Growth responses to lime and fertilizers and critical concentrations in herbage of white clover in Scottish hill soils

Rangeley, Anne; Newbould, P.

doi:10.1111/j.1365-2494.1985.tb01754.x

Cited by 9 publications

(2 citation statements)

References 19 publications

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“…Floate & Logan, 1985; Gasser, 1985;Rangeley & Newbould, 1985). The cost of providing fences, so essential to control grazing of improved pastures, has remained relatively stable and in some cases (i.e.…”

Section: Benejcialmentioning

confidence: 99%

Improvement of native grassland in the uplands

Newbould¹

1985

Soil Use and Management

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Abstract. Recent progress in the techniques for improving the quality and quantity of herbage produced from indigenous hill pasture is described. There is general agreement on the main technical requirements for most situations. Knowledge of hill soils and vegetation and of the proposed grazing strategies for hill sheep are required initially so that the most economical and biologically appropriate method can be selected. In brief, soil pH must be raised by liming to at least 5.5; for each hectare, between 40–60 kg P and 80–100 kg K must be added plus a starter dressing of between 50–100 kg N after which a seeds mixture of grasses and white clover (25–30 kg seed ha−1) should be sown. Inoculation of clover seed with rhizobia is advised for all hill soil types but is essential for white clover sown in deep peat. Seeds must be sown in April or May, cultivation should be limited as far as possible for both technical and financial reasons, and new pastures should be grazed lightly initially, with subsequent rest periods to aid the persistence of white clover. Maintenance dressings of lime and fertilizer are required, more so in wetter areas. Careful monitoring of stock grazing recently improved hill pasture is advised to check for the occurrence of trace element problems. It is clear that the key to more efficient livestock rearing in the hills and uplands lies in pasture improvement and optimum utilization and maintenance of the upgraded pastures.

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Section: Benejcialmentioning

confidence: 99%

Improvement of native grassland in the uplands

Newbould¹

1985

Soil Use and Management

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“…Increasing cultivation and productivity of white clover through soil application of sewage sludge is in accordance with the European Green Deal since inorganic N fertilization in arable soils can be reduced by both sewage sludge's N content and white clover's atmospheric N 2 fixation [17]. The response of white clover to liming and inorganic fertilization has also been investigated so far [18][19][20]. Clover has also been used as an indicator plant for investigating the effects of soil-applied sewage sludge [15].…”

Section: Introductionmentioning

confidence: 99%

Soil Application of Sewage Sludge Treated with Clay Minerals or Biochar and Its Effect on Soil Properties and White Clover’s (Trifolium repens L.) Growth and Arbuscular Mycorrhizal Fungal Root Colonization

2022

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From the perspective of finding new, more environmental-friendly methods for the stabilization of sewage sludge to be used in agriculture, sludge treated with 15% bentonite, vermiculite or biochar was investigated as a soil amendment for white clover (Trifolium repens L.) growth, by means of a pot experiment. The sludge treatments, which were applied to two soils (an acid and an alkaline soil), in three replications, were the addition of 2% (≈80 Mg ha−1) treated sludge with the clay minerals or biochar, as well as limed or untreated (air-dried) sludge (for comparison reasons). Additional treatments with inorganic fertilization or neither organic nor inorganic fertilization (control) were also included. The application of 2% sludge to both soils significantly increased salinity compared to the control, which remained below harmful levels for sensitive crops, except for the case of untreated sludge. Furthermore, it significantly increased the soil-available macronutrients N, P and K, and micronutrients Cu, Zn (several times, especially in the case of untreated sludge) and B (up to three times) compared with the control. Moreover, the pH of the acid soil was improved, except for the case of limed sludge, where an undesirable pH increase close to 8.5 was observed. Addition of the treated sludge with the clay minerals or biochar and untreated sludge to the acid and alkaline soil significantly increased the aboveground biomass yield of white clover by 117–233% and 114–153%, respectively, compared to the control, whereas limed sludge had no effect. Plant nutrient uptake increased as well. In general, the effect of sludge on soil microbiological properties and arbuscular mycorrhizal fungal root colonization was ambiguous. It was concluded that 2% soil addition of sewage sludge treated with 15% bentonite, vermiculite or biochar could improve soil fertility and enhance plant growth; however, caution is needed with respect to potential risks of soil salinization or Zn and B phytotoxicities.

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SHORT COMMUNICATION Growth and Development of White Clover (Trifolium repensL.) as Influenced by P and K Nutrition

Bailey¹

1998

Annals of Botany

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Growth responses to lime and fertilizers and critical concentrations in herbage of white clover in Scottish hill soils

Cited by 9 publications

References 19 publications

Improvement of native grassland in the uplands

Improvement of native grassland in the uplands

Soil Application of Sewage Sludge Treated with Clay Minerals or Biochar and Its Effect on Soil Properties and White Clover’s (Trifolium repens L.) Growth and Arbuscular Mycorrhizal Fungal Root Colonization

SHORT COMMUNICATION Growth and Development of White Clover (Trifolium repensL.) as Influenced by P and K Nutrition

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