N2-fixation and residual N effect of four legume species and four companion grass species

Rasmussen, Jim; Søegaard, Karen; Pirhofer‐Walzl, Karin; Eriksen, Jørgen

doi:10.1016/j.eja.2011.09.003

Cited by 110 publications

(69 citation statements)

References 44 publications

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“…When combining grasses with legume species in grassland systems, N fixation is more efficient with 9% to 18% more N fixed than in legume monocultures (Nyfeler et al, 2011;Schipanski and Drinkwater 2012) leading to higher the forage yields (Rasmussen et al, 2012;Schipanski and Drinkwater 2012). Higher soil N and C storage and cycling efficiency under legume-grass mixture was observed compared to legume monoculture (Paustian et al, 1990;Fustec et al, 2010;Rasmussen et al, 2012;Schipanski and Drinkwater 2012;Bell et al, 2012).…”

Section: Impact Of Grassland Management On Biogeochemical Cyclesmentioning

confidence: 71%

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The impact of grassland management on biogeochemical cycles involving carbon, nitrogen and phosphorus

Rumpel

Creme²,

Ngo

et al. 2015

J. Soil Sci. Plant Nutr.

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Grassland introduction into intensively managed agricultural landscapes may enhance soil organic matter (SOM) content and ecosystem services. However, the magnitude of this effect depends on grassland management practices, and their influence on the soil system. The aim of this paper is to highlight these impacts and their consequences for SOM dynamics and element cycling. We focused in particular on the effect of different grassland management practices in terms of grazing regime, fertilization, and species choice.While carbon, nitrogen and phosphorus cycles are more strongly coupled under grassland as compared to permanent cropping, uncoupling of elemental cycles may occur through management intensification. Grazing regime, fertilization and species choice affect elemental coupling and SOM turnover via organic matter input and rhizosphere activity to different extent, thereby resulting in contrasting SOM storage. Grazing may be more beneficial for SOM contents compared to mowing up to a certain animal density depending on soil type and pedoclimatic context. SOM storage may be increased in some cases through specific fertilizer additions, whereas in others no change was observed. Species choice, e.g. high diversity or introduction of legumes, influence element budgets and soil nutrient availability through plant physiological constraints as well as intraor interspecific interactions. The effect of different plant species mixtures on soil parameters has rarely been elucidated.We conclude that the impact of grassland management practices on SOM of different soil types and the resulting ecosystem services, such as C and nutrient storage need further research in contrasting pedoclimatic contexts. More studies on the controls of belowground biogeochemical cycling of elements are necessary in order to fully understand and manage belowground processes via aboveground plant communities.

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Section: Impact Of Grassland Management On Biogeochemical Cyclesmentioning

confidence: 71%

“…Higher soil N and C storage and cycling efficiency under legume-grass mixture was observed compared to legume monoculture (Paustian et al, 1990;Fustec et al, 2010;Rasmussen et al, 2012;Schipanski and Drinkwater 2012;Bell et al, 2012).…”

Section: Impact Of Grassland Management On Biogeochemical Cyclesmentioning

confidence: 89%

The impact of grassland management on biogeochemical cycles involving carbon, nitrogen and phosphorus

Rumpel

Creme²,

Ngo

et al. 2015

J. Soil Sci. Plant Nutr.

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“…As the straw decomposes, organic matter is increased, and when the organic matter is mineralized, the availability of nutrients in the soil solution increases, making them available to the plants (Sainju et al, 2002;Whitehead & Singh, 2005;Torres et al, 2008;Pacheco et al, 2011). In this context, legumes have the further advantage of incorporating atmospheric N into the system due to biologic fixation by symbiotic bacteria activity in roots (Rasmussen et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen fertilization of vegetables cultivated under no-tillage after cover crops

et al. 2017

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The production of horticultural crops in no-tillage and in rotation with cover crops reduces the dependency in nitrogen fertilizer, due to increased soil organic matter and by biological fixation performed by legumes. Thus, the aim of this work was to study rates of nitrogen fertilization and cover crops in the agronomic performance of tomato and broccoli grown under no-tillage. The experiment was conducted in a split plot design with four replications. Treatments consisted of cover crops, sunn hemp and millet, and four rates of nitrogen fertilization (0, 50, 100 and 200 kg/ha of nitrogen), for both the tomato and broccoli crops. All soil management was performed in no-tillage. For tomato crops we evaluated the plant growth, the nitrate concentration of sprouts and fruits and yield of commercial and non commercial fruits. For broccoli we evaluated plant growth and yield. There was an interaction effect between cover crop and nitrogen rates to tomato growth measured at 100 days after transplanting, for plant height, number of fruit bunches, dry mass of leaves and diameter of the stalk. The tomato commercial fruit number and yield showed maximum values with 137 and 134 kg/ha of N respectively, on the sunn hemp straw. The nitrate concentration of the tomato sprouts was linearly increasing with the increase of nitrogen rates, when grown on the millet straw. For broccoli production, the maximum fresh mass of commercial inflorescence was with 96 kg/ha of N, when grown on the millet straw.

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“…(Rasmussen et al 2012). However, high N input and internal N flows increase the risk of 39 undesirable N losses.…”

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confidence: 99%

Leaching of dissolved organic and inorganic nitrogen from legume-based grasslands

2014

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N2-fixation and residual N effect of four legume species and four companion grass species

Cited by 110 publications

References 44 publications

The impact of grassland management on biogeochemical cycles involving carbon, nitrogen and phosphorus

The impact of grassland management on biogeochemical cycles involving carbon, nitrogen and phosphorus

Nitrogen fertilization of vegetables cultivated under no-tillage after cover crops

Leaching of dissolved organic and inorganic nitrogen from legume-based grasslands

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