Efeito residual do adubo aplicado na soja (Glycine max L. Merrill) sobre a cana-de-açúcar (Saccharum spp.)

Mascarenhas, H. A. A.; Costa, Á. S.; Tanaka, Roberto Tetsuo; Ambrosano, Edmilson José; Rosa, F.V.; Costa, V.F.

doi:10.1590/s0103-90161994000200011

Cited by 2 publications

(3 citation statements)

References 2 publications

(5 reference statements)

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“…the soil is only slightly tilled in the planting row. Occasionally, legumes are planted during the reformation period to improve soil fertility and/or soil physical properties (Mascarenhas et al , 1994; Bell & Garside, 2005; Hernwong et al , 2008).…”

Section: Production Systemsmentioning

confidence: 99%

Bioethanol production from sugarcane and emissions of greenhouse gases - known and unknowns

et al. 2011

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Bioethanol production from sugarcane is discussed as an alternative energy source to reduce dependencies of regional economies on fossil fuels. Even though bioethanol production from sugarcane is considered to be a beneficial and cost-effective greenhouse gas (GHG) mitigation strategy, it is still a matter of controversy due to insufficient information on the total GHG balance of this system. Aside from the necessity to account for the impact of land use change (LUC), soil N 2 O emissions during sugarcane production and emissions of GHG due to preharvest burning may significantly impact the GHG balance. Based on a thorough literature review, we show that direct N 2 O emissions from sugarcane fields due to nitrogen (N) fertilization result in an emission factor of 3.87 AE 1.16% which is much higher than suggested by IPCC (1%). N 2 O emissions from N fertilization accounted for 40% of the total GHG emissions from ethanol-sugarcane production, with an additional 17% from trash burning. If LUC-related GHG emissions are considered, the total GHG balance turns negative mainly due to vegetation carbon losses. Our study also shows that major gaps in knowledge still exist about GHG sources related to agricultural management during sugarcane production, e.g. effects of irrigation, vinasse and filter cake application. Therefore, more studies are needed to assess if bioethanol from sugarcane is a viable option to reduce energy-related GHG emissions.

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Section: Production Systemsmentioning

confidence: 99%

Bioethanol production from sugarcane and emissions of greenhouse gases - known and unknowns

et al. 2011

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“…Rotation with a leguminous crop (Fabaceas) may be more advantageous because of biological fixation of atmospheric nitrogen. Soybean, for instance, may fixate from 100 to 160 kg/ha -1 ofatmospheric N (Mascarenhas et al, 2002). Mascarenhas et al (1994) studied the effect of soybean fertilization on the yield of a sugarcane plantation reform area.…”

Section: Cane Cultivation In An Organic Production Systemmentioning

confidence: 99%

“…Soybean, for instance, may fixate from 100 to 160 kg/ha -1 ofatmospheric N (Mascarenhas et al, 2002). Mascarenhas et al (1994) studied the effect of soybean fertilization on the yield of a sugarcane plantation reform area. These authors found that cane only made use of the residual effect of soybean fertilization when it was higher than 0-126-90 kg.ha -1 of N-P 2 O 5 -K 2 O.…”

Section: Cane Cultivation In An Organic Production Systemmentioning

confidence: 99%