Changes in soil nutrients after 10 years of cattle manure and swine effluent application

Schlegel, Alan J.; Assefa, Yared; Bond, H. D.; Haag, Lucas A.; Stone, L. R.

doi:10.1016/j.still.2017.05.004

Cited by 55 publications

(31 citation statements)

References 34 publications

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“…Mao et al (2008), in chemical modelling of their observed depletion events, attributed 80 % of chemical oxidation of GEM to NO 3 , whilst also considering oxidation by O 3 and OH. The presence of cattle prior to the study may have provided an additional source of NO 3 at the surface (Schlegel et al, 2017), though without measurements of nitrogen species this remains speculative. Further, this source would be available during both dew and non-dew nights and cannot alone explain differences in the composite ambient GEM patterns.…”

Section: Nocturnal Atmospheric Mercury Depletion Eventsmentioning

confidence: 99%

Mercury fluxes over an Australian alpine grassland and observation of nocturnal atmospheric mercury depletion events

Howard

Edwards

2018

Atmos. Chem. Phys.

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Abstract. Aerodynamic gradient measurements of the airsurface exchange of gaseous elemental mercury (GEM) were undertaken over a 40 ha alpine grassland in Australia's Snowy Mountains region across a 3-week period during the late austral summer. Bi-directional GEM fluxes were observed throughout the study, with overall mean value of 0.2 ± 14.5 ng m −2 h −1 and mean nocturnal fluxes of −1.5 ± 7.8 ng m −2 h −1 compared to diurnal fluxes of 1.8 ± 18.6 ng m −2 h −1 . Deposition velocities ranged from −2.2 to 2.9 cm s −1 , whilst ambient GEM concentrations throughout the study were 0.59 ± 0.10 ng m −3 . Cumulative GEM fluxes correlated well with 24 h running mean soil temperatures, and one precipitation event was shown to have a positive impact on diurnal emission fluxes. The underlying vegetation had largely senesced and showed little stomatal control on fluxes. Nocturnal atmospheric mercury depletion events (NAMDEs) were observed concomitant with O 3 depletion and dew formation under shallow, stable nocturnal boundary layers. A mass balance box model was able to reproduce ambient GEM concentration patterns during NAMDE and non-NAMDE nights without invoking chemical oxidation of GEM throughout the column, indicating a significant role of surface processes controlling deposition in these events. Surface deposition was enhanced under NAMDE nights, though uptake to dew likely represents less than one-fifth of this enhanced deposition. Instead, enhancement of the surface GEM gradient as a result of oxidation at the surface in the presence of dew is hypothesised to be responsible for a large portion of GEM depletion during these particular events. GEM emission pulses following nights with significant deposition provide evidence for the prompt recycling of 17 % of deposited mercury, with the remaining portion retained in surface sinks. The long-term impacts of any sinks are however likely to be minimal, as cumulative GEM flux across the study period was close to zero.

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Section: Nocturnal Atmospheric Mercury Depletion Eventsmentioning

confidence: 99%

Mercury fluxes over an Australian alpine grassland and observation of nocturnal atmospheric mercury depletion events

Howard

Edwards

2018

Atmos. Chem. Phys.

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“…In general, returning organic matter to soil plays a key role in waste management and at the same time, as wastes have significant amounts of essential macro-and micronutrients for plants, they represent a nutrient source for crops, with the ultimate goal of nutrient cycle closure (Grigatti et al 2015;Schlegel et al 2017;Yang et al 2016). Application of manure to agricultural fields has several benefits like the improvement of soil chemical, physical, and biological properties (Martinez et al 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Application of manure to agricultural fields has several benefits like the improvement of soil chemical, physical, and biological properties (Martinez et al 2017). However, attention should be drawn to the amounts of nutrients added, because application may exceed crops' needs (Schlegel et al 2017). Environmental impacts like water pollution and eutrophication by NO 3 leaching and P run off, NH 3 emissions, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Environmental impacts like water pollution and eutrophication by NO 3 leaching and P run off, NH 3 emissions, etc. should be taken under consideration (Schlegel et al 2017;Yang et al 2016). Furthermore, another issue that should be taken into account is heavy metals' accumulation to soil and their possible entrance to the food chain through agricultural products (Guan et al 2018;Zhao et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Liquid Cattle Manure Effect on Corn Yield and Nutrients’ Uptake and Soil Fertility, in Comparison to the Common and Recommended Inorganic Fertilization

Samara

Barbayiannis

Lithourgidis

2020

J Soil Sci Plant Nutr

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Liquid dairy cattle (Bos taurus) manure effect on corn (Zea mays L.) yield and nutrients' uptake and soil fertility were studied, in comparison to the crop's common and recommended inorganic fertilization, by means of a 5-year field experiment. The treatments applied each year in the same plots were: (i) manure, (ii) common inorganic fertilization, (iii) recommended inorganic fertilization, and (iv) no fertilization. Each year from each plot, surface soil samples were collected before sowing, corn aboveground biomass was collected at silage, they were analyzed, and grain yield was determined at harvest. Upon all kinds of fertilization, corn silage yield increased in comparison to control and ranged between 51 and 194, 50 and 190, and 39 and 189% for the manure, recommended, and common inorganic fertilization treatment, respectively. Similarly, grain yield and the macro-and micronutrients' plant uptake were increased. Soil fertility improved regarding the NO 3-N, which upon organic or inorganic fertilization increased 10-46% in comparison to the control. Manure application significantly increased K by 32-81%. However, in the case of P, an excessive increase was observed, which was two to three times higher than the inorganic fertilization (30-44 mg kg −1). Consequently, repeated annual applications of liquid cattle manure to soil can enhance crop yield, nutrients' uptake, and soil fertility, at levels higher or similar to the common or recommended inorganic fertilization for the crop. However, the possibility of P build up should also be considered.

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“…A remoção da toxicidade observada foi causada pela degradação bioquímica de compostos tóxicos catalisada pelos microrganismos presentes nos reatores (SCULLY;COLLINS;O'FLAHERTY, 2006;SANCINETTI et al, 2012;AMORIM;SADER;SILVA, 2015).…”

Section: Remoção Da Toxicidadeunclassified

Tratamento anaeróbio de efluentes em reatores de alta taxa

Garay¹

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Aos meus pais, meus pilares, Felipe e Beatriz, que sempre apoiaram as minhas decisões e confiaram em mim, agradeço tudo. Aos meus irmãos, meus ídolos, Daniel e Erika, que são a força para continuar. Ao prof. Flávio e à profa. Teresa, agradeço a oportunidade e a confiança para desenvolver o mestrado. Ao meu parceiro de laboratório, Felipe, que sempre esteve disposto para ajudar. Aos técnicos da ETE, Brandão e Manoel, que sempre torceram para que os experimentos tenham resultados positivos. Ao time do laboratório e grupo de pesquisa pelo apoio nas atividades de laboratório e por harmonizar o ambiente de trabalho. Aos meus amigos que fizeram de Lorena um lar e com os quais tenho lembranças memoráveis.

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Changes in soil nutrients after 10 years of cattle manure and swine effluent application

Cited by 55 publications

References 34 publications

Mercury fluxes over an Australian alpine grassland and observation of nocturnal atmospheric mercury depletion events

Mercury fluxes over an Australian alpine grassland and observation of nocturnal atmospheric mercury depletion events

Liquid Cattle Manure Effect on Corn Yield and Nutrients’ Uptake and Soil Fertility, in Comparison to the Common and Recommended Inorganic Fertilization

Tratamento anaeróbio de efluentes em reatores de alta taxa

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