Field-Scale Evaluation of Calcium Ammonium Nitrate, Urea, and Urea Treated with N-(N-Butyl) Thiophosphoric Triamide Applied to Grassland in Ireland

Antille, Diogenes L.; Hoekstra, Nyncke J.; Lalor, S. T. J.

doi:10.1080/00103624.2015.1033540

Cited by 10 publications

(6 citation statements)

References 39 publications

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“…Table 3 shows dry matter yield-to-nitrogen responses observed after a single application of paunch or mineral fertilizer, and over four consecutive cuts. Responses were essentially linear for the range of N application rates investigated (P-values <0.05), which agrees with earlier studies dealing with synthetic N sources (e.g., Reid, 1985;Antille et al, 2015b), and organic materials used in ryegrass (e.g., Antille et al, 2014a). Despite this, nonlinear responses were also fitted to the data, but estimate of parameters for the square term were not significant (p-values >0.05), which was observed for all amendments used in this study.…”

Section: Glasshouse Studysupporting

confidence: 90%

“…Dry matter yield (DMY) was determined by hand-cutting the grass to a height of 40 mm, at regular intervals of 25 days after emergence, which was recorded at day 8 after seeding. The time interval for cutting of the grass was consistent with recommendations reported in earlier studies for maximum yield (e.g., Fulkerson et al, 1993;Antille et al, 2015b). At the time this report was produced, a total of four cuts were completed, however the experiment will continue to include a total of six cuts.…”

Section: Glasshouse Studymentioning

confidence: 66%

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An Investigation into the Fertilizer Potential of Slaughterhouse Cattle Paunch

Antille¹,

McCabe²,

Spek³

et al. 2018

Transactions of the ASABE

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Abstract. In Australia, recycling of paunch waste to farmland has been suggested as a cost-effective and practicable environmental option, but little is known about its agronomic value. Experimental work was undertaken to assess potential risks due to weed seed contamination, determine the agronomic response of ryegrass ( L.) to soil incorporation of paunch, and investigate short-term greenhouse gas (GHG) emissions. Five types of paunch with compost ages between 2 and 16 weeks were compared with urea (46% N) and applied at field equivalent rates of 0 (control), 150, and 300 kg ha-1 N. The risk of weed contamination from paunch applied to soil appeared to be negligible; however, techniques that enable seed viability to be determined may be required to fully discard such risk. Average dry matter yield with paunch was ~30% higher than untreated grass, but ~35% lower than with urea. Dry matter yield in paunch-treated grass was between 2500 and 3250 kg ha-1 over five cuts conducted at 25-day intervals. Paunch N responses were between 1.12 and 3.25 kg DM kg-1 N depending on compost age, but lower than with urea N (~6.5 kg DM kg-1 N). Nitrogen use efficiency of paunch ranged between 3% and 20%, compared to about 35% with urea. Nitrogen fertilizer replacement value (NFRV) of paunch was highest in the 6-week-old compost (~60%) and ranged between 20% and 55% across all other organic materials. Short-term N2O emissions were similar (p > 0.05) with both mineral and organic amendments; however, CH4 emissions were higher (p < 0.05) from paunch compared with urea-treated soil. Overall, there appears to be potential for paunch-derived products to be used as a source of C and nutrients in crop production. Industry quality specifications for compost are available, but they need to be expanded to incorporate guidelines relevant to paunch. There is a requirement for the value proposition to industry to be determined, including reduced cost of paunch disposal via gate fees. Keywords: Byproducts, Composting, Fertilizer replacement value, Nutrient recovery, Nutrient use efficiency, Recycling of abattoir-derived waste.

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Section: Glasshouse Studysupporting

confidence: 90%

Section: Glasshouse Studymentioning

confidence: 66%

An Investigation into the Fertilizer Potential of Slaughterhouse Cattle Paunch

Antille¹,

McCabe²,

Spek³

et al. 2018

Transactions of the ASABE

Self Cite

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“…Antille et al . () also reported that CAN was more effective than urea in summer. Nevertheless, the differences in the present study were minor and generally not statistically significant.…”

Section: Discussionmentioning

confidence: 87%

“…This result contrasts with Antille et al . () who reported that urea was less effective than CAN in spring. In ‘summer’ the URY exceeded 100 in only 39% of cases in (mean 98.4%) suggesting a trend for urea to perform a little better than CAN in spring and a little poorer in summer.…”

Section: Discussionmentioning

confidence: 99%

Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland?

