Table 4 Nutrient concentrations in stem extract 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) | P (mg/kg) | K (mg/kg) | S (mg/kg) | NH4+-N (mg/kg) | NO3−-N (mg/kg) | |
|---|---|---|---|---|---|---|---|
Low fertilizer (N0) | 21.7 ± 2.04 b | 22.6 ± 2.76 ab | 12.0 ± 2.45 ab | 118 ± 24.8 a | 9.31 ± 3.74 a | 50.4 ± 5.89 b | 2.88 ± 1.87 b |
Control (N1) | 25.8 ± 5.11 ab | 27.0 ± 2.23 a | 15.2 ± 3.80 a | 155 ± 23.4 a | 9.84 ± 3.57 a | 42.5 ± 4.52 bc | 6.30 ± 1.28 b |
Conventional (N2) | 19.3 ± 1.01 b | 17.0 ± 4.37 b | 7.95 ± 2.31 b | 114 ± 21.3 a | 8.59 ± 1.64 a | 35.0 ± 1.95 c | 11.4 ± 3.81 b |
High fertilizer (N3) | 30.9 ± 2.98 a | 24.9 ± 4.17 a | 15.2 ± 2.04 a | 131 ± 1.07 a | 6.97 ± 2.25 a | 64.5 ± 2.90 a | 42.8 ± 6.78 a |