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. 2018 Feb 22;8:3450. doi: 10.1038/s41598-018-21848-2

Table 1.

Regional magnitudes of the metrics employed in the study for all three crops.

Metric Unit Maize Sorghum Soybean
Overall Irrigated Non-irrigated Overall Irrigated Non-irrigated Overall Irrigated Non-irrigated
Mean yield tons/ha 6.2 9.0 4.6 3.4 5.1 3.0 2.2 3.2 2.1
Yield SD tons/ha 1.8 2.0 1.7 1.0 0.9 0.9 0.6 0.6 0.6
Yield CV unitless 0.31 0.22 0.38 0.29 0.18 0.31 0.27 0.19 0.31
Yield Trend kg/ha/yr 110.93 128.34 86.77 25.07 −5.95 30.93 29.14 44.15 28.11
T trend °C/decade −0.05 −0.02 −0.04 0.09 0.26 0.10 −0.02 −0.11 −0.03
P trend mm/decade 6.00 4.98 3.76 1.65 −0.02 2.74 5.37 0.08 0.19
CEYV % 18 13 40 23 21 26 23 12 34
T sensitivity kg/ha/°C −348 40 −374 −40 −367 −113 −45 96 −70
P sensitivity kg/ha/10 mm 23 2 77 29 8 34 12 4 26
T sensitivity relative to mean yield % −4.84 0.56 −5.21 −1.11 −10.12 −3.11 −1.75 4.02 −2.94
P sensitivity relative to mean yield % 0.33 0.02 1.07 0.81 0.23 0.93 0.52 0.15 1.07
T-induced yield impacts kg/ha 105 67 59 −69 −405 −85 −11 −46 10
P-induced yield impacts kg/ha 112 8 168 58 −5 47 33 25 59
T-induced yield impacts relative to mean yield % 1.59 0.73 1.19 −2.16 −8.61 −3.68 −0.51 −1.50 0.41
P-induced yield impacts relative to mean yield % 1.96 0.09 3.42 1.61 −0.07 1.33 1.45 0.82 2.63
Climate-induced yield impacts relative to mean yield % 3.55 0.82 4.61 −0.55 −8.69 −2.35 0.94 −0.68 3.04
Role of T in overall yield trend % 2.13 1.25 1.26 −15.79 31.83 20.35 −1.10 −2.30 0.78
Role of P in overall yield trend % 1.97 0.15 4.30 3.25 2.25 −15.19 3.33 1.56 4.21
Time equivalent of role of T in overall yield trend years 47 80 79 −6 3 5 −91 −43 128
Time equivalent of role of P in overall yield trend years 51 678 23 31 44 −7 30 64 24