Forrestal

Harty

Carolan

et al. 2017

Soil Use and Management

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In temperate grassland, urea has been shown to have lower nitrous oxide emissions compared to ammonium nitrate-based fertilizer and is less expensive. However, nitrogen (N) loss via ammonia volatilization from urea raises questions regarding yield performance and efficiency. This study compares the yield and N offtake of grass fertilized with urea, calcium ammonium nitrate (CAN) and urea treated with the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) at six site-years. Five annual fertilizer N rates (100-500 kg N/ha) were applied in five equal splits of 20-100 kg N/ha during the growing season. On average, urea produced slightly better yields than CAN in spring (103.5% of CAN yield) and slightly poorer yields in summer (98.4% of CAN yield). There was no significant difference in annual grass yield between urea, CAN and urea + NBPT. Urea had the lowest cost per tonne of DM grass yield produced. However, the urea treatment had lower N offtake than CAN and this difference was more pronounced as the N rate increased. There was no difference in N offtake between urea + NBPT and CAN. While this study shows that urea produced yields comparable to CAN, urea apparent fertilizer N recovery (AFNR) tends to be lower. Urea selection in place of CAN will increase national ammonia emissions which is problematic for countries with targets to reduce ammonia emissions. Promisingly, NBPT allows the agronomic performance of urea to consistently equal CAN across N rates by addressing the ammonia loss limitations of urea.

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“…Nitrogen deficits caused by reduced uptake of nutrients have an impact on potential crop yield and reduce water use efficiency (Sadras and Rodriguez, 2010). Therefore, soil conditions conducive to high rates of nutrient uptake by the crop following fertilizer application will enhance agronomic performance and reduce opportunities for environmental losses (Antille et al, 2015a). The "4Rs" principle of nutrient management, that is, optimized crop nutrition with the right product, right place, right rate, and right time, has been suggested as a key strategy to increase use efficiency and mitigate impacts on climate change associated with fertilizer use (Roberts, 2007;Norton, 2014).…”

Section: Effect Of Nitrogen Fertilization and Impact On Fertilizer Usmentioning

confidence: 99%

The Potential of Controlled Traffic Farming to Mitigate Greenhouse Gas Emissions and Enhance Carbon Sequestration in Arable Land: A Critical Review

2015

Trans. ASABE

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The drive toward adoption of conservation agriculture to reduce costs and increase production sustainably causes concern due to the potentially negative effects of increased soil compaction. Soil compaction reduces aeration, water infiltration, and saturated hydraulic conductivity and increases the risk of waterlogging. Controlled traffic farming (CTF) is a system in which: (1) all machinery has the same or modular working and track width so that field traffic can be confined to the least possible area of permanent traffic lanes, (2) all machinery is capable of precise guidance along those permanent traffic lanes, and (3) the layout of the permanent traffic lanes is designed to optimize surface drainage and logistics. Without CTF, varying equipment operating and track widths translate into random traffic patterns, which can cover up to 85% of the cultivated field area each time a crop is produced. Nitrous oxide (N 2 O) is the greatest contributor to agriculture's greenhouse gas (GHG) emissions from cropping, and research suggests that its production increases significantly under conditions of high (>60%) water-filled porosity when nitrate (mainly from fertilizer N) and carbon (usually from crop residues) are available. Self-amelioration of soils affected by compaction occurs slowly from the surface downward; however, the rate of amelioration decreases with increase in depth. Consequently, all soils in non-CTF systems in mechanized agriculture are prone to some degree of compaction, which compromises water infiltration, increases the frequency and duration of waterlogged conditions, reduces gaseous exchange between soil and the atmosphere, inhibits root penetration and exploitation of nutrients and water in the subsoil, and enhances N 2 O emissions. Adoption of CTF increases soil porosity in the range of 5% to 70%, water infiltration by a factor of 4, and saturated hydraulic conductivity by a factor of 2. The greater cropping opportunity and enhanced crop growth for given fertilizer and rainfall inputs offered by CTF, coupled with no-tillage, provide potential for enhanced soil carbon sequestration. Reduced need and intensity of tillage, where compaction is avoided, also helps protect soil organic matter in stable aggregates, which may otherwise be exposed and oxidized. There is both circumstantial and direct evidence to suggest that improved soil structural conditions and aeration offered by CTF can reduce N 2 O emissions by 20% to 50% compared with non-CTF. It is not compaction per se that increases the risk of N 2 O emissions but rather the increased risk of waterlogging and increase in water-filled pore space. There may be an elevated risk of GHG emissions from the relatively small area of permanent traffic lanes (typically <20% of total cultivated area) if these are not managed appropriately. Quantification of the benefits of compaction avoidance in terms of GHG emissions may be possible through the use of well-developed models. Keywords. Carbon dioxide (CO 2), Carbon sequestration, Fertilizer use efficiency,...

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Field-Scale Evaluation of Calcium Ammonium Nitrate, Urea, and Urea Treated with N-(N-Butyl) Thiophosphoric Triamide Applied to Grassland in Ireland

Cited by 10 publications

References 39 publications

An Investigation into the Fertilizer Potential of Slaughterhouse Cattle Paunch

An Investigation into the Fertilizer Potential of Slaughterhouse Cattle Paunch

Can the agronomic performance of urea equal calcium ammonium nitrate across nitrogen rates in temperate grassland?

The Potential of Controlled Traffic Farming to Mitigate Greenhouse Gas Emissions and Enhance Carbon Sequestration in Arable Land: A Critical Review

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