Urine patch and fertiliser N interaction: Effects of fertiliser rate and season of urine application on nitrate leaching and pasture N uptake

Buckthought, Laura E.; Clough, Tim J.; Cameron, K. C.; Di, H. J.; Shepherd, Mark

doi:10.1016/j.agee.2015.01.019

Cited by 25 publications

(8 citation statements)

References 32 publications

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“…A lysimeter experiment was performed to measure pastoral N 2 O emissions under different urea fertiliser rates and urine treatments as previously reported (Buckthought et al 2015). In brief, 36 undisturbed soil monolith lysimeters, 50 cm diameter, 70 cm deep, were collected from the AgResearch No.…”

Section: Methodsmentioning

confidence: 99%

Fertiliser and seasonal urine effects on N₂O emissions from the urine-fertiliser interface of a grazed pasture

Buckthought

Clough

Cameron

et al. 2015

New Zealand Journal of Agricultural Research

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Significant areas of ruminant-grazed pastures are simultaneously covered by excreted urine and fertiliser nitrogen (N). However, the effect of overlapping N inputs on nitrous oxide (N 2 O) emission factors has not been studied. Three rates of 15 N-labelled urea fertiliser were applied with either no urine, an autumn-urine or a spring-urine application. These treatments were applied to perennial ryegrass pasture (Lolium perenne L.) and N 2 O fluxes were determined over 373 days using standard static closed chamber techniques. Cumulative N 2 ON fluxes ranged from 766 to 4332 g N 2 ON ha-1 (0.36%-0.74% of total N applied) and were lowest in the absence of urine; however, no fertiliser rate effect occurred regardless of urine presence or season of application. Urine-elevated N 2 ON fluxes followed urine applications for up to 40 days, resulting in lower fertiliser contributions to the N 2 ON fluxes at these times. Total 15 N recoveries as N 2 ON were ≤0.04% and did not differ with fertiliser rate.

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Section: Methodsmentioning

confidence: 99%

Fertiliser and seasonal urine effects on N₂O emissions from the urine-fertiliser interface of a grazed pasture

Buckthought

Clough

Cameron

et al. 2015

New Zealand Journal of Agricultural Research

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“…It may be the case, that with slurry application, the N 2 -fixation feedback mechanism worked less efficient as the clover content was lower to begin with (Eriksen et al, 2014) and urine on top of a basic fertilizer-N application may have caused soil nitrate to build up even though the application rate of fertilizer was low. However in lysimeters, Buckthought et al (2015) found that avoiding fertilizer application over urine patches reduced leaching of fertilizer-N by less than 2%. Also, increased fertilization caused increased growth which in turn may have led to more excretion.…”

Section: Effects Of Managementmentioning

confidence: 97%

Nitrate leaching and residual effect in dairy crop rotations with grass–clover leys as influenced by sward age, grazing, cutting and fertilizer regimes

Eriksen

Askegaard

Rasmussen

et al. 2015

Agriculture, Ecosystems & Environment

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“…Intensive livestock farming practices, such as dairying, reduce water quality through leaching of nitrate into ground water (Cameron, Di, & Moir, 2013). Livestock urine is a key source of nitrate loss; it undergoes rapid urea hydrolysis before nitrification converts the N into a form which is readily leached from the soil (Buckthought, Clough, Cameron, Di, & Shepherd, 2015;Li, Betteridge, Cichota, Hoogendoorn, & Jolly, 2012). Consequently, many of the strategies to mitigate the impact of farming on the environment are centred on reducing soil N loading from animal urine.…”

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confidence: 99%

Milk yield and nitrogen excretion of dairy cows grazing binary and multispecies pastures

Bryant

Miller

Greenwood

et al. 2017

Grass and Forage Science

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Three grazing experiments were carried out in late spring (early lactation), summer (mid‐lactation) and autumn (late lactation) to compare the effects of perennial ryegrass cultivar or grass species, sown in binary or multispecies mixtures, on milk yield and nitrogen excretion of dairy cows. Replicated groups of multiparous Holstein Friesian × Jersey cows were offered either a control or high‐sugar perennial ryegrass (Lolium perenne) or tall fescue (Festuca arundinacea) base grass in a binary mixture with white clover (Trifolium repens) or in a multispecies mixture with additional legumes, bromegrass (Bromus willdenowii) and forbs. During each 9‐day experiment, botanical composition, milk production and faecal and urine composition were measured. Milk solid (MS) yield for the control ryegrass, high‐sugar ryegrass and tall fescue grass types averaged, respectively, 1.53, 1.64 and 1.70 kg MS cow−1 day−1 for a binary mixture sward, compared with 1.65, 1.54 and 1.53 kg MS cow−1 day−1 for a multispecies sward. Legume content influenced milk production more than the number of species present in a mixture. There was lower urine N concentration from a multispecies sward compared with a binary mixture. Urine N concentration of cows grazing the control ryegrass, high‐sugar ryegrass and tall fescue grass types averaged, respectively, 4.6, 5.3 and 6.8 g N L−1 for a binary mixture, compared with 4.1, 3.9 and 3.9 g N L−1 for a multispecies mixture. Feeding dairy cows on multispecies swards containing forbs presents an opportunity to reduce N losses without compromising milk yield.

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Urine patch and fertiliser N interaction: Effects of fertiliser rate and season of urine application on nitrate leaching and pasture N uptake

Cited by 25 publications

References 32 publications

Fertiliser and seasonal urine effects on N₂O emissions from the urine-fertiliser interface of a grazed pasture

Fertiliser and seasonal urine effects on N₂O emissions from the urine-fertiliser interface of a grazed pasture

Nitrate leaching and residual effect in dairy crop rotations with grass–clover leys as influenced by sward age, grazing, cutting and fertilizer regimes

Milk yield and nitrogen excretion of dairy cows grazing binary and multispecies pastures

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Urine patch and fertiliser N interaction: Effects of fertiliser rate and season of urine application on nitrate leaching and pasture N uptake

Cited by 25 publications

References 32 publications

Fertiliser and seasonal urine effects on N2O emissions from the urine-fertiliser interface of a grazed pasture

Fertiliser and seasonal urine effects on N2O emissions from the urine-fertiliser interface of a grazed pasture

Nitrate leaching and residual effect in dairy crop rotations with grass–clover leys as influenced by sward age, grazing, cutting and fertilizer regimes

Milk yield and nitrogen excretion of dairy cows grazing binary and multispecies pastures

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Fertiliser and seasonal urine effects on N₂O emissions from the urine-fertiliser interface of a grazed pasture

Fertiliser and seasonal urine effects on N₂O emissions from the urine-fertiliser interface of a grazed pasture