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Table 4 Effect of foliar application of B2O3 and ZnO nanoparticles on leaf minerals content of Picual cultivar in 2017 and 2018 seasons

From: Effect of foliar application of boron trioxide and zinc oxide nanoparticles on leaves chemical composition, yield and fruit quality of Olea europaea L. cv. Picual

Treat. N (%) P (%) K (%) Fe (ppm) Zn (ppm) B (ppm)
2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018
T0 1.72 e 1.53 e 0.214 c 0.219 abc 1.21 d 1.27 d 297.0 b 203.7 g 26.40 g 30.26 cd 28.31 b 35.18 c
T1 1.72 e 1.66 c 0.215 c 0.224 ab 1.50 c 1.33 abcd 297.1 b 224.1 e 27.23 f 29.83 de 28.63 b 35.26 c
T2 1.84 c 1.63 cd 0.216 c 0.225 ab 1.55 bc 1.40 a 265.3 d 199.3 h 28.40 e 30.93 c 28.97 b 38.50 a
T3 1.88 b 1.60 d 0.214 c 0.203 c 1.60 ab 1.37 abc 230.6 f 197.1 i 29.16 d 30.80 c 25.03 cd 28.57 f
T4 1.86 bc 1.61 d 0.218 c 0.209 bc 1.62 ab 1.32 bcd 249.7 e 286.2 c 30.83 b 33.30 ab 25.25 c 35.11 c
T5 1.91 a 2.06 a 0.231 a 0.204 c 1.56 bc 1.28 d 305.1 a 297.6 a 28.33 e 30.23 cd 21.23 e 32.97 d
T6 1.72 e 2.04 a 0.235 a 0.231 a 1.56 bc 1.30 cd 269.0 c 212.8 f 28.06 e 29.20 e 30.35 a 33.07 d
T7 1.75 d 1.74 b 0.224 b 0.231 a 1.57 abc 1.38 ab 223.7 g 231.6 d 32.00 a 34.09 a 24.4 d 31.65 e
T8 1.84 c 1.77 b 0.232 a 0.234 a 1.64 a 1.39 ab 298.0 b 294.4 b 30.16 c 32.86 b 31.08 a 37.50 b
  1. Mean in each column with similar letters is not significantly different at 5% level
  2. T1, nano-boron at 10 ppm; T2, nano-boron at 20 ppm; T3, nano-zinc at 100 ppm; T4, nano-zinc at 200 ppm; T5, nano-boron at 10 ppm + nano-zinc at 100 ppm; T6, nano-boron at 10 ppm + nano-zinc at 200 ppm; T7, nano-boron at 20 ppm + nano-zinc at 100 ppm; T8, nano-boron at 20 ppm + nano-zinc at 200 ppm