The sulphur status of intensive grassland sites in southern Scotland

Keer, J. I.; McLaren, R. G.; Swift, R. S.

doi:10.1111/j.1365-2494.1986.tb01803.x

Cited by 16 publications

(4 citation statements)

References 8 publications

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“…Factors that have been implicated include decreased inputs of S, due to a decline in deposition of atmospheric S (Bristow & Garwood, 1984), and the replacement of S-containing fertilizer by high-analysis materials containing small or insignificant amounts of S. Concurrent with the decline in S inputs, the requirement for S has been increasing owing to improved crop yield brought about, in part, by heavier use of fertilizer nitrogen. In Britain, crop responses to S have to date been confined to areas with low atmospheric S inputs (McLaren et al, 1978;Scott et al, 1983;Keer et al, 1986) but there have been predictions (Bristow & Garwood, 1984;Syers et at., 1987) that the problem of inadequate S supply will become more widespread if the downward trend in SO, emissions continues.…”

Section: Introductionmentioning

confidence: 99%

Extractability and adsorption of sulphate in soils

Curtin

Syers

1990

Journal of Soil Science

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upon Tyne NEI 7RU. U K S U M M A R YVirtually all of the indigenous sulphate (SO,) in a range of UK soils with moderately high pH values (> 6) was found to be present in the soil solution and, as a consequence, was highly susceptible to leaching. For acid soils containing adsorbed SO,, the extractability of SO, in NaCl and CaCI, solutions was dependent on both the ionic strength and cation species. Addition of small amounts (< -1 0 -2~) of either NaCl or CaCI, actually decreased the amount of SO, extracted, but SO, extractability increased sharply with concentrations of NaCl or CaCI, higher than about 0.1 M. At a similar ionic strength, more SO, was extracted by NaCl than CaCI,. Sequential extraction with 1 M NaCl removed essentially all of the absorbed SO,. The release characteristics of SO, were very different to those of phosphate and this difference in behaviour is not easily reconciled with the view that SO, is chemisorbed, as is phosphate. Except for a few acid soils with high oxide contents, the capacity of the soils to adsorb added SO, was quite small. None of the soils with pH values higher than 6 adsorbed a significant amount SO,. The results raise questions regarding the efficiency of SO,-containing fertilizers in correcting and preventing S deficiency in situations where leaching is important. *Present address: Agriculture Canada Research Station, PO Box 1030, Swift Current, Saskatchewan S9H 3x2. Canada.

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Section: Introductionmentioning

confidence: 99%

Extractability and adsorption of sulphate in soils

Curtin

Syers

1990

Journal of Soil Science

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“…S levels in animal feed of 3 to 4 g kg −1 DM can cause toxic effects in cattle and sheep but can also have indirect effects such as copper deficiencies [30][31][32][33]. S in crops is related to S fertilization at deficient nutrient levels [34][35][36], while it is unknown if S levels have a plateau or increase at surplus S levels (luxury consumption) [37]. With 2.1 g of S kg −1 DM in the unfertilized grass in the sandy and clay soil, the fertilized grass had 3.6-5.2 g of S kg −1 DM, showing the risk of AS fertilization at 298 and 326 kg of SO 3 ha −1 for the first grass cut and 247 and 262 kg of SO 3 ha −1 for the second grass cut (Table A3).…”

Section: Discussionmentioning

confidence: 99%

Environmental Effects of Using Ammonium Sulfate from Animal Manure Scrubbing Technology as Fertilizer

Rietra,

van Dijk,

Schoumans

2024

Applied Sciences

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Processed manure products have the potential to substitute chemical fertilizers and the use of these products may increase resource efficiency in the food system and decrease emissions of ammonia (NH3) and greenhouse gasses (GHG). The yields of maize and grass, as well as emissions, have been determined from a processed manure product: liquid ammonium sulfate from nitrogen stripping animal manure (AS), in comparison to a regular mineral fertilizer, calcium ammonium nitrate (CAN), in a greenhouse experiment and a field demonstration using a sandy and a clay soil. NH3 emissions were determined by comparing AS with a dairy manure as a reference. The yield of both crops, their nitrogen nutrient use efficiency (NUE), and nitrous oxide (N2O) emissions were not significantly different, while NH3 emission was lower from AS compared to the dairy manure. As a side-effect, the sulfur (S) contents of the grass in the fields fertilized with AS were much higher than in the non-fertilized control. We conclude that AS, produced here with a pH < 5.5, can be used as an alternative for CAN in Dutch dairy systems, or similar other system, if S leaching losses do not pose a problem for the environment. Meanwhile, care should be taken not to exceed S in feed above toxic levels for ruminants.

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“…Sea-borne aerosols can contribute to S input and reduce the risk of S deficiency (McGrath and Johnston, 1986) although this assumption has been questioned on the evidence of responses to S having been recorded near the sea (Tisdale et al, 1986). Keer et al (1986) have identified low organic-matter, light-textured soils as the most likely to respond to S, but this has been challenged by Chaney and Kershaw (1986) who found soil texture and organic matter content to be poor predictors of S response. However, the most likely reason for the difference in response between Campbeltown and Monktonhill sites is that whereas the former were situated in the lee of the Kintyre peninsula and in an area unpolluted by industrial activity, the Ayrshire coast sites at Monktonhill are windward to prevailing westerlies and nearer industrial zones.…”

Section: Discussionmentioning

confidence: 99%

The effect of fertilizer sulphur on grass production for silage

Klessa

Frame

Golightly

et al. 1989

Grass and Forage Science

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The effects of rate and pattern of fertilizer S application on herbage production from Perennial ryegrass‐dominant swards at six potentially S‐deficient sites in south‐west Scotland were measured under a silage cutting regime (3 cuts year‐1) with high fertilizer N application (300 kg ha−1 year‐1). Fertilizer S (as gypsum) was applied at annual rates from 0 to 48 kg ha−1 as single spring applications before the first cut or split before each of the three cuts. The residual effect of S in the year following its application was assessed at one site. Applied S increased total DM production at four of the six sites. These increases were restricted to the second and/or third cuts and were generally in the range 10‐30% greater than where no S was applied. Timing of S application was not important in influencing annual DM yield. The residual effect of gypsum in the year following application was small. The supply of available soil S is limiting herbage production in certain areas and soil types of south‐west Scotland. Areas of S deficiency are likely to increase in the future and need to be identified more precisely than they are at present.

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The sulphur status of intensive grassland sites in southern Scotland

Cited by 16 publications

References 8 publications

Extractability and adsorption of sulphate in soils

Extractability and adsorption of sulphate in soils

Environmental Effects of Using Ammonium Sulfate from Animal Manure Scrubbing Technology as Fertilizer

The effect of fertilizer sulphur on grass production for silage

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