Utilisation of waste wool from mountain sheep as fertiliser in winter wheat cultivation

Broda, Jan; Gawłowski, Andrzej; Rom, Monika; Kobiela-Mendrek, Katarzyna

doi:10.1080/15440478.2023.2200047

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…The variability of macro-and microelements in the three types of pellets may also be related to the presence of organic matrices (plants and manure) in the greasy wool: this aspect also needs to be further investigated in future studies. Specifically, the inclusion of elements like iron, copper, manganese, and zinc in the pellet, which are mostly derived from wool, is very important for plant development [20].…”

Section: Pellet Characterizationmentioning

confidence: 99%

“…[15], causing transmissible diseases, it must be subject to the risk mitigation measures provided for in Regulation (EC) No 1069/2009 [11]. Sheep wool has been tested as a fertilizer in various forms, e.g., washed wool fibers, wool residues from industrial washing, and hydrolyzed wool [16][17][18][19][20][21][22], with positive results on crop productions and soil moisture retention. Bradshaw and Hagen [23] reported how wool pellets are a viable alternative to commercial fertilizers for organic vegetable production as they showed very similar growth and mineral uptake as compared to commercial fertilizers.…”

Section: Introductionmentioning

confidence: 99%

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Wool Agro-Waste Biomass and Spruce Sawdust: Pellets as an Organic Soil Amendment

Dal Prà,

Ugolini,

Negri

et al. 2024

Sustainability

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The production of wool is an economic burden and an issue for sheep breeders in many countries of the European Union because shorn greasy wool is defined as an animal byproduct (category 3) and must be sent to landfill as a special waste if not addressed in the textile supply chain. Nevertheless, wool is an important source of nitrogen, with high potential as agricultural renewable and sustainable organic fertilizer. To apply wool to soil, any contamination from harmful bacteria (e.g., Listeria monocytogenes and Salmonella spp.) should be excluded. In this study, we developed sheep wool pellets to test their suitability for use as an organic fertilizer. Wool was rich in N (12% of dry material) and was mixed to spruce sawdust at sawdust: wool ratios of at 2:1; 1:1 (v/v) to increase soil organic carbon. Despite the different mix of wool and sawdust, pellets were similar in size (diameter and length), and the content of the elements suited the requirements of fertilizers and did not present harmful bacteria after pelletization. Therefore, wool pellets may represent a feasible solution to provide sheep wool with an added value, introducing it in a circular economy process. However, further study is needed to test the effects of the produced fertilizing pellets in real cropping systems.

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Section: Pellet Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wool Agro-Waste Biomass and Spruce Sawdust: Pellets as an Organic Soil Amendment

Dal Prà,

Ugolini,

Negri

et al. 2024

Sustainability

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show abstract

“…These proteins can be exploited to create cosmetic skin-care preparations [2], fabrication of various biomaterials for the biomedical field such as wound dressings in the form of sponges [3], small pellets for drug delivery [4], nanoparticles for gene delivery [5], protective shields employed in ophthalmology [6], and biomaterials to assist in the development of neo-organs [7]. Due to advancements in animal production practices, livestock waste and by-products can now be repurposed and treated to yield fertilizers [8][9][10], feed [11,12], and biopolymers [13][14][15][16], resulting in a substantial reduction of pollution. Nonetheless, the development of biomaterials could present a more effective approach to managing animal by-products, as it can generate innovative biomedicals for pharmaceutical applications [17].…”

Section: Introductionmentioning

confidence: 99%

Conversion of Animal-Derived Protein By-Products into a New Dual-Layer Nanofiber Biomaterial by Electrospinning Process

Gaidău,

Râpă,

Stefan

et al. 2023

Fibers

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The aim of this study was to design a dual-layer wound dressing as a new fibrous biomaterial based on the valorization of animal-derived proteins. The first layer was fabricated by the deposition of poly(ethylene oxide) (PEO) loaded with keratin hydrolysate (KH) via a mono-electrospinning process onto a poly(lactic acid) (PLA) film, which was used as a support. The second layer consisted of encapsulating a bovine collagen hydrolysate (CH) into poly(vinyl pyrrolidone) (PVP) through a coaxial electrospinning process, which was added onto the previous layer. This assemblage was characterized by electronic microscopy for morphology and the controlled release of KH. In vitro biocompatibility was evaluated on the L929 (NCTC) murine fibroblasts using quantitative MTT assay and qualitative cell morphological examination after Giemsa staining. Additionally, in vivo biocompatibility methods were used to assess the impact of the biomaterial on white Swiss mice, including the evaluation of hematological, biochemical, and immunological profiles, as well as its impact on oxidative stress. The results revealed a nanofibrous structure for each layer, and the assembled product demonstrated antioxidant activity, controlled release of KH, a high degree of in vitro biocompatibility, negligible hematological and biochemical changes, and minimal impact of certain specific oxidative stress parameters compared to the use of patches with textile support.

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Reducing Mineral Fertilizer Usage: Utilizing Sheep Wool and Alkaline Hydrolysate for Enhanced Sugar Beet Cultivation

Taskin

2024

Sugar Tech

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The effects of sheep wool (SW) and its hydrolysate (H) on the vegetative growth, root development, nutrient concentrations and sugar quality parameters of sugar beet grown under full (FF) and reduced fertilizer (RF) conditions were investigated. The treatments were as follows: FF, FF + SW (4 g kg−1) and FF + SW + H (4 g kg−1 + 4 ml kg−1), RF, RF + SW (4 g kg−1) and RF + SW + H (4 g kg−1 + 4 ml kg−1). The shoot and root samples were collected at two-week intervals from the beginning of root development to harvest. In these samples, temporal change of leaf mineral element concentrations and sugar quality parameters of the sugar beet roots were determined. Reduced fertilizer application did not have a negative effect on shoot and root growth. SW and SW + H treatments significantly increased total shoot (40.2 and 52.1%) and root yield (4.59 and 7.61%) of sugar beet in reduced fertilizer conditions. Nitrogen (N), calcium (Ca) and magnesium (Mg) concentrations of shoots increased significantly with SW and SW + H applications. Similar increases were also observed for phosphorus (P) in the 3rd sampling period. The treatments did not have an effect on potassium (K) concentrations of shoots but some increases observed in Na and α-amino N concentrations depending on SW and SW + H treatments. The SW and SW + H treatments significantly reduced sugar existence and refined sugar existence. On the other hand, the treatments had no significant effect on the refined sugar at harvest periods. Sheep wool and H can be incorporated into organomineral fertilizers, potentially reducing excessive fertilizer use and improving fertilizer efficiency.

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Utilisation of waste wool from mountain sheep as fertiliser in winter wheat cultivation

Cited by 5 publications

References 39 publications

Wool Agro-Waste Biomass and Spruce Sawdust: Pellets as an Organic Soil Amendment

Wool Agro-Waste Biomass and Spruce Sawdust: Pellets as an Organic Soil Amendment

Conversion of Animal-Derived Protein By-Products into a New Dual-Layer Nanofiber Biomaterial by Electrospinning Process

Reducing Mineral Fertilizer Usage: Utilizing Sheep Wool and Alkaline Hydrolysate for Enhanced Sugar Beet Cultivation

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