Research Article
Nitrogen Fertilizer Rate and Cultivar Interaction Effects on Nitrogen Recovery, Utilization Efficiency, and Agronomic Performance of Spring Barley
Table 1
Monthly rainfall (mm), mean air temperature, and soil characteristics of the Lacombe experimental site during 1994 to 1996.
| | Variable | Year | | 1994 | 1995 | 1996 |
| | Monthly rainfall (mm) | | | | | May | 21 | 42 | 54 | | June | 18 | 45 | 22 | | July | 55 | 81 | 34 | | August | 94 | 83 | 3 |
| | Monthly mean air temperature (°C) | | | | | May | 11.6 | 10.0 | 7.0 | | June | 14.8 | 14.8 | 13.3 | | July | 17.0 | 15.4 | 15.9 | | August | 15.6 | 12.3 | 15.9 |
| | Soil characteristics | | | | | Nitrate-N (kg ha−1) | 64 | 45 | 42 | | Phosphate (kg ha−1) | 72 | 38 | 13 | | Potassium (kg ha−1) | 510 | 225 | 227 | | Sulphate-S (kg ha−1) | 76 | 179 | 179 | | pH | 6.9 | 8.1 | 6.6 | | Electrical conductivity (dS/m) | 0.6 | 0.3 | 0.8 | | Organic matter (%) | 8.0 | 10.6 | 8.3 |
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