Effect of ploughing and reseeding of permanent grassland on soil N, N leaching and nitrous oxide emissions from a clay-loam soil

Necpálová, Magdaléna; Casey, I. A.; Humphreys, J.

doi:10.1007/s10705-013-9564-y

Cited by 31 publications

(28 citation statements)

References 34 publications

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“…Velthof et al (2010) concluded that grassland renovation in autumn increased risk of N leaching while renovation in spring mitigated this risk due to quick establishment of plant cover and plant uptake of mineralised N (Necpalova et al, 2013). Grassland renovation in…”

Section: Overall Nitrous Oxide and Leaching Lossesmentioning

confidence: 99%

“…Managed grasslands require routine renovation every five to ten years due to sward deterioration with age (Necpalova et al, 2013). In Ireland however, grasslands are reseeded on average every 30 years (Humphreys & Casey, 2002) with a substantial associated risk of losing large amounts of accumulated soil organic matter (SOM) (Velthof et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…While ploughing can cause significant N losses, the extent of these effects remains unclear (Kong et al, 2009). Even if grassland is immediately reseeded, there is negligible plant N uptake for a several weeks following ploughing, and mineralized N is vulnerable to loss via N2O or leaching during this period (Necpalova et al, 2013). For the same reason nitrogen fertiliser applied shortly after ploughing is also susceptible to loss.…”

Section: Introductionmentioning

confidence: 99%

“…Studies of Velthof et al (2010) and Necpalova et al (2013) focused on various aspects of this issue with Velthof et al (2010) particularly focussing on the impact of timing of ploughing and variable fertilisation rates, while Necpalova et al (2013) assessed full system N loss.…”

Section: Introductionmentioning

confidence: 99%

“…However, both studies exhibited experimental weaknesses such as using soil samples as indicator of leaching instead of direct measurements (Velthof et al, 2010) or using only one soil type and delaying the start of measurements until a few months after reseeding (Necpalova et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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The effect of renovation of long-term temperate grassland on N2O emissions and N leaching from contrasting soils

Król

Jones

Williams

et al. 2016

Science of The Total Environment

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Renovation of long-term grassland is associated with a peak in soil organic N mineralisation which, coupled with diminished plant N uptake can lead to large gaseous and leaching N losses. This study reports on the effect of ploughing and subsequent N fertilisation on the N2O emissions and DON/ NO3 -leaching, and evaluates the impact of ploughing technique on the magnitude and profile of N losses. This study was carried out on isolated grassland lysimeters of three Irish soils representing contrasting drainage properties (well-drained Clonakilty, moderately-drained Elton and poorly-drained Rathangan). Lysimeters were manually ploughed simulating conventional (CT) and minimum tillage (MT) as two treatments. Renovation of grassland increased N2O flux to a maximum of 0.9 kg N2O-N ha -1 from poorly-drained soil over four days after treatment. Although there was no difference between CT and MT in the post-ploughing period, the treatment influenced subsequent N2O after fertiliser applications. Fertilisation remained the major driver of N losses therefore reducing fertilisation rate post planting to account for N mineralised through grassland renovation could reduce the losses in medium to longer term. Leaching was a significant loss pathway, with the cumulative drainage volume and N leached highly influenced by soil type.Overall, the total N losses (N2O + N leached) were lowest from poorly and moderately draining soil and highest for the well draining soil, reflecting the dominance of leaching on total N losses and the paramount importance of soil properties.

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Section: Overall Nitrous Oxide and Leaching Lossesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The effect of renovation of long-term temperate grassland on N2O emissions and N leaching from contrasting soils

Król

Jones

Williams

et al. 2016

Science of The Total Environment

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Grassland renovation has important consequences for C and N cycling and losses

Kayser

Müller

Isselstein

2018

Food and Energy Security

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Sward degradation is a serious threat to the functioning of agricultural grassland and the provision of ecosystem services. Renovation measures are frequently applied to restore degraded swards. The success is highly variable, and substantial trade-offs can be related to the process of renovation. This paper starts with a general classification of renovation measures and then investigates the processes that are directly related to renovation and lead to a change in botanical composition and affect soil functions and C and N fluxes. These processes are strongly interrelated and dependent on site, climate, and management condition as well as on the timescale. The more an existing and degraded sward is deliberately disturbed prior to a renovation measure, for example, by ploughing, the stronger will be the change in sward composition, and the stronger will be the potential yield and quality advantage. However, the risk of a release of soil organic C and N emissions to the environment will also increase. These emissions will usually decrease in time, but so will the positive effects on sward composition. This demonstrates that the renovation of swards is normally the second best solution and a proper and well-adapted grassland utilization and management should be adopted to avoid degradation in the first place. K E Y W O R D Scarbon, nitrogen, reseeding, sward improvement, vegetation

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Introduction of woody and herbaceous legumes influences productivity, diversity and soil properties in a degraded grassland

Millner

Hou

2020

Land Degrad Dev

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Medicago sativa (herbaceous plant) and Caragana korshinskii (woody plant) are the most important legume species planted in semiarid grassland on the Loess Plateau, China. However, the effects of introducing these legumes on the productivity, diversity and soil fertility of native grassland are not well understood. The effects of planting M. sativa and C. korshinskii on the productivity, diversity and soil properties of native grassland on the Loess Plateau were assessed over a 10-year period. A 20-ha area of grassland was selected for planting in 2009 and subdivided into 18 1-ha plots with three treatments: 1) a non-planted control (GN); 2) M. sativa (GM) and 3) C. korshinskii (GC) both planted individually, with six replicates. Ten subplots were established in each plot from which plant and soil samples were collected in August 2019. Compared with GN, GM and GC increased vegetative cover by 12.1 and 9.0%, respectively. Soil organic carbon (OC), total nitrogen (TN), ammonium nitrogen (NH 4 + -N), nitrate-nitrogen (NO 3 − -N) and total phosphorus (TP) were also higher (p <.05) in the GM and GC treatments. Compared with GN, GM had no effect on native grassland productivity but did reduce species richness and evenness. In contrast, GC increased grassland productivity and maintained species richness and evenness. This suggests that C. korshinskii is the preferred legume species for grassland restoration on the Loess Plateau.

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Effect of ploughing and reseeding of permanent grassland on soil N, N leaching and nitrous oxide emissions from a clay-loam soil

Cited by 31 publications

References 34 publications

The effect of renovation of long-term temperate grassland on N2O emissions and N leaching from contrasting soils

The effect of renovation of long-term temperate grassland on N2O emissions and N leaching from contrasting soils

Grassland renovation has important consequences for C and N cycling and losses

Introduction of woody and herbaceous legumes influences productivity, diversity and soil properties in a degraded grassland

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