Research Article
Effect of Urea, NPK and Compost on Growth and Yield of Soybean (Glycine max L.), in Semi-Arid Region of Sudan
Table 1
Full approximate analysis of soil in depth of 30 cm after sowing, season 2010/2011.
| Treatments | PH | Ece | Na meq/L | Ca+mg meq/L | K meq/L | CO2 meq/L | HCO3 meq/L | Cl meq/L | P ppm | CaCO3 | N % | Sand % | Clay % | Silt % |
| Urea | 7.66 | 2.07 | 15.50 | 8.93 | 0.01 | 0.30 | 3.97 | 15.35 | 6.00 | 2.09 | 0.06 | 18 | 60.33 | 21.67 | Compost | 7.74 | 1.94 | 14.20 | 8.30 | 0.03 | 0.30 | 4.83 | 14.23 | 5.05 | 2.09 | 0.07 | 18 | 61.50 | 20.50 | NPK | 7.79 | 1.68 | 11.78 | 7.98 | 0.02 | 0.20 | 3.98 | 11.90 | 5.53 | 2.32 | 0.06 | 17 | 62.00 | 21.00 | Control | 7.74 | 2.05 | 14.90 | 9.10 | 0.02 | 0.35 | 5.35 | 14.78 | 4.58 | 2.31 | 0.06 | 17 | 62.25 | 20.75 | LSD | 0.26 | 0.62 | 7.38 | 2.52 | 0.01 | 0.28 | 2.41 | 6.47 | 1.94 | 0.98 | 0.01 | 1.92 | 4.09 | 2.82 | CV% | 2.10 | 19.93 | 32.74 | 18.34 | 42.36 | 60.98 | 33.19 | 28.75 | 22.89 | 27.91 | 14.11 | 6.87 | 4.15 | 8.39 | SE+ | 0.16 | 0.39 | 4.61 | 1.57 | 0 | 0.17 | 1.50 | 4.04 | 1.21 | 0.61 | 0 | 1.20 | 2.55 | 1.76 | Mean before sowing | 7.91 | 1.29 | 10.88 | 4.62 | 0.01 | 0.02 | 0.8 | 10.61 | 2.4 | 1.64 | 0.05 | 18.3 | 61.8 | 19.9 |
|
|
*= significant, **= highly significant, ns = nonsignificant, LSD = least significant difference, CV% = coefficient of variation, and SE± = standard error.
|