Treatments | Number of samples | Cane age (month) | Leaf nitrogen content ( % ) | |
Crop season 2009/2010 | Crop season 2009/2010 | |||
Continuous injection of the dissolved urea | 9 | 6 | 2.8 | 2.7 |
Injection of the urea during the first half of irrigation time | 9 | 6 | 2.4 | 2.4 |
Injection of the urea during the second half of irrigation time. | 9 | 6 | 2.2 | 2.0 |
Mechanical application of urea | 9 | 6 | 1.5 | 1.7 |
Mean | 2.2 | 2.2 | ||
CV % | 14 | 16.7 | ||
SE+ | 0.16 | 0.15 |