Combined use of companion planting and PGPR for the assisted phytoextraction of trace metals (Zn, Pb, Cd).

Combined use of companion planting and PGPR for the assisted phytoextraction of trace metals (Zn, Pb, Cd). Environ Sci Pollut Res Int. 2020 Feb 08;: Authors: Konkolewska A, Piechalak A, Ciszewska L, Antos-Krzemińska N, Skrzypczak T, Hanć A, Sitko K, Małkowski E, Barałkiewicz D, Małecka A Abstract Biomass production and metal accumulation in plant tissue (bioconcentration) are two critical factors limiting the phytoextraction rate. Metal translocation to aboveground organs should be accounted for as the third most important factor, as harvesting of the plant roots is usually economically disadvantageous. These three parameters could be potentially increased with the use of companion planting, a well-known agricultural technique, and inoculation with plant growth-promoting bacteria (PGPB). The aim of the study was to determine whether intercropping and inoculation with endophytic PGPB (Burkholderia phytofirmans PsJNT) can increase the efficiency of phytoextraction of Zn, Pb, and Cd. The study was conducted on Brassica juncea (L.) Czern. "Małopolska" grown in a monoculture or co-planted with Zea mays L. "Codimon" and Medicago sativa L. "Sanditi." Results show that companion planting and inoculation with rhizobacteria can increase the efficiency of metal phytoextraction, mainly by increasing the yield of dry biomass and the survival rate of plants grown on contaminated soil. We have shown that the simultaneous planting of B. juncea...
Source: Environmental Science and Pollution Research International - Category: Environmental Health Authors: Tags: Environ Sci Pollut Res Int Source Type: research