Utilization of water for evapotranspiration of selected grass species depending on ground water level and mixture species composition
Halina Lipińska
Ryszard Baryła
Abstract
The paper presents results of three-year studies (2001–2003) upon evapotranspiration of grasses performed for grazing on peat-bog soil. The aim of the studies carried out in lysimeters was to evaluate water utilization for evapotranspiration of Lolium perenne, Phleum pratense and Poa pratensis depending on ground water level and mixture species composition. Grasses were sown in pure sowing and the following mixtures: Pp; Pp+Php; Php; Pp+Lp; Lp at two ground water levels (90 cm and 50 cm). The amount of water utilization by the sward of particular species and mixtures within 10-day periods was estimated on the basis of: useful precipitation, changes of soil profile retention, water poured in and poured out from lysimeters. Then, 10-day values of the real evapotranspiration values were calculated. The studies revealed that the amount of water utilized for real evapotranspiration of tested grasses was significantly differentiated depending on ground water level as well as the species composing a mixture. Significant differences were also recorded in particular cuts, which may prove the effect of weather and yield elements on evapotranspiration.
License
Articles are made available under the conditions CC BY 4.0 (until 2020 under the conditions CC BY-NC-ND 4.0).
Submission of the paper implies that it has not been published previously, that it is not under consideration for publication elsewhere.
The author signs a statement of the originality of the work, the contribution of individuals, and source of funding.
Self-Archiving Policy
Agronomy Science has adopted a self-archiving policy called blue by the Sherpa Romeo database. From 2021 authors can self-archive article postprints and editorial versions (under the CC BY 4.0 licence). Articles from earlier years (available under the CC BY-NC-ND 4.0 licence) can only be self-archived as editorial versions.
