Digestate is equal or a better alternative to mineral fertilization of Kohlrabi

Losak, T.; Musilová, L.; Zatloukalová, A.; Szostková, M.; Hlusek, J.; Fryč, J.; Vítěz, T.; Haitl, M,; von Bennewitz, Eduardo; Martensson, A.

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dc.contributor.author	Losak, T.
dc.contributor.author	Musilová, L.
dc.contributor.author	Zatloukalová, A.
dc.contributor.author	Szostková, M.
dc.contributor.author	Hlusek, J.
dc.contributor.author	Fryč, J.
dc.contributor.author	Vítěz, T.
dc.contributor.author	Haitl, M,
dc.contributor.author	von Bennewitz, Eduardo
dc.contributor.author	Martensson, A.
dc.date.accessioned	2017-12-14T12:26:51Z
dc.date.available	2017-12-14T12:26:51Z
dc.date.issued	2012
dc.identifier.uri	http://repositorio.ucm.cl/handle/ucm/1623
dc.description.abstract	In a one-year vegetation pot experiment, we compared the eff ect of digestate from a biogas station and mineral fertilisers on yield and quality parameters of kohlrabi, variety Segura F1. Four treatments were used in the trial: 1) untreated control, 2) urea, 3) digestate, 4) urea, triple super phosphate, KCl, MgSO4. The N dose was the same in treatments 2–4, 1.5 g N/pot. In treatment 4 the P, K and Mg doses corresponded to those supplied in the digestate treatment (3). The weight of single kohlrabi bulbs in the unfertilised control was signifi cantly lower (36.2%) than in the urea treatment (100%) and the other fertilised treatments. A er application of digestate (treatment 3) and mineral fertilisers (treatment 4), the weight of single bulbs signifi cantly increased by 36.2 and 33.6%, respectively, compared with the urea treatment (2). The content of ascorbic acid did not diff er between the fertilised treatments (282–301 mg/kg), but was signifi cantly lower than in the unfertilised control (334 mg/kg). There were signifi cant diff erences between all fertilised treatments (2, 3, 4) in bulb nitrate content (745, 187, 462 mg NO3 -/kg fresh matter, respectively). A er digestate application the content decreased signifi cantly, to 187 mg NO3−/kg fresh matter. The soil Nmin content a er harvest varied between 4.19–5.79 mg/kg in all fertilised treatments and the N-NH4 + form prevailed over N-NO3− only in the digestate treatment (3.45/2.34 mg/kg). We recommend the use of digestate to kohlrabi as it results in comparable or better yield and qualitative parameters of kohlrabi compared with mineral fertilizers.	es_CL
dc.language.iso	en	es_CL
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 Chile	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/cl/	*
dc.source	Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 60(1), 91-96	es_CL
dc.subject	Ascorbic acid	es_CL
dc.subject	Mineral fertilizers	es_CL
dc.subject	Mineral nitrogen	es_CL
dc.subject	Nitrate	es_CL
dc.subject	Urea	es_CL
dc.title	Digestate is equal or a better alternative to mineral fertilization of Kohlrabi	es_CL
dc.type	Article	es_CL
dc.ucm.facultad	Facultad de Ciencias Agrarias y Forestales	es_CL
dc.ucm.indexacion	Scopus	es_CL