Research Article
Physiological Evaluations of Maize Hybrids under Low Nitrogen
Table 3
Physical and chemical properties of soil at Tudun Wada and Zaria during 2014 and 2016 rainy season.
| | Tudun Wada | Zaria | Year | 2014 | 2016 | 2014 | 2016 |
| Physical properties (g kg-1) | | | | | Sand | 490 | 90 | 450 | 560 | Silt | 420 | 570 | 190 | 190 | Clay | 90 | 340 | 360 | 250 | Textural class | Clay loam | Silty clay | Sandy clay loam | Sandy clay loam |
| Chemical properties | | | | | PH in H20 1;1 | 6.60 | 6.18 | 5.80 | 5.54 | Organic carbon (mg kg−1) | 2.40 | 8.10 | 7.70 | 10.19 | Total N (mg kg−1) | 0.36 | 0.070 | 0.59 | 0.109 | Available P (mg kg−1) | 3.70 | 6.15 | 10.45 | 16.11 |
| Exchangeable bases (cmol kg-1) | | | | | Ca++ | 2.86 | 0.15 | 4.78 | 0.57 | K+ | 0.03 | 0.03 | 0.03 | 0.06 | Na++ | 0.11 | 0.56 | 0.13 | 0.53 | Mg++ | 0.84 | 0.88 | 1.00 | 1.90 | ECEC | 3.88 | 1.62 | 3.29 | 3.07 |
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Key. ECEC: effective cation exchange capacity.
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