All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Effect of fertilization on water use and yield of hops in mature hop plantation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F19%3A43915689" target="_blank" >RIV/62156489:43410/19:43915689 - isvavai.cz</a>

  • Alternative codes found

    RIV/14864347:_____/19:N0000020

  • Result on the web

    <a href="http://dx.doi.org/10.17660/ActaHortic.2019.1236.7" target="_blank" >http://dx.doi.org/10.17660/ActaHortic.2019.1236.7</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.17660/ActaHortic.2019.1236.7" target="_blank" >10.17660/ActaHortic.2019.1236.7</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effect of fertilization on water use and yield of hops in mature hop plantation

  • Original language description

    The effect of decreasing nutrient availability on the ecophysiology and production of hop cones was studied in a plantation of cultivar &apos;Premiant&apos;, in Žatec hop growing region, Czech Republic. The plantation used to be fertilized by 60 t of manure ha -1 year -1 until November 2011 when it was discontinued as a part of the measures towards organic farming. Measurements of total evapotranspiration from the plantation using the Bowen ratio energy balance method, transpiration of hop bines by the means of sap flow, soil water and nutrient availability were conducted from 2011 to 2014. The yield of hop cones and the content of alpha acids were monitored in this period too. The concentration of total soil nitrogen (N) dropped from 19.4 mg kg -1 in March 2012 to 8.2 mg kg -1 in November 2014. Similarly, the content of N in leaves declined from 4.1% of dry mass in 2012 to 2.5% in 2014. The ratio between total evapotranspiration from the plantation to the potential evapotranspiration (PET) was not affected by the soil nutrient availability and did not vary among the years of study, ranging between average to 91 and 96% of PET. In the contrast to total evapotranspiration and PET, the proportion of hop transpiration on the total evapotranspiration steadily declined from 74 to 46% in 2011 and 2014, respectively. Plant regulation of stomatal conductance changed, bringing along lower stomatal aperture, especially upon the conditions of low vapor pressure deficit. In line with decline in transpiration and stomatal conductance, yield of alpha-acids declined from 204 kg ha-1 in 2011 to 97 kg ha-1 in 2014. To sum up, after the stop in fertilizing, total water use of the plantation remained similar as before, but the transpiration and production of alpha acids ha -1 significantly decreased.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    40101 - Agriculture

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Acta Horticulturae 1236

  • ISBN

    978-94-6261-234-1

  • ISSN

    0567-7572

  • e-ISSN

    2406-6168

  • Number of pages

    8

  • Pages from-to

    45-52

  • Publisher name

    International Society for Horticultural Science

  • Place of publication

    Leuven

  • Event location

    Yakima

  • Event date

    Aug 4, 2015

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article