Table 6 Rhizosphere soil available phosphorus and pH of silage corn and forage soybean cultivated as monocropp and intercrop during the growing seasons.

From: The potential of corn-soybean intercropping to improve the soil health status and biomass production in cool climate boreal ecosystems

Treatments

Growing Season (2016–17)

RS-Pavailable

RS-pH

C1

46.70 ± 1.94e

5.58 ± 0.08

C2

41.27 ± 1.26e

5.63 ± 0.18

S1

76.16 ± 5.94b

5.79 ± 0.14

S2

45.52 ± 3.80e

5.89 ± 0.27

S3

65.54 ± 1.61cd

5.78 ± 0.23

S1C1

81.78 ± 1.82ab

5.27 ± 0.07

S2C1

81.87 ± 3.23ab

5.44 ± 0.26

S3C1

60.13 ± 2.31d

5.67 ± 0.21

S1C2

91.44 ± 5.33

5.61 ± 0.20

S2C2

74.65 ± 5.36bc

5.49 ± 0.25

S3C2

72.88 ± 2.60bc

5.48 ± 0.17

Mono-(US)

60.84 ± 5.71

5.84 ± 0.15

Mono-(VS)

65.54 ± 1.61

5.78 ± 0.23

Inter-(US)

82.44 ± 2.32A

5.45 ± 0.10

Inter-(VS)

66.50 ± 2.54B

5.57 ± 0.13

Mono-S

62.41 ± 3.82B

5.82 ± 0.12A

Mono-C

43.99 ± 1.37C

5.61 ± 0.09AB

Inter-(C + S)

77.12 ± 2.16A

5.49 ± 0.08B

  1. Values are means ± standard errors. Mean values in each column followed by the same superscripts are not significantly different at alpha 0.05. C: corn; S: soybean; C + S: corn + soybean; C1: Yukon-R; C2: DKC26-28RIB; S1: Big Fellow RR; S2: Game Keeper RR; S3: Kester’s Bob White Trailing Soybean; S1C1: Big Fellow RR + Yukon-R; S2C1: Game Keeper RR + Yukon-R; S3C1: Kester’s Bob White Trailing Soybean + Yukon-R; S1C2: Big Fellow RR + DKC26-28RIB; S2C2: Game Keeper RR + DKC26-28RIB; S3C2: Kester’s Bob White Trailing Soybean + DKC26-28RIB; Mono-C: monocropping corn; Mono-S: monocropping soybean; Inter(C + S): corn-soybean intercropping; Mono-(US): monocropping upright soybean; Mono-(VS): monocropping vine soybean; Inter-(US): intercropped upright soybean; Inter-(VS): intercropped vine soybean. Soil available phosphorus: RS-Pavailable.