/4/15/pubmed PY - 2015/11/6/medline SP - 4671 EP - 4671 JF - Scientific reports JO - Sci Rep VL - 4 N2 - Both biochar application and mycorrhizal inoculation have been proposed to improve plant growth and alter bioaccumulation of toxic metals. A greenhouse pot trial was conducted to investigate growth and Cd accumulation of upland kangkong (Ipomoea aquatica Forsk.) intercropped with Alfred stonecrop (Sedum alfredii Hance) in a Cd-contaminated soil inoculated with Glomus caledonium and/or applied with biochar. Compared with the monocultural control, intercropping with stonecrop (IS) decreased kangkong Cd acquisition via rhizosphere competition, and also decreased kangkong yield. Gc inoculation (+M) accelerated growth and Cd acquisition of stonecrop, and hence resulted in further decreases in kangkong Cd acquisition. Regardless of IS and +M, biochar addition (+B) increased kangkong yield via elevating soil available P, and decreased soil Cd phytoavailability and kangkong Cd concentration via increasing soil pH. Compared with the control, the treatment of IS + M + B had a substantially higher kangkong yield (+25.5%) with a lower Cd concentration (-62.7%). Gc generated additive effects on soil alkalinization and Cd stabilization to biochar, causing lower DTPA-extractable (phytoavailable) Cd concentrations and post-harvest transfer risks. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/24728157/Biochar_and_Glomus_caledonium_influence_Cd_accumulation_of_upland_kangkong__Ipomoea_aquatica_Forsk___intercropped_with_Alfred_stonecrop__Sedum_alfredii_Hance__ DB - PRIME DP - Unbound Medicine ER -