Priming Effect of Nitrogen Fertilizers on Soil Nitrogen

Fried, Maurice; Broeshart, H.

doi:10.2136/sssaj1974.03615995003800050046x

Cited by 18 publications

(10 citation statements)

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“…Experiments sometimes show that A values increase with increasing addition of fertilizer N (Broadbent, 1970;Pomares-Garcia & Pratt, 1978), sometimes remain much the same (Legg & Allison, 1959;Aleksic et al, 1968;Fried & Broeshart, 1974) and sometimes decrease (Broadbent, 1970). Legg & Stanford (1967) found that A values for their intermediate N application level were frequently less than for the lower and higher levels, exactly as modelled in Fig.…”

Section: (D) Apparent Nitrogen Interactions and The A-value A Valuesmentioning

confidence: 99%

“…If, as is usually the case, w > v, the addition of fertilizer N will appear to increase the uptake of soil N, although the total uptake of soil N by the whole crop is unaffected. (Fried & Dean, 1952) have been used as a criterion of whether or not there has been a nitrogen interaction in an experiment (Legg & Stanford, 1967;Aleksic et al, 1968;Fried & Broeshart, 1974;Hills et al. 1978).…”

Section: (C) Apparentmentioning

confidence: 99%

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Interactions between fertilizer nitrogen and soil nitrogen—the so‐called ‘priming’ effect

Jenkinson

Fox

Rayner

1985

Journal of Soil Science

696

300

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Experiments with ' 5N labelled fertilizers often show that plants given fertilizer N take up more N from the soil than plants not given N-the priming effect or 'added nitrogen interaction' (ANI). This paper is a theoretical study of ANIs and how they can affect the interpretation of experiments with "N labelled fertilizers. ANIs can be 'real', if for example, fertilizer N increases the volume of soil explored by roots, or 'apparent', caused by pool substitution or by isotope displacement reactions. Pool substitution is the process by which added labelled N stands proxy for native unlabelled N that would otherwise have been removed from that pool. Microbial immobilization of N, whether driven by the decomposition of soil organic matter or by the decomposition of plant roots, can lead to pool substitution and is the dominant cause of apparent ANIs. Denitrification and plant uptake of N can also, under special circumstances, lead to pool substitution and thus give rise to apparent ANIs. Isotope displacement reactions, in which the added labelled N displaces native unlabelled N from a 'bound' pool, can lead to apparent ANIs but are only likely to be of significance in exceptional circumstances.The relationship between ANIs, 'A' values and N fertilizer uptake efficiencies are examined by means of a simple model for uptake of "N-labelled fertilizer by a cnp. A positive 'apparent' AN1 is accompanied by an 'A' value that changes as fertilizer applications increase. Likewise, a positive 'apparent' AN1 also causes fertilizer uptake efficiency to appear lower when measured by the uptake of I5N than when measured by the non-isotopic 'difference' method. I N T R O D U C T I O NNitrogen-15 labelled fertilizer is often used in experiments on the fate of fertilizer nitrogen, one of the aims being to distinguish between soil-derived (unlabelled) nitrogen and fertilizer-derived nitrogen. It is commonly (but not always, e.g. Leitch & Vaidyanathan, i983) observed in such experiments that plants given fertilizer N take up more unlabelled N from the soil than plants receiving no fertilizer N. Such an increase in N derived from soil following fertilizer additions is sometimes referred to as a 'priming' effect (Hauck & Bremner, 1976), a term introduced by Bingeman et al. (1953) in a paper about the effects of the addition of fresh organic material on the decomposition of organic matter already in the soil. The presence of plants is not essential for a priming effect; more unlabelled inorganic N is often observed in soil incubated with labelled inorganic N than in the corresponding soil incubated without labelled N. There has been considerable controversy over the cause and interpretation of this phenomenon (Broadbent

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Section: (D) Apparent Nitrogen Interactions and The A-value A Valuesmentioning

confidence: 99%

Section: (C) Apparentmentioning

confidence: 99%

Interactions between fertilizer nitrogen and soil nitrogen—the so‐called ‘priming’ effect

Jenkinson

Fox

Rayner

1985

Journal of Soil Science

696

300

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“…The increase in inorganic N in the 0-2.5 and 2.5-5 cm layers in all management systems may be associated with the mineralization of soybean plant residues, which increased the N supply for the microbial biomass, thereby accelerating the nitrification process (Robertson & Groffman, 2007). Gonçalves et al (2000), Amado et al (2001) and Weber & Mielniczuk (2009) found that the use of legumes in crop rotation increases soil N. This increase may also occur in the mineralization of native soil N, which is an effect known as "priming" (Fried & Broeshart, 1974).…”

Section: Concentration Of Inorganic Nmentioning

confidence: 99%

Nitrogen dynamics in soil management systems. I - flux of inorganic nitrogen (NH4+ and NO3-)

Sá

Cardoso²,

Briedis³

et al. 2011

Rev. Bras. Ciênc. Solo

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RESUMO: DINÂMICA DO NITROGÊNIO EM SISTEMAS DE MANEJO DO SOLO. I-FLUXO DO NITROGÊNIO INORGÂNICO (NH ) preparo convencional (PC); 2) preparo mínimo (PM); 3) plantio direto com escarificação a cada três anos (PDE); e 4) plantio direto permanente (PDP). Para avaliar a dinâmica do N inorgânico, as subparcelas foram constituídas pelo tempo de coleta (11 tempos de coleta -T 1 a T 11 ). O conteúdo de N amoniacal (N-NH

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“…According to Fried and Broeshart (1974), the magnitude of the "A" value, indicating the reserve of nitrogen available to plants, does not depend on the dosage of fertilizer; this is a constant value and the nitrogen fertilizer does not have an effect on an increase in the nitrogen mineralization rate in soil. The A-value concept is based on the assumption that major soil elements are absorbed by plants, proportionately to the content of their available forms in the soil.…”

Section: Experimental Designmentioning

confidence: 99%

Available Nitrogen in the Surface Mineral Layer of Natural Meadows

Dželetović¹,

Mihailović²

2017

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Based on a greenhouse experiment, we evaluated nitrogen availability in the surface mineral layer of soil under various natural meadow stands by analyzing the following soil characteristics: total organic C, total N, initial content of easily available N inorganic forms, mineralized N content obtained by aerobic and anaerobic incubations and A-value. The experiment was performed on a test plant and through the application of urea enriched with 5.4 % 15 N. The investigated soils under natural meadows are characterized with comparatively high mineralization intensity and high N availability indices. Contents of mineral N produced by aerobic incubation and the intensity of the mineralization correlate with the total organic C in the soil and the total N in the soil. Correlation of the availability index of the soil N produced by aerobic incubation with the total organic C and the total N in the soil under natural meadows is almost linear (r = 0.9981 and r = 0.9997, respectively). Contents of mineral N produced by anaerobic incubation, as well as the corresponding N availability and mineralization intensity indices correlate poorly with the mentioned parameters. Efficiency of nitrogen utilization from the applied N-fertilizer by the test crop varies within a wide range of values and correlates with the biomass yields of the test crop.

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Priming Effect of Nitrogen Fertilizers on Soil Nitrogen

Cited by 18 publications

References 0 publications

Interactions between fertilizer nitrogen and soil nitrogen—the so‐called ‘priming’ effect

Interactions between fertilizer nitrogen and soil nitrogen—the so‐called ‘priming’ effect

Nitrogen dynamics in soil management systems. I - flux of inorganic nitrogen (NH4+ and NO3-)

Available Nitrogen in the Surface Mineral Layer of Natural Meadows

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