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: Katelyn A Congreves R Paul Voroney Laura L Van Eerd
Publish Date: 2014/09/25
Volume: 100, Issue: 3, Pages: 257-271
Abstract
After cole crop harvest over 400 kg N ha−1 may remain in the field as crop residues and soil mineral N Thus methods to reduce potential postharvest N losses are needed Urea with 5 15N excess was incorporated in miniplots to produce 15N enriched broccoli Brassica olecerea var italica L The fate of aboveground crop residuederived N 15Nresidueabove and belowground residual fertilizer or root biomass N 15Nresiduebelow were studied from broccoli harvest Aug and Sept 2011 to spring wheat Triticum durum L harvest July 2012 with and without an amendment of used cooking oil The 15Nresiduebelow remained mostly as organic N was not influenced by the amendment and was resistant to postharvest losses With the oil amendment soil mineral 15Nresidueabove was reduced by 19 kg ha−1 and microbial biomass 15Nresidueabove was increased by 21 kg ha−1 2 weeks after broccoli harvest indicating immobilization of 15Nresidueabove and reduced potential N losses At spring wheat harvest amended soil had greater total organic and mineral 15Nresidueabove compared to the unamended control by 44 43 and 075 kg ha−1 respectively The amendment increased the recovery of 15Nresidueabove in the soil total N pool by 209 at spring wheat harvest and it did not affect spring wheat yields or plant 15Nresidueabove content It is possible that the amendment facilitated the incorporation of 15Nresidueabove into organic compounds which were less susceptible to losses Growers should consider applying used cooking oil at harvest to minimize potential N losses and to increase the soil organic N fractionThe authors acknowledge funding from Natural Sciences and Engineering Research Council of Canada Agriculture and AgriFood Canada and Ontario Ministry of Agriculture Food and Rural Affairs as well as research contributions of Dr Ivan O’Halloran Dr Bill Deen Myles Stocki Mike Zink summer students and Jonathan Gorham
Keywords:
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Other Papers In This Journal:
- 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
- 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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