Use of chlorophyll meters to monitor the nitrogen status of sugar cane
| MSI01P3588 | |
| Ng Kee Kwong, K. F. Paul, J. P. Mooniaruck, A. Chong Shin Sen, P. | |
| Use of chlorophyll meters to monitor the nitrogen status of sugar cane | |
| 24th ISSCT Congress, Brisbane, September 01 | |
| periodical article | |
| 2001 | |
| Proc. int. Soc. Sug. Cane Technol. | |
| 24(2): 27-32 | |
| En | |
| En Fr Es | |
| As leaf greenness can now be measured instantaneously by the chlorophyll meter, the latter technology, if applicable to sugar cane, would not only enable a sugar cane field to be sampled quickly and easily but would also provide the opportunity to fine-tune its fertilizer nitrogen (N) management at short notice during the growth period in response to changing weather conditions in Mauritius. The results obtained in Mauritius showed that, as is the case for leaf N concentration, sites as well as variety and age of sugar cane affected chlorophyll meter readings. Furthermore, the correlation between leaf N concentrations and chlorophyll meter readings was so poor that the latter could not serve as surrogte for leaf N levels. Though the chlorophyll meter readings increased with rates of N applied, the narrow ranges of values did not clearly separate adequately fertiliser from N deficient sugar cane. Nevertheless, the fact that sugar cane leaf greenness attained a plateau when its yield response to N fertilizers reached a maximum indicated that the chlorophyll meter has a potential for the prediction of yield. To achieve that potential, further resarch is requirted to calibrate the meter readings over the wide range of soil and climate conditions existing in Mauritius. | |
| sugarcane plant nutrition nutrient management chlorophyll meters nitrogen foliar diagnosis fertilizers | |
| Mauritius | |
| Sugarcane | |
| Plant nutrition | |
| 2001-09-25 | |
| En | |
| cat | |
| CHEM |