Fig. 1

Plant nutrition is affected by a combination of rhizobial inoculant and soil edaphic factors. A Experimental design for growth and harvesting of soil, microbe and plant material. Seeds were germinated in plates for 2 days and moved to perlite pots, inoculated 1 day later, then moved to soil 11 days later. Input soil was sampled at the start of the experiment, then aboveground plant, bulk soil and microbiome samples taken at 66 days after germination. RNAseq samples were taken from perlite experiments at 11 and 21 dai. B Clustering of bulk soil edaphic factor parameters for the rhizobia-soil type combinations into 6 clusters (1S to 6S); see Supplementary Data S1 for values. C Clustering of plant nutrient levels for the rhizobia soil type combinations into 6 clusters (1P to 6P); see Supplementary Data S2 for values; soil types labelled as: WG-ocre, WS-grey and SP-navy (n = 4 pooled samples of 8 soil or plant samples for B and C)