Figures (1)  Tables (2)
    • Figure 1. 

      The relationship between the cumulative variance function of each element and standardized TSS. (a)−(f) represent cumulative variance function of FBS_L_N, MS_L_P, FBS_L_K, MS_F_Ca, FBS_P_Mg and R of plants, respectively. (g)−(l) represent GS_N, GS_P, IFS_K, VS_Ca, MS_Mg and R of soil, respectively.

    • TreatmentYear
      2019-TSS %2020-TSS %2021-TSS %
      T123.7 ± 0.8d22.6 ± 0.8bc19.3 ± 0.9abc
      T226.5 ± 0.5a24.3 ± 1.2a19.4 ± 0.6ab
      T325.8 ± 1.1abc22.4 ± 0.8bc19.2 ± 0.1abcd
      T425.5 ± 0.0abc21.9 ± 0.7bc19.3 ± 0.2abc
      T525.8 ± 0.0abc21.6 ± 1.0c19.7 ± 0.4a
      T625.2 ± 1.0bc21.8 ± 0.7bc18.4 ± 0.1cde
      T726.4 ± 0.9a22.7 ± 0.1bc19.1 ± 0.9abcd
      T826.4 ± 0.4ab22.6 ± 0.6bc18.9 ± 0.3abcd
      T926.4 ± 0.8ab22.4 ± 0.1bc18.7 ± 0.6bcd
      T1025.2 ± 0.0bc23.1 ± 0.7b18.8 ± 0.1abcd
      T1125.5 ± 0.2abc22.3 ± 0.2bc19.0 ± 0.4abcd
      T1223.8 ± 0.4d21.8 ± 0.7bc17.6 ± 0.4e
      T1324.9 ± 0.9c21.9 ± 0.4bc18.3 ± 0.6de
      T1422.6 ± 0.6e22.0 ± 0.7bc18.3 ± 0.5de
      T1525.1 ± 0.5c22.5 ± 1.1bc19.0 ± 0.4abcd
      T1625.2 ± 0.7bc22.2 ± 0.3bc18.9 ± 0.6abcd
      Different lowercase letters in the same column of data indicate the significant difference between different treatments at the P < 0.05 level.

      Table 2. 

      Effects of fertilization treatments on fruit TSS in 2019−2021.

    • TypeFactorsFCi(Vx) = AY3 + BY2 + CY + DR2Determined cutoffOptimum range mg/g
      PlantFBS_L_NFCi(VN) = −31.736Y3 + 84.935Y2 − 145.17Y + 97.1530.98090.892122.728−42.140
      MS_L_PFCi(VP) = −70.578Y3 + 203.17Y2 − 244.62Y + 118.040.97380.95960.273−8.227
      FBS_L_KFCi(VK) = −53.314Y3 + 25.432Y2 − 58.365Y + 99.830.97880.15907.850−25.124
      MS_F_CaFCi(VCa) = 14.076Y3 + 7.8741Y2 − 118.67Y + 105.490.9836−0.18653.192−39.975
      FBS_P_MgFCi(VMg) = −69.267Y3 + 124.76Y2 − 150.6Y + 107.080.98250.60045.529−19.833
      RFCi(VR) = 130.83Y3 − 165.36Y2 − 63.877Y + 102.510.98620.4213
      SoilGS_NFCi(VN) = −0.8414Y3 + 32.934Y2 − 126.17Y + 103.080.984013.04730.042−0.084
      GS_PFCi(VP) = −72.966Y3 + 183.23Y2 − 211.59Y + 116.630.97160.83710.043−0.204
      IFS_KFCi(VK) = 56.913Y3 − 89.616Y2 − 60.861Y + 94.5540.98600.52490.093−0.681
      VS_CaFCi(VCa) = −128.32Y3 + 242.71Y2 − 204.96Y + 100.360.97570.63052.303−6.535
      MS_MgFCi(VMg) = −82.797Y3 + 147.21Y2 − 164.05Y + 111.590.98000.59270.272−0.680
      RFCi(VR) = −7.0219Y3 + 62.55Y2 − 158.89Y + 114.170.96852.9693

      Table 3. 

      Estimation of standardized TSS based on the cumulative variance of log ratio of nutrients from 48 vineyards.