Distribution of Mineral Nitrogen in Soil in Relation to Risk of Nitrate Leaching in Farms with Irrigated Vegetables and Early Potatoes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F18%3A00005539" target="_blank" >RIV/00027006:_____/18:00005539 - isvavai.cz</a>

Result on the web

<a href="https://content.sciendo.com/view/journals/johr/26/2/article-p47.xml" target="_blank" >https://content.sciendo.com/view/journals/johr/26/2/article-p47.xml</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Distribution of Mineral Nitrogen in Soil in Relation to Risk of Nitrate Leaching in Farms with Irrigated Vegetables and Early Potatoes

Original language description

Vegetable production may be the source of excessive residual nitrate that is prone to leaching to waters. To ascertain the risk of nitrate leaching in water collection area, the content of soil mineral nitrogen (Nmin = N-NO3- + N-NH4+) down to 120 cm depth was monitored in the years 2013-2016 on vegetable farms along lower Jizera river (in the Czech Republic). The risk of nitrate leaching below 30, 60, 90 and 120 cm during winter period was simulated with a simple model. The depths represent the limits of effective root depth and N depletion of groups of vegetables and field crops. The average autumn mineral nitrogen content in the fields, during experimental years, ranged from 101 kg to 134 kg N·ha-1 in the 0-120 cm soil layer, 85 to 92% of which was in the form of nitrate. The calculated leaching of nitrate from the topsoil (0-30 cm) and shallow subsoil (0-60 cm) ranged from 27 to 41%, and from 7 to 14% of autumn content, respectively. The risk of leaching below 60 cm and 90 cm was near to none during the experimental years due to the exceptionally low precipitation. High nitrate content in subsoil layers below 60 cm constitutes risk of leaching and water pollution due to shallow root systems of many vegetables and potatoes in seasons with normal weather and higher water percolation.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

<a href="/en/project/QJ1320213" target="_blank" >QJ1320213: Inovation of farming production systems in the environment of quaternary sediments, their evaluation and application in water sources protection zones</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Journal of Horticultural Research

ISSN

2300-5009

e-ISSN

2353-3978

Volume of the periodical

26

Issue of the periodical within the volume

2

Country of publishing house

PL - POLAND

Number of pages

8

Pages from-to

47-54

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85069956091