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Short Communication: Laboratory assessment of ammonia volatilization from pig slurries applied on intact soil cores from till and no-till plots
- Source :
- IRTA Pubpro. Open Digital Archive, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Spanish Journal of Agricultural Research; Vol 18, No 2 (2020); e11SC01, Spanish Journal of Agricultural Research; Vol. 18 No. 2 (2020); e11SC01, Spanish Journal of Agricultural Research; Vol. 18 Núm. 2 (2020); e11SC01, SJAR. Spanish Journal of Agricultural Research, instname, Spanish Journal of Agricultural Research, Vol 18, Iss 2, Pp e11SC01-e11SC01 (2020)
- Publication Year :
- 2020
- Publisher :
- INIA, 2020.
-
Abstract
- Aim of study: Agricultural activities are the main source of volatilized ammonia (NH3). Maximum rates are reached within a few hours after slurry application. This study aimed to evaluate the influence of soil texture, tillage and slurry dry matter (DM) on NH3 volatilization.Area of study: Mediterranean semiarid environments (NE Spain).Material and methods: Ammonia volatilization from pig slurry directly applied on the soil surface was quantified in the laboratory, in soil samples from two experimental sites with different soil textures: silty loam and sandy loam. Field treatments consisted of two tillage management practices: till by disc-harrowing or no-till. At topdressing (cereal tillering), tillage treatments were combined with slurries of different DM contents applied onto the silty loam soil. Measurements were done for two cereal cropping seasons and during the period of maximum NH3 flux (12 h after slurry application). A photoacoustic analyzer was used.Main results: Slurry spreading at sowing resulted in low volatilization (0.7-9% of NH4+-N applied) as it also did at topdressing (0.3-1.4% of NH4+-N applied). At sowing, ammonia volatilization from high DM slurry (>7.5%) was significantly enhanced by no-till in both soils. At topdressing, this result was also found in records on silty loam soil. No differences were found between tillage systems when slurry of low DM content was applied, whatever the soil texture and application moment. Although NH3 volatilization was probably affected by the laboratory conditions, the comparisons between treatments were still valuable.Research highlights: Ammonia volatilization abatement can be improved (
- Subjects :
- no-till
Soil test
Soil texture
Mediterranean agricultural systems
010501 environmental sciences
01 natural sciences
lcsh:Agriculture
No-till farming
calcareous soils
fertilization
NH3
soil texture
winter cereals
0105 earth and related environmental sciences
lcsh:S
04 agricultural and veterinary sciences
Ammonia volatilization from urea
Tillage
Agronomy
Loam
nh3
Soil water
040103 agronomy & agriculture
Slurry
0401 agriculture, forestry, and fisheries
Environmental science
Agriculture
Soil Science
Agronomy and Crop Science
mediterranean agricultural systems
Subjects
Details
- ISSN :
- 21719292
- Database :
- OpenAIRE
- Journal :
- IRTA Pubpro. Open Digital Archive, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Spanish Journal of Agricultural Research; Vol 18, No 2 (2020); e11SC01, Spanish Journal of Agricultural Research; Vol. 18 No. 2 (2020); e11SC01, Spanish Journal of Agricultural Research; Vol. 18 Núm. 2 (2020); e11SC01, SJAR. Spanish Journal of Agricultural Research, instname, Spanish Journal of Agricultural Research, Vol 18, Iss 2, Pp e11SC01-e11SC01 (2020)
- Accession number :
- edsair.doi.dedup.....546b05e9a8e746fea144e28e6248c741