Reducing nitrogen leaching from dairy farm effluent-irrigated pasture using dicyandiamide: a lysimeter study

Williamson, J.C.; Taylor, Mykel R.; Torrens, R.S.; Vojvodić-Vuković, Maja

doi:10.1016/s0167-8809(98)00099-1

Cited by 51 publications

(33 citation statements)

References 15 publications

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“…Some authors, such as Williamson et al (1998), attribute only very minor effects to DCD in terms of reducing nitrate leaching, but the doses used in their experiments were very low (1.1% DCD). Similarly, Davies and Williams (1995), working with a soil column, did not observe any significant effects with DCD.…”

Section: Discussionmentioning

confidence: 99%

Comparison of nitrification inhibitors to restrict nitrate leaching in a maize crop irrigated under mediterranean conditions

Díez

Arauzo

Hernáiz

et al. 2010

Span. j. agric. res.

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The aim of this paper was to compare dicyandiamide (DCD) and 3,4 dimethylpyrazole phosphate (DMPP) as inhibitors of ammonium oxidation and nitrate leaching after applying fertilizer to a maize (Zea mays L.) crop grown under Mediterranean conditions. The effects of nitrification inhibitors were also compared to those of N fertilization without inhibitors and with split N application. In plots fertilized with ammonium sulphate nitrate (ASN), either DCD or DMPP lengthened ammonium presence in soil and produced lower soil NO 3 -concentrations (30% lower than in plots with no inhibitor). The use of DCD or DMPP achieved significant reductions in nitrate leaching. DCD showed excellent properties for controlling nitrate leaching, taking into account the fact that grain yield and N accumulated by plant were similar for the ASN-DCD and ASN treatments applied at the same N doses. The split N treatment did not offer any advantages in terms of leached nitrate, either with the use of single ammonium sulphate nitrate (ASN) or with single application of nitrification inhibitors. The nitrification inhibitors did not increase the yield but did not reduce it either. The drainage rate was the most important component of nitrate leaching. The low drainage values of the first year resulted in a sharp decline of nitrate leaching. However, the experiment of the second year, showed clear differences in nitrate leaching between treatments due to the greater drainage.Additional key words: dicyandiamide, dimethylpyrazolephosphate, N fertilization, split N application. ResumenComparación de dos inhibidores de la nitrificación para reducir la lixiviación de nitrato en un cultivo de maíz irrigado bajo condiciones mediterráneas El objetivo de este trabajo fue comparar el efecto de la diciandiamida (DCD) y el 3,4 dimetilpirazolfosfato (DMPP) como inhibidores de la nitrificación, en la fertilización nitrogenada de un cultivo de maíz (Zea mays L.) bajo condiciones mediterráneas. Se compararon los efectos de los inhibidores frente a la fertilización sin inhibidores y con aplicaciones divididas de nitrógeno. En parcelas fertilizadas con nitro sulfato amónico (ASN), tanto DCD como DMPP, prolongaron la presencia de amonio en el suelo, originando un descenso en las concentraciones de NO 3 -(30% menos que en parcelas fertilizadas sin inhibidor) y en consecuencia en la lixiviación de nitrato. El DCD mostró excelentes propiedades para controlar la lixiviación de nitrato, ya que la producción de grano y el N acumulado por la planta fueron similares para el tratamiento ASN-DCD y ASN, ambos aplicados a la misma dosis de N. El tratamiento de N en dosis divididas no ofreció ninguna ventaja sobre el nitrato lixiviado ni frente al uso de ASN solo, ni frente a la aplicación de ASN con alguno de los inhibidores de la nitrificación. En el experimento se observa que los inhibidores de la nitrificación no aumentan la producción pero tampoco la reducen. La dosis de drenaje fue el factor más importante en la lixiviación de nitrato. Los bajos valores de drenaje...

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Section: Discussionmentioning

confidence: 99%

Comparison of nitrification inhibitors to restrict nitrate leaching in a maize crop irrigated under mediterranean conditions

Díez

Arauzo

Hernáiz

et al. 2010

Span. j. agric. res.

