Value of cane trash in nitrogen nutrition of sugar cane
| MSI99P0209 | |
| Ng Kee Kwong, K. F. Deville, J. Cavalot, P. C. Rivière, V. | |
| Value of cane trash in nitrogen nutrition of sugar cane | |
| Periodical article | |
| 1987 | |
| Plant and Soil | |
| 0032-079X | |
| 102(1): 79-83 | |
| EN | |
| En | |
| The significance of trash containing 0.3 to 0.5 per cent N in the N nutrition of sugarcane (Saccharum hybrid sp.) was investigated in pot- and field experiments using 15 N-labelled trash. The data obtained from the pot study with 2 silty-clay loams (a Humic Nitosol and a Humic Acrisol) showed that surface-applied trash (10 tonnes/ha), although ground to pass a 1-mm sieve, contributed less that 10 per cent of N removed by sugarcane. Uptake of trash N was most active during the initial 6 months of the experiment though at the end of the study period of 18 months less than 15 per cent of trash N was altogether recovered by sugarcane. In the absence of fertilizer N in a field study on the Humic Acrisol (C/N ratio 22), unground trash (5 tonnes/ha) depressed soil N uptake by sugarcane by immobilizing available soil N. The field study moreover confirmed that the contribution of trash N in the supply of N to sugarcane is negligible. The value of trash would reside in its capacity to increase over the long term the organic matter level in the soils. | |
| SUGARCANE SUGARCANE TRASH NITROGEN NITROGEN UPTAKE MINERALIZATION PLANT NUTRITION | |
| MAURITIUS | |
| Sugarcane: Soils and plant nutrition | |
| Fertilization: Nitrogen | |
| 1992-02-14 | |
| En | |
| Mauritius Sugar Industry Research Institute | |
| LIB | |
| CAT | |
| 1 | |
| CHEM |