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Table 3 Nutrient concentrations of soil with different amount of fertilizer applications

From: Electrical signal of pepper during cropping period affected by different amount of fertilizer

 

Ca (mg/kg)

Mg (mg/kg)

K (mg/kg)

NH4+-N (mg/kg)

NO3-N (mg/kg)

Extraction

Water

NH4OAC

Water

NH4OAC

Water

NH4OAC

KCl

KCl

Low fertilizer (N0)

11.3 ± 1.47 ab

785 ± 109 a

5.83 ± 0.39 ab

377 ± 53.5 a

36.6 ± 6.58 a

325 ± 36 a

18.1 ± 2.60 a

5.77 ± 1.74 b

Control (N1)

8.88 ± 1.27 ab

742 ± 93.9 a

4.77 ± 0.96 b

296 ± 56.0 a

25.7 ± 11.8 a

254 ± 43 a

17.4 ± 2.40 a

4.47 ± 2.98 b

Conventional (N2)

5.23 ± 3.14 b

708 ± 6.82 a

2.43 ± 0.65 b

314 ± 52.5 a

15.7 ± 3.49 a

270 ± 43 a

15.1 ± 0.57 a

2.37 ± 1.37 b

High fertilizer (N3)

19.8 ± 7.89 a

874 ± 20.0 a

10.1 ± 3.46 a

401 ± 38.8 a

24.7 ± 13.5 a

246 ± 35 a

17.3 ± 2.45 a

44.2 ± 12.8 a

  1. Different letters in the same column indicate significant differences among samples using one-way ANOVA followed by Duncan's multiple range test (p<0.05)