Minerals In Domestic Wools

Burns, Robert H.; Johnston, A.M.; Hamilton, John; McColloch, R. J.; Duncan, W E; Fisk, H. G.

doi:10.2527/jas1964.2315

Cited by 23 publications

(6 citation statements)

References 6 publications

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“…Nutrient and trace element concentration in wool and hair‐wastes in this study is comparable to other reports (Burns et al, 1964; Grace, 1983; Kargin et al, 2004; Miekeley et al, 1998; Nowak, 1998; Starks et al, 1953; Zheljazkov, 2005; Zheljazkov et al, 2008) (Table 2). However, in most other studies, the wool or hair samples were carefully washed before analysis (Kargin et al, 2004; Starks et al, 1953), which resulted in different concentrations of nutrients and trace elements.…”

Section: Discussionsupporting

confidence: 91%

Uncomposted Wool and Hair‐Wastes as Soil Amendments for High‐Value Crops

Zheljazkov

Stratton²,

Sturz³

2008

Agronomy Journal

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A gronomy J our n al • Volume 10 0 , I s sue 6 • 2 0 0 8 1605 ABSTRACT Th e hypothesis of this work was that uncomposted sheep wool and human hair could be used as nutrient source for nonedible high-value plants. Pot and fi eld experiments were conducted to assess uncomposted sheep wool-wastes and human hair-wastes as a nutrient source for high-value crops and to evaluate the eff ect of these waste materials on soil microbial community and mycorrhizae. In the pot experiments, addition of uncomposted wool-or hair-waste to soil increased yields from pot marigold (Calendula offi cinalis L.) and valerian (Valeriana offi cinalis L.). In the fi eld experiment, wool-waste was added to purple foxglove (Digitalis purpurea L.) at rates of 0, 15.8, and 31.7 t ha −1 . Wool additions to soil increased foxglove yields over the next two seasons by 1.7 to 3.5 times relative to the control. Overall, addition of wool-or hair-waste to soil increased NH 4 -N and NO 3 -N in soil, increased total N (and protein) concentration in plant tissue, and stimulated soil microbial biomass. Scanning electron microscopy (SEM) and energy dispersive x-ray (EDX) analyses indicated that some of wool and hair in soil from the pot and fi eld experiments, aft er two seasons and several harvests, retained their original structure, a signifi cant concentration of S, some N, and were not fully decomposed. High rates of wool addition to soil in fi eld experiments resulted in shift s in the microbial community composition, while a low rate of wool-waste addition did not aff ect the microbial community relative to the unamended control. Our results suggest that the addition of uncomposted wool-waste or hair-waste of only 0.33% by weight to soil would support at least 2 to 3 harvests of crops, without the addition of other fertilizers. Uncomposted wool and hair-wastes can be used as a nutrient source for high-value crops.

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Section: Discussionsupporting

confidence: 91%

Uncomposted Wool and Hair‐Wastes as Soil Amendments for High‐Value Crops

Zheljazkov

Stratton²,

Sturz³

2008

Agronomy Journal

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“…The very high concentration of K in wool is due to suint (a wool grease excreted from the roots of the wool fibers). Suint has been used as K fertilizer in the past, because K concentration in this product could be as high as 187,500 mg kg À1 (Burns et al, 1964).…”

Section: Introductionmentioning

confidence: 99%

Wool-waste as organic nutrient source for container-grown plants

et al. 2009

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“…The mean Zn concentration (278 lAg/g) of the wool was higher and the mean Cu concentration (7.1 IAg/g) lower ( Burns et al (1964).…”

Section: Woolmentioning

confidence: 99%

Amounts and distribution of mineral elements associated with fleece-free empty body weight gains in the grazing sheep

Grace¹

1983

New Zealand Journal of Agricultural Research

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Fifty N.Z. Romneys (25 wethers and 25 ewes) grown from weaning to young adult, grazing a ryegrass/white clover pasture, were used to study the distribution of sodium (Na), potassium (K), magnesium (Mg), calcium (Ca), phosphorus (P), zinc (Zn), iron (Fe), copper (Cu), and manganese (Mn) among the various organs and tissues as well as the amounts associated with each kg gain in fleece-free empty body weight. Each kg gain in fleece-free empty body weight was associated with 0.92,2.1,0.29, 10.5, and 5.2 g of Na, K, Mg, Ca, and P respectively as well as 24,55,0.77, and 0.47 mg of Zn, Fe, Cu, and Mn respectively. The value for the fleece-free empty body Cu does not include the quantities of Cu which are stored in the liver. The mean quantities of Zn, Cu, and Mn associated with each kg of wool grown were 278, 7.1, and 3.5 mg respectively.

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Minerals In Domestic Wools

Cited by 23 publications

References 6 publications

Uncomposted Wool and Hair‐Wastes as Soil Amendments for High‐Value Crops

Uncomposted Wool and Hair‐Wastes as Soil Amendments for High‐Value Crops

Wool-waste as organic nutrient source for container-grown plants

Amounts and distribution of mineral elements associated with fleece-free empty body weight gains in the grazing sheep

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