Komorowska, MonikaNiemiec, MarcinSikora, JakubSzelag-Sikora, AnnaGrodek-Szostak, ZofiaFindura, PavolGurgulu, Hatice2026-01-242026-01-2420221996-1073https://doi.org/10.3390/en15176358https://hdl.handle.net/20.500.12868/5417As a country with not only significant production potential but also fragmented land ownership, the Kyrgyz Republic struggles with environmental efficiency, which is a strategic element of environmental management in agricultural production. The objective of this study was to assess the environmental efficiency of sheep's wool when used as a fertilizer in bean production in northern Kyrgyzstan. In this study, the efficiency indicator was taken to be GHG emissions per functional unit of product, using a proprietary methodology for calculating GHG emissions to determine the true value of this material as a source of soil nutrients and organic matter. Two experimental factors were used in the experiment: fertilizer type and fertilizer rate. Fertilization with sheep wool resulted in a 15% higher bean yield compared to when fertilized with mineral fertilizers at a comparable rate, converted to pure nitrogen. By using sheep wool as a source of mineral nutrients for the plants, the carbon footprint was reduced by almost 10% compared to a facility with mineral fertilization. Therefore, the use of sheep wool as a source of plant nutrients is environmentally justified.eninfo:eu-repo/semantics/openAccessrenewable energy sourcesKyrgyzstansheep woolquality systemsmanagementsustainable developmentClosed-Loop Agricultural Production and Its Environmental Efficiency: A Case Study of Sheep Wool Production in Northwestern KyrgyzstanArticle10.3390/en1517635815172-s2.0-85137983522Q1WOS:000851026700001Q3