MSI99P1611 | |
Ng Kee Kwong, K. F. Deville, J. | |
Application of 15N-labelled urea to sugar cane through a drip-irrigation system in Mauritius | |
Periodical article | |
1994 | |
Fert. Res. | |
0167-1731 | |
39(3), 223-228 | |
En | |
En | |
Nitrogen (N) fertilizer use efficiency by sugar cane in Mauritius rarely exceeds 40 per cent. Since drip-irrigation delivers water uniformly and directly to the root zone with little run-off, application of N via the drip-irrigation system could therefore provide a means of enhancing fertilizer N use by sugar cane. A study was initiated in Mauritius to determine what benefits would accrue from applying urea (120 kg N per ha) to sugar cane through the drip-irrigation network. The data obtained showed that the efficiency of fertilizer N when measured at harvest was nearly doubled by supplying the N daily over 10 to 20 weeks by fertigation. Increased yields of sugar or cane did not, however, accompany the improved N use efficiency. Furthermore, when N was applied through the drip-irrigation network, recovery of N at harvest did not accurately reflect N use efficiency. | |
SUGARCANE NITROGEN FERTILIZERS FERTILIZERS PLANT NUTRITION TRICKLE IRRIGATION | |
MAURITIUS | |
Sugarcane: Soils and plant nutrition | |
Fertilization: Nitrogen | |
1994-12-26 | |
En | |
CHEMLIB | |
CAT | |
CHEM |