Sheep wool and leather waste as fertilizers in organic production of asparagus (Asparagus officinalis L.)

Sheep's wool and leather shavings tanned without chromium (III) salts would be suitable for fertilization in organic farming, where is the lack of easily accessible fertilizer nitrogen. This hypothesis was tested in a two-year field experiment growing asparagus at Rogelj organic farm in Kranj (...

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Main Authors: Andrej VONČINA, Rok MIHELIČ
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2013-11-01
Series:Acta Agriculturae Slovenica
Subjects:
Online Access:https://journals.uni-lj.si/aas/article/view/14910
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author Andrej VONČINA
Rok MIHELIČ
author_facet Andrej VONČINA
Rok MIHELIČ
author_sort Andrej VONČINA
collection DOAJ
description Sheep's wool and leather shavings tanned without chromium (III) salts would be suitable for fertilization in organic farming, where is the lack of easily accessible fertilizer nitrogen. This hypothesis was tested in a two-year field experiment growing asparagus at Rogelj organic farm in Kranj (Slovenia). The block designed experiment with three replicates comprised fertilization treatments with sheep's wool (W), leather shavings (L), cattle manure (FYM) and unfertilized (Ø). Doses of fertilizers were relevant to 0 (Ø), 140 (W1, L1), 280 (W2, L2, FYM) and 560 kg (W3, L3) N/ha. Fertilizers were dosed the first year before the start of the vegetation. Within the next year we followed their subsequent effect. The highest soil mineral N was found in the W2, which produced also the highest asparagus yield (non-significant) in the first year. On contrary, NO3-N content in the asparagus crop was small what reflects the good synchrony of N mineralization and consumption of N at W2. Treatments W and L released significantly more N in the next year than the same dose of nitrogen from FYM. The experiment showed that mainly sheep wool represents a quality alternative organic fertilizer.
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spelling doaj-art-5d2ce427751540b58983d55bdff092002025-08-20T02:58:55ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412013-11-01101219120010.14720/aas.2013.101.2.1491021302Sheep wool and leather waste as fertilizers in organic production of asparagus (Asparagus officinalis L.)Andrej VONČINA0Rok MIHELIČ1Univ. v Ljubljani, Biotehniška fakulteta, Oddelek za agronomijo, Jamnikarjeva 101, SI – 1111 Ljubljana, SlovenijaUniv. v Ljubljani, Biotehniška fakulteta, Oddelek za agronomijo, Jamnikarjeva 101, SI – 1111 Ljubljana, SlovenijaSheep's wool and leather shavings tanned without chromium (III) salts would be suitable for fertilization in organic farming, where is the lack of easily accessible fertilizer nitrogen. This hypothesis was tested in a two-year field experiment growing asparagus at Rogelj organic farm in Kranj (Slovenia). The block designed experiment with three replicates comprised fertilization treatments with sheep's wool (W), leather shavings (L), cattle manure (FYM) and unfertilized (Ø). Doses of fertilizers were relevant to 0 (Ø), 140 (W1, L1), 280 (W2, L2, FYM) and 560 kg (W3, L3) N/ha. Fertilizers were dosed the first year before the start of the vegetation. Within the next year we followed their subsequent effect. The highest soil mineral N was found in the W2, which produced also the highest asparagus yield (non-significant) in the first year. On contrary, NO3-N content in the asparagus crop was small what reflects the good synchrony of N mineralization and consumption of N at W2. Treatments W and L released significantly more N in the next year than the same dose of nitrogen from FYM. The experiment showed that mainly sheep wool represents a quality alternative organic fertilizer.https://journals.uni-lj.si/aas/article/view/14910horticultureasparagusleather wastesheep woolorganic fertilizersnitrogen
spellingShingle Andrej VONČINA
Rok MIHELIČ
Sheep wool and leather waste as fertilizers in organic production of asparagus (Asparagus officinalis L.)
Acta Agriculturae Slovenica
horticulture
asparagus
leather waste
sheep wool
organic fertilizers
nitrogen
title Sheep wool and leather waste as fertilizers in organic production of asparagus (Asparagus officinalis L.)
title_full Sheep wool and leather waste as fertilizers in organic production of asparagus (Asparagus officinalis L.)
title_fullStr Sheep wool and leather waste as fertilizers in organic production of asparagus (Asparagus officinalis L.)
title_full_unstemmed Sheep wool and leather waste as fertilizers in organic production of asparagus (Asparagus officinalis L.)
title_short Sheep wool and leather waste as fertilizers in organic production of asparagus (Asparagus officinalis L.)
title_sort sheep wool and leather waste as fertilizers in organic production of asparagus asparagus officinalis l
topic horticulture
asparagus
leather waste
sheep wool
organic fertilizers
nitrogen
url https://journals.uni-lj.si/aas/article/view/14910
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