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Table 3 The combination effect of mineral oil, potassium sulfate, and calcium sulfate on leaf micro-elements of Sultana grapevine

From: Effects of foliar spray of agricultural grade mineral oil in springtime, in combination with potassium and calcium sulfates on the phenological and biophysical indices of clusters, and foliar nutritional levels in grapevine (Vitis vinifera L.) cv. Sultana (Id. Thompson seedless, Sultanina)

Treatment Fe
(ppm)
Zn
(ppm)
Mn
(ppm)
2017 2018 2017 2018 2017 2018
V0K0C0 116.3 d 118.5 d 54.52 c 55.46 cd 111.5 c 112.6 c
V0K1C0 125.1 cd 120.6 c 59.53 b 58.40 c 120.2 b 123.1 b
V0K0C1 112.3 d 115.5 d 53.50 c 55.05 cd 112.7 c 117.5 bc
V0K1C1 121.5 d 130.1 b 52.30 c 51.10 d 133.3 a 136.5 a
V1K0C0 148.0 a 146.5 a 69.87 a 68.62 a 112.2 c 116.3 bc
V1K1C0 144.7 ab 143.6 a 68.15 a 67.21 a 117.2 bc 120.7 b
V1K0C1 132.2 abc 135.70 b 61.88 b 63.45 b 120.5 b 120.2 b
V1K1C1 140.2 abc 145.9 a 58.22 b 67.55 ab 124.3 b 125.3 b
  1. The means with common letters in each column according to Duncan's test are not significantly different (P < 0.05). V0 = 0.00% mineral oil, V1 = 1.00% mineral oil; K0 = 0.00% K2SO4, K1 = 3.00% K2SO4; C0 = 0.00% CaSO4, C1 = 2.00% CaSO4