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Table 5 Shoot dry weight (SDW) and total N accumulated in shoots (TNS) at V4 and grain yield at the maturity of maize hybrid DKB 350 YG inoculated or not Azospirillum brasilense strains Ab-V5 + Ab-V6 and supplemented or not with concentrated metabolites of Rhizobium tropici CIAT 899 (CM-RT1)

From: Biotechnological potential of rhizobial metabolites to enhance the performance of Bradyrhizobium spp. and Azospirillum brasilense inoculants with soybean and maize

Treatment/Site Bonito Ponta Grossa Três Lagoas
  V4   V4   V4  
  SDW TNS Yield SDW TNS Yield SDW TNS Yield
  (g pl –1) (mg pl –1) (kg ha –1) (g pl –1) (mg pl –1) (kg ha –1) (g pl –1) (mg pl –1) (kg ha –1)
0%N 13.1 a 402 a 5452 b 17.2 c 255 c 5708 c 7.1 c 161 b 2444 b
100%N 16.1 a 510 a 6184 ab 26.4 ab 558 ab 8483 a 9.7 a 252 a 2965 ab
75% N 12.4 a 407 a 5516 b 24.2 ab 511 b 7964 ab 9.4 ab 243 a 3010 ab
75% N + Inoculated with A. brasilense 14.0 a 412 a 5625 ab 22.1 bc 445 b 7208 b 7.9 bc 201 b 3319 a
75% N + Inoculated with A. brasilense + CM-RT1 (1 mL L–1) 11.5a 399 a 6091 ab 25.5 ab 542 ab 7707 ab 7.0 c 172 b 2972 ab
75% N + Inoculated with A. brasilense + CM-RT1 (0.1 mL L–1) 12.9 a 458 a 6561 a 29.5 a 669 a 8113 a 7.9 bc 199 b 3322 a
  1. 1 0.1 and 1.0 mL L–1 correspond to approximately 10–9 and 10–8 M of active compounds, respectively.
  2. 2 Data represent the means of six replicates and when followed by different letters within the same column are significantly different (p ≤ 0.05, Duncan’s test).
  3. All plants received 24 kg of N ha-1 at sowing and 0, 75 or 100% of N (90 kg of N ha-1) at 30 days after emergence, broadcasted. Experiment performed in three field sites in Brazil.