Journal Title
Title of Journal: Nutr Cycl Agroecosyst
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Abbravation: Nutrient Cycling in Agroecosystems
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Publisher
Kluwer Academic Publishers
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Authors: J Bayala J Balesdent C Marol F Zapata Z Teklehaimanot S J Ouedraogo
Publish Date: 2006/10/03
Volume: 76, Issue: 2-3, Pages: 193-201
Abstract
The origin of organic matter was studied in the soils of a parkland of karité Vitallaria paradoxa CF Gaertn and néré Parkia biglobosa Jacq Benth which is extensively cultivated without the use of fertilisers In such systems fertility physical chemical and biological gradients around trees have been attributed by some authors to a priori differences in fertility allowing for better tree establishment on richer sites In reverse other workers believed that these gradients are due to the contribution of trees to the formation of soil organic matter through litter and decay of roots Measurements of the variations in the 13C isotopic composition allowed for a distinction between tree C3 derived C and crop and grass C4 derived C in the total soil organic C content The organic carbon contents of the soils were recorded under the two species at two soil depths and at five distances going from tree trunk to the open area and their C isotopic signatures were analysed The results showed that soil carbon contents under karité 643 ± 045 g kg−1 and néré 565 ± 027 g kg−1 were significantly higher p001 than in the open area 409 ± 026 g kg−1 The δ13C of soil C was significantly higher p0001 in the open area −175 ± 03‰ compared with the values obtained on average with depth and distance from tree under karité −202 ± 04‰ and néré −201 ± 04‰ The C4derived soil C was approximately constant and the differences in total soil C were fully explained by the C3 tree contributions to soil carbon of 401 ± 071 302 ± 053 153 ± 010 g kg−1 respectively under karité néré and in the open area These results show that trees in parklands have a directly positive contribution to soil carbon content justifying the need to encourage the maintenance of trees in these systems in semiarid environments where the carbon content of soil appears to be the first limiting factor for crop growth
Keywords:
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Other Papers In This Journal:
- 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
- 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
- Soil N 2 O fluxes in integrated production systems, continuous pasture and Cerrado
- 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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