Table 1 Soil properties and soil nutrient status (ammonium acetate–lactate (AL) extractable P, K and Mg) at the experimental site in 2018 and 2019.

From: Evidence for magnesium–phosphorus synergism and co-limitation of grain yield in wheat agriculture

Property

2018

2019

Clay (g kg−1)

145

145

Total N (g kg−1)

2.4

2.3

Total soil organic C (g kg−1)

25.9

24.7

pH (H2O)

5.8

5.7

P–AL (g kg−1)

0.034

0.038

K–AL (g kg−1)

0.109

0.110

Mg–AL (g kg−1)

0.194

0.201

  1. The soil was sampled in 0–0.3 m depth after the application of fertilization, and the 5 sampling points were different in 2018 and 2019. Fertilization with 140 kg ha−1 N, 24 kg ha−1 P and 46 kg ha−1 K was applied directly after sowing in both years. The soil organic carbon content was measured using dry combustion and infrared gas analysis (LECO).
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