Journal Title
Title of Journal: Nutr Cycl Agroecosyst
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Abbravation: Nutrient Cycling in Agroecosystems
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Publisher
Springer Netherlands
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Authors: Arminda Moreira de Carvalho Willian Roberson Duarte de Oliveira Maria Lucrécia Gerosa Ramos Thais Rodrigues Coser Alexsandra Duarte de Oliveira Karina Pulrolnik Kleberson Worslley Souza Lourival Vilela Robélio Leandro Marchão
Publish Date: 2017/01/13
Volume: 108, Issue: 1, Pages: 69-83
Abstract
The objective of this study was to evaluate N2O fluxes from integrated croplivestock ICL and integrated croplivestock forest ICLF systems continuous pasture and native Cerrado The experiment was conducted at Embrapa Cerrados PlanaltinaDF in a Red Oxisol between February 2012 and April 2014 following the transition of crop to livestock which began in March 2012 with the sowing of Brachiaria brizantha cv Piatã intercropped with sorghum The experimental design was a randomized block with three replications The treatments were cultivated area intercropped with rows of Eucalyptus spaced 2 × 2 m between plants and 22 m between rows ICLF and an area cultivated without tree species ICL and also two adjacent reference areas native Cerrado and continuous pasture N2O productions were characterized by fluxes below 20 μg N m−2 h−1 The ICL system had the highest cumulative flux with 284 kg N ha−1 while the ICLF system obtained cumulative fluxes of 205 kg N ha−1 The native Cerrado showed a negative balance with –005 kg N ha−1 The dry season was mostly characterized by low N2O fluxes ranging between 10 μg N m−2 h−1 and negative values whereas higher N2O fluxes were observed after precipitation events especially those following a long drought period The water filled pore space was the factor that best explained N2O fluxes but higher fluxes were observed after the application of nitrogen fertilizer There was a positive correlation between microbial biomass carbon and N2O fluxes in the ICL and ICLF systemsTo Conselho Nacional de Desenvolvimento Científico e Tecnológico CNPq for the scientific productitvity fellowships granted to the first and the third author Also to Coordenação de Aperfeiçoamento de Pessoal de Nível Superior for the PostDoctorate fellowship granted to the fourth author Project funding was provided by Empresa Brasileira de Pesquisa Agropecuária Coordenação de Aperfeiçoamento de Pessoal de Nível Superior and Conselho Nacional de Desenvolvimento Científico e Tecnológico
Keywords:
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- Amending soil with used cooking oil to reduce nitrogen losses after cole crop harvest: a 15 N study
- Effects of fertiliser type and the presence or absence of plants on nitrous oxide emissions from irrigated soils
- Relative contribution of trees and crops to soil carbon content in a parkland system in Burkina Faso using variations in natural 13 C abundance
- Shrubs affect soil nutrients availability with contrasting consequences for pasture understory and tree overstory production and nutrient status in Mediterranean grazed open woodlands
- Forecasting long-term global fertilizer demand
- 15 N tracer technique analysis of the absorption and utilisation of nitrogen fertiliser by potatoes
- Nitrogen, phosphorus, and potassium budgets in Indian agriculture
- Effects of different manuring systems with and without biogas digestion on nitrogen cycle and crop yield in mixed organic dairy farming systems
- Crop response of aerobic rice and winter wheat to nitrogen, phosphorus and potassium in a double cropping system
- Net N immobilisation during the biodegradation of mucilage in soil as affected by repeated mineral and organic fertilisation
- Phosphorus and potassium cycling in a long-term no-till integrated soybean-beef cattle production system under different grazing intensities insubtropics
- Contribution of relay intercropping with legume cover crops on nitrogen dynamics in organic grain systems
- Method and timing of grassland renovation affects herbage yield, nitrate leaching, and nitrous oxide emission in intensively managed grasslands
- Mineralizable soil nitrogen and labile soil organic matter in diverse long-term cropping systems
- Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system
- Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe
- Gross nitrogen mineralization in pulse-crop rotations on the Northern Great Plains
- Management strategies for reducing soil degradation through modeling in a GIS environment in northern Ethiopia catchment
- Millet nutrient use efficiency as affected by natural soil fertility, mineral fertilizer use and rainfall in the West African Sahel
- Nitrogen fertilization and critical nitrogen concentration for contemporary high yielding cotton under no-tillage
- Effects of catch crops on silage maize ( Zea mays L.): yield, nitrogen uptake efficiency and losses
- Nitrogen input, 15 N balance and mineral N dynamics in a rice–wheat rotation in southwest China
- Nutrient cycling in an agroforestry alley cropping system receiving poultry litter or nitrogen fertilizer
- How much nitrogen is fixed by biological symbiosis in tropical dry forests? 2. Herbs
- Nitrogen fertilizer placement and timing affects bread wheat ( Triticum aestivum) quality and yield in an irrigated bed planting system
- Nitrogen fixation of red clover interseeded with winter cereals across a management-induced fertility gradient
- Response of bulk chemical composition, lignin and carbohydrate signature to grassland conversion in a ley-arable cropping system
- Nitrogen recovery and downslope translocation in maize hillside cropping as affected by soil conservation
- Effect of seasonal rainfall, N fertilizer and tillage on N utilization by dryland wheat in a semi-arid environment
- Long-term effects of fertilization and manuring on groundnut yield and nutrient balance of Alfisols under rainfed farming in India
- Response of intensively grazed ryegrass dairy pastures to fertiliser phosphorus and potassium
- Effect of seasonal rainfall, N fertilizer and tillage on N utilization by dryland wheat in a semi-arid environment
- Above- and belowground litter stocks and decay at a multi-species afforestation site on arid, saline soil
- Productivity of yam-based systems with herbaceous legumes and short fallows in the Guinea-Sudan transition zone of Benin
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