A system N balance for a pasture-based system of dairy production under moist maritime climatic conditions

Burchill, W.E.; Lanigan, Gary; Li, D.; Williams, M.; Humphreys, J.

doi:10.1016/j.agee.2015.12.022

Cited by 28 publications

(10 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ammonia is the main gaseous loss of reactive N in fertilised agricultural grasslands (Burchill et al, 2016;Hoekstra, et al 2020), with magnitude of emissions which can have a significant impact on agronomic performance. Here, even measured at one of the fertilisation events, it also proved to be the major driver of gaseous N loss.…”

Section: The Effect Of N Formulation On Ammonia Emissionsmentioning

confidence: 99%

Nitrogen fertilisers with urease inhibitors reduce nitrous oxide and ammonia losses, while retaining yield in temperate grassland

Król

Forrestal

Wall

et al. 2020

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

Section: The Effect Of N Formulation On Ammonia Emissionsmentioning

confidence: 99%

Nitrogen fertilisers with urease inhibitors reduce nitrous oxide and ammonia losses, while retaining yield in temperate grassland

Król

Forrestal

Wall

et al. 2020

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, these pastoral systems are relatively inefficient in cycling nitrogen (N) through the plant–soil–animal components with only about 15% to 35% of the N entering the system being converted into animal products (e.g. meat and milk products; Burchill, Lanigan, Li, Williams, & Humphreys, ). The large amount of surplus N ingested by grazing ruminants is excreted predominantly in the urine in small localized zones at relatively high N rates (e.g.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of different temperate pasture species to reduce nitrogen leaching from cattle urine applied in different seasons: A soil lysimeter study

Welten

Ledgard

Judge

et al. 2019

Soil Use and Management

View full text Add to dashboard Cite

A soil lysimeter field study assessed the efficacy of different pasture species to reduce nitrogen (N) leaching loss from cow urine deposited in different seasons. A single application of cow urine (15N‐labelled; equivalent to 622 kg N ha−1) was applied in three different seasons (summer, autumn or winter) to three pasture species monocultures (perennial ryegrass, plantain or lucerne) on a free‐draining volcanic soil and monitored over 362 days. Leachate analyses revealed consistently large leaching losses of inorganic‐N from lucerne (>200 kg N ha−1) across different urine application times due to the relatively low plant growth rates during winter (<15 kg DM ha−1 day−1) that led to low total recovery of urine‐N by lucerne plants (<20% of the applied urine‐15N). Conversely, plant uptake of the urine‐N was higher by plantain (ranging from 30% to 45% of that applied) driven by moderately higher winter plant growth rates (30 to 60 kg DM ha−1 day−1). Plantain exhibited large seasonal variation in its efficacy to reduce urine‐N leaching relative to ryegrass (ranging from 15% to 50% reduction for summer or winter urine applications, respectively) with an overall reduction of 39% in the total amount of inorganic‐N leached across the three seasons (53 vs. 87 kg N ha−1 leached relative to ryegrass). This study has demonstrated the potential benefit of using plantain to reduce N leaching losses from urine deposited in the summer to winter grazing period. However, further research is required to quantify the effects of plantain on annual N leaching losses from grazed pastoral systems.

show abstract

“…The maximum nitrogen use efficiency of group 1 was 33% (May and June), while in group 2, it was 32% (October) ( Table 2). In a study by Burchill et al (2016), the nitrogen use efficiency of dairy pasture systems varied from 29 to 37%. Gourley et al (2012) state that the N use efficiency for Australian dairy farms ranges from 15 to 50%, with a median of 28%.…”

Section: Resultsmentioning

confidence: 99%

“…In group 2, the monthly average was 62 kg N ha -1 (Table 2), with a variation from 38 to 82 kg N ha -1 and a total value of 556 kg N ha -1 . Burchill et al (2016) calculated an annual N surplus from 193 to 139 kg ha -1 for a dairy system, while Gourley et al (2012), for Australian dairy farms, presented whole-farm N surpluses from 47 to 601 kg ha -1 , with a median of 193 kg ha -1 . The advantage of calculating the surplus by area per month makes it possible for farmers and researchers to make better decisions regarding the fertilization regime, because it allows to take into account the surplus of the previous month.…”

Section: Resultsmentioning

confidence: 99%

“…According to White (2016) states that, given that dairy producers often operate on tight profit margins and that the long-term viability of their businesses relies on ensuring costs are kept to a minimum, improving energy and protein use efficiency should be a primary objective of dairy producers. A relatively low nitrogen proportion (15-35%) is converted into products in intensive pasture-based livestock production systems, revealing the relatively low overall N use efficiency of these systems (Burchill et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nutrient fluxes and environmental performance indicators for a pasture-based dairy system

Palhares

Novelli

Morelli

2020

Acta Sci. Anim. Sci.

View full text Add to dashboard Cite

The aim of this study was to evaluate the nutrient fluxes for lactating cows in a pasture-based dairy system and the impact of a nutritional management strategy on the environmental performance indicators. Fourteen lactating cows were divided into two experimental groups with seven animals each. The nutritional managements were a diet containing 20% crude protein (Group 1) and a diet with adjusted protein (Group 2). The nutrient budget was calculated on a monthly basis for nitrogen, phosphorus, and potassium. The nutritional strategy of adjusted protein reduces the total surplus in the lactation period for nitrogen by 7.6% and for phosphorus by 6.3%. The total potassium surplus of the adjusted protein group was 8.5% higher. The average nitrogen use efficiency was 21% for group 1 and 22.7% for group 2. Phosphorus use efficiency ranged from 13.4 to 35% for group 1 and from 15.5 to 34% for group 2 and potassium average use efficiency was 14.2% for group 1 and 12.6% for group 2. Nutritional management reduced nitrogen and phosphorus surpluses as well as the values of the environmental performance indicator. Based on this, it is possible to improve the environmental efficiency of dairy systems through improved nutritional management.

show abstract

A system N balance for a pasture-based system of dairy production under moist maritime climatic conditions

Cited by 28 publications

References 47 publications

Nitrogen fertilisers with urease inhibitors reduce nitrous oxide and ammonia losses, while retaining yield in temperate grassland

Nitrogen fertilisers with urease inhibitors reduce nitrous oxide and ammonia losses, while retaining yield in temperate grassland

Efficacy of different temperate pasture species to reduce nitrogen leaching from cattle urine applied in different seasons: A soil lysimeter study

Nutrient fluxes and environmental performance indicators for a pasture-based dairy system

Contact Info

Product

Resources

About