Hauptseite > Publikationsdatenbank > Soil mineral N retention and N2O emissions following combined application of 15N-labelled fertiliser and weed residues > print

001     111946
005     20200702121631.0
024 7 _ |2 pmid
|a pmid:22976203
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|a 10.1002/rcm.6254
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|a WOS:000308880500002
037 _ _ |a PreJuSER-111946
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Biochemical Research Methods
084 _ _ |2 WoS
|a Chemistry, Analytical
084 _ _ |2 WoS
|a Spectroscopy
100 1 _ |0 P:(DE-HGF)0
|a Garcia-Ruiz, R.
|b 0
245 _ _ |a Soil mineral N retention and N2O emissions following combined application of 15N-labelled fertiliser and weed residues
260 _ _ |a New York, NY
|b Wiley Interscience
|c 2012
300 _ _ |a 2379 - 2385
336 7 _ |a Journal Article
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336 7 _ |a article
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440 _ 0 |0 16701
|a Rapid Communications in Mass Spectrometry
|v 26
|x 0951-4198
|y 20
500 _ _ |3 POF3_Assignment on 2016-02-29
500 _ _ |a This research was carried out in the framework of the 'Olive grove project' of the General Secretary for Rural Development and organic production of the Junta de Andalucia, and with the economic help of the Minister of Science and Technology of Spain through the project referenced CGL200908303.
520 _ _ |a The combination of plant residues with inorganic fertiliser-N provides the potential to increase N-use efficiency in agricultural fruit production systems, such as olive orchards. The development of weeds in the inter-canopy area of olive orchards is encouraged as a novel strategy to reduce soil erosion. However, little is known about soil N retention or N(2) O production following the combined application of inorganic-N with the mulched weed residues.Emissions of (15) N-N(2) O and soil mineral (15) N retention were measured following combined applications of (15) N-labelled fertiliser and a range of olive crop weed residues to a silty loam soil under controlled conditions. These plant residues differed in their C:N ratios, lignin and polyphenol contents.The magnitude of soil (15) N-NO(3) (-) retention from combining plant residues and fertiliser-N was highly dependent on potential N mineralisation (r = -0.96) and the (lignin + polyphenol)-to-N ratio (r = 0.98) of the residues. Fertiliser-N-derived retention was zero for a legume-based mulch but up to 80% in the treatment containing plant residues with a high (lignin + polyphenol)-to-N ratio. N(2) O emissions increased after the addition of residues, and increased further (up to 128%) following the combined application of inorganic fertiliser and residues. Fertiliser-derived (15) N-N(2) O was <1.4% of the total (14+15) N-N(2) O emission and <0.01% of the applied (15) N-NO(3) (-) . Enhanced N(2) O emissions following the application of residues and the fertiliser-N values were positively correlated with the C:N ratio of the residue. Thus, combining organic- and inorganic-N immobilised a significant proportion of the inorganic N with little increase in N(2) O, especially in low C:N ratio residues.The results demonstrate that whilst there is potential for N(2) O emissions to be controlled by combining weed residues and inorganic fertilisers, this is not easy to achieve as the magnitude and direction of interactions vary between different species due to their varying substrate qualities.
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|a Hatch, D.J.
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700 1 _ |0 P:(DE-Juel1)145865
|a Bol, R.
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700 1 _ |0 P:(DE-Juel1)VDB109841
|a Baggs, E.M.
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773 _ _ |0 PERI:(DE-600)2002158-6
|a 10.1002/rcm.6254
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|t Rapid communications in mass spectrometry
|v 26
|x 0951-4198
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856 7 _ |u http://dx.doi.org/10.1002/rcm.6254
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