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: Meagan E Schipanski Laurie E Drinkwater
Publish Date: 2010/12/10
Volume: 90, Issue: 1, Pages: 105-119
Abstract
The incorporation of legume cover crops into annual grain rotations remains limited despite extensive evidence that they can reduce negative environmental impacts of agroecosystems while maintaining crop yields Diversified grain rotations that include a winter cereal have a unique niche for interseeding cover crops To understand how managementdriven soil fertility differences and interseeding with grains influenced red clover Trifolium pratense N2 fixation we estimated biological N2 fixation BNF in 2006 and 2007 using the 15N natural abundance method across 15 farm fields characterized based on the reliance on BNF derived N inputs as a fraction of total N inputs Plant treatments included winter grain with and without interseeded red clover monoculture clover monoculture orchardgrass Dactylis glomerata and cloverorchardgrass mixtures Fields with a history of legumebased management had larger labile soil nitrogen pools and lower soil P levels Orchardgrass biomass was positively correlated with the managementinduced N fertility gradient but we did not detect any relationship between soil N availability and clover N2 fixation Interseeding clover with a winter cereal did not alter winter grain yield however clover production was lower during the establishment year when interseeded with taller winter grain varieties most likely due to competition for light Interseeding clover increased the N from fixation relative to the monoculture clover 72 vs 63 respectively and the average total N2 fixed at the end of the first growing season 57 vs 47 kg N ha−1 respectively Similar principles could be applied to develop more cash cropcover crop complementary pairings that provide both an annual grain harvest and legume cover crop benefitsWe thank Michael Russelle Johannes Lehmann Ian Merwin Jennifer Gardner and Christina Tonitto for helpful comments on an earlier draft Ann Piombino for field assistance and the farmer collaborators who made this research possible Funding for this work was provided by USDA CSREES NRICGP 20033510112932 to LED and 20053424415740 to R Howarth and the Land Institute
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
- 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
- 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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