Nitrogen fertilizer use by sugarcane ratoon crops in Mauritius
| MSI99P1928 | |
| Ng Kee Kwong, K. F. Deville, J. | |
| Nitrogen fertilizer use by sugarcane ratoon crops in Mauritius | |
| XXI Congress of the International Society of Sugar Cane Technologists, Bangkok, Th, 5-14 March 1992 | |
| Periodical article | |
| 1995 | |
| Proc. int. Soc. Sug. Cane Technol. | |
| 21: 42-53 | |
| En | |
| En Fr Es | |
| The influence of chemical N forms (calcium ammonium nitrate and ammonium sulphate) and time of N fertilizer application on yield and fertilizer N uptake by sugarcane ratoon crops was studied using 15N-labelled fertilizer in four field trials. The results obtained showed that the difference in chemical N form had little impact on both yield and fertilizer N recovery by sugarcane. Withholding N fertilization invariably delayed leaf canopy development and to a lesser extent tiller formation by the sugarcane. However applying the whole N dressing (100 kg N/ha) to coincide with the beginning of the rapid growth stage in December or alternatively splitting the N application so that half the N was top-dressed in September and half in February to prolong the period of rapid growth enhanced fertilizer N recovery though the improvement was not always statistically significant (P = 0.10). The observed improvement in fertilizer N use was not accompanied by a corresponding increase in cane or sugar yield. This finding suggests that to obtwin increased sugarcane yields from N fertilizer in Mauritius other parameters having a direct impact on sugarcane growth need also to be optimized. | |
| SUGARCANE NITROGEN NITROGEN FERTILIZERS NITROGEN UPTAKE PLANT NUTRITION FERTILIZERS | |
| MAURITIUS | |
| Sugarcane: Soils and plant nutrition | |
| Fertilization: Nitrogen | |
| 1995-08-04 | |
| En | |
| LIB | |
| CAT | |
| 1 | |
| CHEM |