English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The paper presents a method for precise estimation of evapotranspiration of selected turfgrass species. The evapotranspiration functions, whose domains are only two relatively easy to measure parameters, were developed separately for each of the grass species. Those parameters are the temperature and the volumetric moisture of soil at the depth of 2.5 cm. Evapotranspiration has the character of a modified logistic function with empirical parameters. It assumes the form ETR( θ   2.5 cm ,  T   2.5 cm ) =  A /(1 +  B  ·  e   − C ·( θ  2.5 cm  ·  T  2.5 cm ) ), where: ETR( θ   2.5 cm ,  T   2.5 cm ) is evapotranspiration [mm·h −1 ],  θ   2.5 cm  is volumetric moisture of soil at the depth of 2.5 cm [m 3 ·m −3 ],  T   2.5 cm  is soil temperature at the depth of 2.5 cm [°C], and  A, B , and  C  are empirical coefficients calculated individually for each of the grass species [mm·h 1 ], and [—], [(m 3 ·m −3 ·°C) −1 ]. The values of evapotranspiration calculated on the basis of the presented function can be used as input data for the design of systems for the automatic control of irrigation systems ensuring optimum moisture conditions in the active layer of lawn swards.

TDR Technique for Estimating the Intensity of Evapotranspiration of Turfgrasses