Effect of Nitrogen and Sulphur Fertilisation on Yields, Nitrates and Cysteine and Methionine Content in Onion (Allium cepa L.)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F10%3A00130505" target="_blank" >RIV/62156489:43210/10:00130505 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Nitrogen and Sulphur Fertilisation on Yields, Nitrates and Cysteine and Methionine Content in Onion (Allium cepa L.)

Popis výsledku v původním jazyce

This study explored the interactive effects of two doses of nitrogen and two levels of soil sulphur on onion yields, nitrate content and concentration of the amino acids cysteine and methionine under accurately controlled conditions. Onions were cultivated in Mitscherlich pots with 6 kg of soil with a low content of sulphates (5 ppm, S0) or a high content (30 ppm, S1) with added doses of 0.6 (N1) and 1.2 (N2) g N pot-1 as (NH4)2SO4 and NH4NO3. There were no significant differences (P<0.05) in onion yields between the two N doses. The higher sulphur content (S1) increased yields by 7.0-8.4% compared with S0 for both doses of nitrogen. The nitrate content in fresh onion increased with nitrogen dose (225 and 566 mg NO3/kg for N1 and N2 respectively). Highsulphur reduced the nitrate content of onions by 19.3-20.5% depending on nitrogen dose. The contents of cysteine and methionine increased by on average 39.1% and 25%, respectively, with increasing nitrogen dose. Soil sulphur content did

Název v anglickém jazyce

Effect of Nitrogen and Sulphur Fertilisation on Yields, Nitrates and Cysteine and Methionine Content in Onion (Allium cepa L.)

Popis výsledku anglicky

This study explored the interactive effects of two doses of nitrogen and two levels of soil sulphur on onion yields, nitrate content and concentration of the amino acids cysteine and methionine under accurately controlled conditions. Onions were cultivated in Mitscherlich pots with 6 kg of soil with a low content of sulphates (5 ppm, S0) or a high content (30 ppm, S1) with added doses of 0.6 (N1) and 1.2 (N2) g N pot-1 as (NH4)2SO4 and NH4NO3. There were no significant differences (P<0.05) in onion yields between the two N doses. The higher sulphur content (S1) increased yields by 7.0-8.4% compared with S0 for both doses of nitrogen. The nitrate content in fresh onion increased with nitrogen dose (225 and 566 mg NO3/kg for N1 and N2 respectively). Highsulphur reduced the nitrate content of onions by 19.3-20.5% depending on nitrogen dose. The contents of cysteine and methionine increased by on average 39.1% and 25%, respectively, with increasing nitrogen dose. Soil sulphur content did

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GD - Hnojení, závlahy, zpracování půdy

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta horticulturae

ISSN

0567-7572

e-ISSN

—

Svazek periodika

852

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—