Crops

Number of studies

n

Minimum

Maximum

Treatment yield (mean ± SD)

Barley

14

151

805.6

9804

3111 ± 1539

Maize

17

257

1494

10,900

5627.6 ± 2298

Sorghum

12

136

386

5929.7

2997.5 ± 1025

Teff

13

129

663.6

3680

1670.1 ± 640.6

Wheat

26

341

1087.8

8161

3781.5 ± 1298.8

Overall

82

1014

386

10,900

3775.8 ± 2006.4