Table 5.
Adjusted means, mean grouping by letters (±s.e.m.) for the five fertilizer treatments for yield and crude protein for analyses across years and per year
| Fertilizer | No. of Appl. | Mean | |||||
|---|---|---|---|---|---|---|---|
| 2007–2010 | 2007 | 2008 | 2009 | 2010 | |||
| Yield | CAN | 1 | 79·2±5·47 | 85·2±3·89 | 92·8±4·35 | 68·6±4·67 | 71·6±3·00 |
| CAN | 2 | 79·5±5·5 | – | – | 67·7±4·99 | 72·7±3·10 | |
| CAN | 3 | 80·3±5·4 | 83·7±3·70 | 95·6±3·93a | 70·0±4·67 | 73·3±3·00 | |
| Urea | 1 | 79·6±5·5 | 84·9±3·63 | 91·6±3·64a | 69·6±4·84 | 68·3±4·95 | |
| UAN | 1 | 80·8±5·48 | 84·9±3·63 | 95·5±3·46 | 69·3±4·81 | 73·7±3·21 | |
| Crude Protein | CAN | 1 | 13·0±0·62a | 14·2±0·39a | 11·1±0·63a | 12·5±0·35ab | 14·1±0·36a |
| CAN | 2 | 13·3±0·66a | – | – | 12·9±0·47ab | 14·5±0·38ab | |
| CAN | 3 | 13·6±0·61a | 13·8±0·36ab | 12·5±0·51a | 13·2±0·35a | 14·9±0·36b | |
| Urea | 1 | 12·9±0·62a | 13·1±0·35b | 11·8±0·51a | 11·9±0·42 | 15·7±0·72b | |
| UAN | 1 | 13·3±0·61a | 13·8±0·35a | 12·1±0·46a | 12·6±0·41b | 14·9±0·40b | |
*
Means within a column and trait showing a common letter are not significantly different according to a Tukey test. No significant differences were found for yield.