Assessing Tillage Systems for Reducing Ammonia Volatilization from Spring-Applied Slurry Manure

Sadeghpour, Amir; Hashemi, Masoud; Weis, Sarah A.; Spargo, John T.; Mehrvarz, Sajad; Herbert, Stephen J.

doi:10.1080/00103624.2015.1005223

Cited by 15 publications

(9 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surface application is a convenient and common method of manure addition to corn ( Zea mays L.) and hay crops in New York. While surface application of manure is rapid and relatively inexpensive, it can cause odor issues and increase the risk of ammonia volatilization, nutrient runoff, and leaching (Bittman et al, 1999; Maguire et al, 2011; Sistani et al, 2011; Sadeghpour et al, 2015, 2017a). The tillage‐based incorporation of manure can reduce ammonia volatilization and odor issues, but this could also enhance mineralization of soil organic C, be fuel‐intensive, and be incompatible with no‐till or hay production (Maguire et al, 2011).…”

mentioning

confidence: 99%

Nitrous Oxide Emissions from Surface versus Injected Manure in Perennial Hay Crops

Sadeghpour

Ketterings

Vermeylen

et al. 2018

Soil Science Soc of Amer J

View full text Add to dashboard Cite

Low‐producing alfalfa and tall fescue stands can benefit from the addition of manure. Injection of manure (slicing of soil) did not reduce yields of alfalfa or tall fescue. Impact of manure injection on N2O emissions is weather and species dependent. When injection of manure does not increase yield, surface application is more economical. Injecting manure can preserve N, but may mechanically damage the root systems of hay crops such as tall fescue (Festuca arundinacea L.) and alfalfa (Medicago sativa L.). Such damage could result in reduced yield. The objective of this study was to compare the effect of disk‐injected versus surface applied liquid dairy manure on (i) alfalfa and tall fescue dry matter (DM) yield and (ii) nitrous oxide (N2O) emissions. Two manure application methods (injection versus surface application) and two no‐manure controls (injection versus no soil disturbance) were replicated six times in 2014 and 2015 on established hay stands. Manure application increased alfalfa yield from 2.9 to 3.7 and from 4.2 to 5.1 Mg DM ha‐1 in 2014 and 2015, respectively, regardless of application method, suggesting no yield penalty or benefit from injection. Nitrous oxide emissions increased two‐ and six‐fold with manure addition, consistent with higher yields under manure application. Compared with the control treatments, manure addition to tall fescue increased yield by 0.8 and 3.3 Mg ha‐1 in 2014 and 2015, respectively, also with no yield benefit or penalty from injection. Injection of manure did not influence N2O emissions in 2014, but increased emissions by 35% compared with surface application in 2015, and this is consistent with differences in soil moisture that year. Our results indicate injection of liquid manure can be implemented without negatively influencing yield in hay crops, while the impact on N2O emissions can be crop and weather dependent. When injection does not increase yield, the surface application of manure to hay crops is more economical.

show abstract

mentioning

confidence: 99%

Nitrous Oxide Emissions from Surface versus Injected Manure in Perennial Hay Crops

Sadeghpour

Ketterings

Vermeylen

et al. 2018

Soil Science Soc of Amer J

View full text Add to dashboard Cite

show abstract

“…Shifting from N‐based to P‐based manure management for corn can aid in STP and STK management (Maguire et al, 2008), but such a shift will require a reduced application rate of manure and might thus also impact N availability to the corn crop. One method to increase the N value of manure is to apply in the spring and incorporate or inject manure into the soil (Maguire et al, 2011; Ketterings et al, 2013a; Sadeghpour et al, 2015).…”

mentioning

confidence: 99%

Nitrogen‐ vs. Phosphorus‐Based Manure and Compost Management of Corn

et al. 2016

View full text Add to dashboard Cite

Animal manure is typically applied to meet the N needs of crops. This can lead to overapplication of P and K. We evaluated the impact of a change from N‐based applications of manure and compost without incorporation to a P‐based (crop‐removal) management system with immediate incorporation of manure on (i) silage corn (Zea mays L.) yield and quality, and (ii) soil test NO3, P (STP), and K (STK). A 5‐yr field study was conducted with annual spring applications of composted dairy solids (46 and 74 Mg ha−1), liquid dairy manure (68 and 196 kL ha−1), and inorganic N fertilizer (0 and 112 kg ha−1). Shifting from N‐ to P‐based manure and compost management reduced the corn yield by 7 to 13% and protein by 8 to 9%, suggesting that fertilizer N is needed for P‐based management. Shifting from N‐ to P‐based manure management reduced soil NO3–N at silage harvest by 39% vs. 21% for compost. After 5 yr, STP increased four‐ and sixfold and two‐ and fourfold for N‐ and P‐based manure and compost management, respectively, reflecting positive P balances (lower than anticipated yields). Soil test K increased three‐ and twofold with N‐ and P‐based manure and compost management, respectively. Both STP and STK remained unchanged with inorganic N fertilization. We conclude that a shift from N‐ to P‐based compost and manure management, with immediate incorporation of manure, leads to reduced soil P and K buildup and, for manure, also soil NO3, but supplemental inorganic N fertilization is required to ensure that crop N needs are met.

show abstract

“…A shift from surface applications of manure at N-based rates to crop P-removalbased management with immediate (<1 h) incorporation of the manure can reduce P and K buildup in soils (Sadeghpour et al, 2016b(Sadeghpour et al, , 2017. The direct incorporation will increase the N value of manure through abating N volatilization (Dell et al, 2012;Ketterings et al, 2013;Sadeghpour et al, 2015), but a crop yield reduction can occur if N availability at P-based application rates is not sufficient (Sadeghpour et al, 2016a). In these cases, addition of supplemental N fertilizer can increase N availability but additional fertilizer can also impact N 2 O emissions.…”

mentioning

confidence: 99%

Agro‐Environmental Consequences of Shifting from Nitrogen‐ to Phosphorus‐Based Manure Management of Corn

Sadeghpour

Ketterings

Godwin

et al. 2017

Soil Science Soc of Amer J

View full text Add to dashboard Cite

Assessing Tillage Systems for Reducing Ammonia Volatilization from Spring-Applied Slurry Manure

Cited by 15 publications

References 21 publications

Nitrous Oxide Emissions from Surface versus Injected Manure in Perennial Hay Crops

Nitrous Oxide Emissions from Surface versus Injected Manure in Perennial Hay Crops

Nitrogen‐ vs. Phosphorus‐Based Manure and Compost Management of Corn

Agro‐Environmental Consequences of Shifting from Nitrogen‐ to Phosphorus‐Based Manure Management of Corn

Contact Info

Product

Resources

About