Table 1 Soil properties of silty clay loam soil used in greenhouse study.

From: Soil phosphorus availability as affected by root exudates of cover crop species

Parameters

Value (± SE)

pH

6.9 (± 0.07)

Sikora pH

7.3 (± 0)

Mehlich 3 P, mg kg−1

4.6 (± 1.95)

Total N, g kg−1

1.6 (± 0.14)

NO3-N, mg kg−1

7.06 (± 2.84)

NH4-N, mg kg−11

5.96 (± 1.43)

Total organic carbon (TOC), g kg−1

10.62 (± 1.7)

Exchangable K, mg kg−1

177 (± 23.73)

Cation exchange capacity (CEC) cmol kg−1

18.24 (± 0)

Exchangeable Ca, mg kg− 1

3093 (± 169.07)

Exchangeable Mg, mg kg−1

355 (± 14.95)

Exchangeable Na, mg kg−1

10 (± 1.48)

Soil texture

Silty clay loam

  1. Soil texture was determined using the hydrometer method, pH was measured in a 1:10 soil: water suspension, and buffer pH was determined using the Sikora method34. Soil test P (STP) was assessed using the Mehlich−3 method35, TOC content was measured through a dry combustion method36 and soil inorganic nitrogen (NH4−N and NO3−N) was determined after extraction with KCL37. Exchangeable cations extracted with ammonium acetate were measured using ICP−OES, and cation exchange capacity was determined through the summation method. Phosphorus in the Mehlich 3 extract was determined with the molybdate−blue colorimetric method.
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