Soil property and tomato yield

Field G

Field H

Field I

Total nutrient amount and ratio

TC (mg/kg)

31,000a (±2000)

33,000a (±1730)

30,000a (±1730)

TN (mg/kg)

1000b (±170)

1600a (±100)

1700a (±87)

C/N ratio

31a (±4.2)

21b (±1.6)

18b (±1.9)

TP (mg/kg)

900b (±36)

1100b (±44)

1400a (±140)

TK (mg/kg)

3450a (±53)

3500a (±92)

3700a (±230)

Soluble nutrient

NH 4 + -N (mg/kg)

45b (±6.6)

83a (±8.2)

63ab (±7.0)

NO 3 -N (mg/kg)

8c (±2.0)

41b (±4.4)

60a (±6.6)

Soluble P (mg/kg)

14a (±3.6)

21a (±6.6)

23a (±4.6)

Soluble K (mg/kg)

46a (±4.7)

46a (±8.5)

29b (±6.2)

pH and EC

pH (1:2.5 soil-water; w/v)

5.9a (±0.15)

5.8a (±0.05)

5.7a (±0.10)

EC (ds/m)

0.1b (±0.02)

0.4a (±0.10)

0.4a (±0.04)

Tomato yield (kg/0.1 ha)

3170b (±240)

5960a (±390)

5540a (±430)