Table 1 Soil chemical properties (0–10 cm) at quaker research farm, Lubbock, TX.

From: Influence of deficit irrigation and biochar amendment on growth, physiology, and yield of cucumber in West Texas

Characteristics of soil

Parameters value

pH

8.3

Cation Exchange Capacity (CEC)

17.8 cmol (+)/kg

Organic Matter

0.20%

NO3−Nitrogen (N)

8 mg/kg

Phosphorus (P)

35 mg/kg

Potassium (K)

503 mg/kg

Magnesium (Mg)

646 mg/kg

Calcium (Ca)

2236 mg/kg

  1. Note: Procedure for analysis of soil pH (Saturated paste), CEC (Ammonium replacement), organic matter (Loss of ignition at 360℃), NO3− Nitrogen (2.0 N KCl/Cadmium Reduction), and phosphorus, potassium, magnesium, calcium (1.0 N ammonium acetate @ pH 7.0) reference to North American Proficiency Testing (NAPT) Program (https://www.naptprogram.org/).
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