View full text Add to dashboard Cite

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“…It does not leave persistent residues in the soil as it decomposes completely in the soil (Amberger 1989;McCarty & Bremner 1989). In fact, it is like a slowrelease N fertiliser which contains about 65% N. Dicyandiamide has been used in the past to increase the efficiency of N in fertilisers or manures with variable results (e.g., Amberger 1989;Wadman & Neeteson 1992;Davies & Williams 1995;Williamson et al 1998). However, until recently its potential to reduce nitrate leaching losses from grazed pasture systems had not been rigorously tested.…”

Section: Introductionmentioning

confidence: 99%

Treating grazed pasture soil with a nitrification inhibitor, eco‐n™, to decrease nitrate leaching in a deep sandy soil under spray irrigation—a lysimeter study

Cameron

2004

New Zealand Journal of Agricultural Research

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In grazed dairy pasture systems, a major source of nitrate leached is the nitrogen (N) returned in the urine from the grazing animal. The objective of this study was to use undisturbed soil monolith lysimeters to quantify the effectiveness of treating a grazed pasture soil with a nitrification inhibitor, trade name eco-n™ (active ingredientdicyandiamide, DCD), in decreasing NO 3 -leaching losses from a deep sandy Templeton soil (Udic Haplustept) with a mixture of perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) pasture. Simulated rainfall was applied in the winter to supplement the natural rainfall to the 75th percentile of local rainfall records, and spray irrigation was applied in the summer. The treatment of the soil with eco-n decreased NO 3 --N leaching from 85 to 20-22 kg N ha -1 yr -1 (equivalent to 74-76% reduction) for the dairy cow urine N applied in the autumn at the rate of 1000 kg N ha -1 . This reduced annual average NO 3 --N concentration under the urine patch from 25 to 7 mg N litre -1 . The eco-n treatment also reduced Ca 2+ leaching by 38-56% and Mg leaching by 21-42%. Ammonia volatilisation was not affected by the eco-n treatment. In addition, the eco-n treatment increased herbage dry matter yield in the urine patch areas by 33%, from 15.9 t ha -1 yr -1 without eco-n to 18.2t ha -1 yr -1 in the single eco-n application in May and to 21.1 t ha -1 yr eficial to the environment by reducing NO 3 -leaching but also has economic benefits by increasing nutrient use efficiency and pasture production.

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“…Schröder et al (1993) observed an increase in NREC following the addition of DCD to cattle slurry. Williamson et al (1998) found that 32% of the N applied in farm effluent was recovered, compared to 42% of the same effluent when DCD was added.…”

Section: Discussionmentioning

confidence: 99%

“…Possible explanations for the higher yields obtained with NH 4 + -N fertilisers supplemented with NI should be understood in terms of the reduction in N leaching and volatilisation losses, the partial nutrition of plants with NH 4 + , and the improved N supply resulting from fertiliser application. Williamson et al (1998), who worked with perennial ryegrass, observed an increase in dry matter yield that accounted for the N prevented from leaching due to the use of DCD.…”

Section: Discussionmentioning

confidence: 99%

“…Williamson et al (1998) observed that the inhibition of nitrification contributes to the enhancement of plant N uptake. Greater P uptakes due to DMPP (an indirect advantage of its use) might be explained by the fact that DMPP improves the mobilisation and uptake of phosphates from the rhizosphere, probably due to the presence of ammonium ions in the soil solution (which might reduce soil pH) .…”

Section: Discussionmentioning

confidence: 99%

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Effects of DMPP [3,4-dimethylpyrozole phosphate] on the growth and chemical composition of ryegrass (Lolium perenne L.) raised on calcareous soil

Guillaumes

Mir

2004

Span. j. agric. res.

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This paper reports a 406 day outdoor experiment (performed in pots) to determine the influence of the new nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP), when added to pig slurry (PS), on the growth and chemical composition of ryegrass. Pots containing a loamy, calcareous soil were treated with either no PS or 73.7, 147.3 or 221 cubic cm pot-1, with or without DMPP, prior to seeding with ryegrass. The greatest quantity of above ground dry matter was obtained with the highest dose of PS + DMPP (36.3 g pot-1) 7.4% greater than that obtained for the same treatment without DMPP, and 46.1% greater than with the no PS treatment. The plants treated with the high and medium doses of PS + DMPP absorbed 70% of total N during the first quarter of the experimental season (104 days). Without DMPP, N uptakes were 55.7% and 63% for the high and medium treatments respectively. The inhibition of nitrification with DMPP increased agronomic efficiency and reduced N leaching by 17%.

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Reducing nitrogen leaching from dairy farm effluent-irrigated pasture using dicyandiamide: a lysimeter study

Cited by 51 publications

References 15 publications

Comparison of nitrification inhibitors to restrict nitrate leaching in a maize crop irrigated under mediterranean conditions

Comparison of nitrification inhibitors to restrict nitrate leaching in a maize crop irrigated under mediterranean conditions

Treating grazed pasture soil with a nitrification inhibitor, eco‐n™, to decrease nitrate leaching in a deep sandy soil under spray irrigation—a lysimeter study

Effects of DMPP [3,4-dimethylpyrozole phosphate] on the growth and chemical composition of ryegrass (Lolium perenne L.) raised on calcareous soil

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