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- W78782014 abstract "AN ESTIMATION of potential sugarcane residues available to be used as soil mulch and biofuel is very important in order to define management strategies that ensure sustainable development of both agriculture and energy. The purpose of this study was to determine sugarcane dry trash quantity before green harvesting for the most important varieties in the sugarcane-growing area of Tucuman (LCP 85-384 (50%), TUC 77-42 (23%), CP 65-357 (18%) and the recently introduced RA 87-3 (4%)). Assessments of dry matter trash were made before and after harvest in 2005 and 2006 during harvesting periods (May to October). In each variety, evaluations were made taking different productivity levels into consideration. Results showed that, with increasing cane yield/ha, dry matter trash quantity per hectare before harvesting increased, but simultaneously the Dry Trash/Cane Yield (DT/CY) ratio in standing cane decreased. The quantity of dry trash before harvest ranged from 6.9 to 16.0 t/ha respectively and was variable among varieties and especially between production levels. LCP 85-384 and CP 65-357 showed higher potential trash yield than the other varieties, including RA 87-3, which recorded the lowest potential trash yield. In general, dry trash amount increased linearly with cane yield (significant at p=0.05). Up to a cane yield of 8590 tc/ha, the increase rates among varieties were similar and ranged between 14.6 and 16.2 kg of potential dry trash per tonne of cane yield. Results suggest that dry matter trash available in commercial canefields after green harvesting can be estimated using cane yield, but use of the DT/CY ratio to estimate potential trash availability is limited. Introduction An estimation of potential sugarcane residue available to be used as soil mulch and as biofuel is very important in order to define agroindustrial management strategies that ensure sustainable development of both agriculture and energy (Ripoli et al., 2000; Robertson, 2003; Dias Paes and Oliveira, 2005). Variability in trash yield is very high due to several factors: varieties, production levels, crop age, management variability, differences in harvesting system, and operational efficiency. In this way, the quantity of trash remaining in fields after green harvesting would be considered as a function of the amount of available trash prior to cane harvesting and the harvesting process itself. With the aim of excluding the effect of harvesting conditions on the biomass residue estimate, research was carried out to determine the amount of dry trash available in canefields before harvesting in the sugarcane-growing area of Tucuman for the main cultivated varieties (LCP" @default.
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- W78782014 date "2007-01-01" @default.
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- W78782014 title "Sugarcane potential trash estimation: variety and cane yield effect." @default.
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