Major crop | Fertilizer application | Mean yield (t ha−1) | ||||
---|---|---|---|---|---|---|
Damot Gale | Damot Sore | Sodo Zuria | Overall Mean ± SD | F test | ||
Maize (195) | No | 0.76 ± 0.3 | 0.52 ± 0.2 | 0.26 ± 0.16 | 0.55 ± 0.31 | 63.9*** |
Yes | 2.54 ± 0.9 | 1.95 ± 0.64 | 1.54 ± 0.50 | 2.08 ± 0.81 | 27.2*** | |
t test | *** | *** | *** | *** | ||
Teff (105) | No | 0.17 ± 0.09 | 0.16 ± 0.09 | 0.08 ± 0.11 | 0.15 ± 0.10 | 7.4*** |
Yes | 0.73 ± 0.23 | 0.69 ± 0.15 | 0.65 ± 0.19 | 0.70 ± 0.19 | 1.3NS | |
t test | *** | *** | *** | *** | ||
Wheat (62) | No | 0.50 ± 0.3 | 0.46 ± 0.25 | 0.18 ± 0.16 | 0.45 ± 0.28 | 3.4* |
Yes | 1.9 ± 0.65 | 1.93 ± 0.84 | 1.05 ± 0.48 | 1.81 ± 0.74 | 3.9* | |
t test | *** | *** | ** | *** | ||
Haricot bean (244) | No | 0.37 ± 0.14 | 0.35 ± 0.13 | 0.22 ± 0.13 | 0.34 ± 0.14 | 19.6*** |
Yes | 1.14 ± 0.32 | 1.21 ± 0.33 | 0.88 ± 0.15 | 1.12 ± 0.32 | 16.2*** | |
t test | *** | *** | *** | *** | ||
Potato (42) | No | 2.56 ± 0.87 | 1.89 ± 1.09 | 0.47 ± 0.42 | 2.14 ± 1.09 | 7.4** |
Yes | 7.30 ± 2.32 | 7.63 ± 3.80 | 2.67 ± 0.61 | 7.11 ± 3.16 | 3.7* | |
t test | *** | *** | ** | *** | ||
Sweet potato (46) | No | 4.11 ± 1.68 | 4.59 ± 2.34 | 5.52 ± 2.55 | 4.69 ± 2.28 | 0.9NS |
Yes | 9.88 ± 3.04 | 11.13 ± 3.76 | 12.23 ± 4.12 | 11.13 ± 3.71 | 0.8NS | |
t test | *** | *** | *** | *** | ||
Taro (58) | No | 4.43 ± 1.96 | 5.89 ± 2.43 | 8.20 ± 6.34 | 5.73 ± 2.96 | 3.4* |
Yes | 13.41 ± 7.09 | 13.03 ± 3.28 | 15.20 ± 3.35 | 13.33 ± 4.68 | 0.5NS | |
t test | *** | *** | * | *** | ||
Coffee (37) | Yes (FYM) | 0.56 ± 0.16 | 0.42 ± 0.10 | 0.49 ± 0.25 | 4.9 ± 1.5 | 4.3* |