Premium
Evapotranspiration of Cotton and Estimation Methods 1
Author(s) -
Namken L. N.,
Gerard C. J.,
Brown R. G.
Publication year - 1968
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1968.00021962006000010002x
Subject(s) - evapotranspiration , water content , moisture , environmental science , soil texture , hydrology (agriculture) , zoology , soil water , soil science , agronomy , mathematics , geography , meteorology , geology , biology , ecology , geotechnical engineering
Average measured E T curves and E T /R S curves were developed for estimating short‐period (7 to 14 days) or seasonal E T for cotton grown under wet, moderate, and dry soil moisture regimes on a medium‐ and a fine‐textured soil in the Lower Rio Grande Valley of Texas. Maximum average E T rates ranged from 0.46 cm per day for the dry moisture regime to 0.74 cm per day on the wet moisture regime on the medium‐textured soil compared with 0.46 to 0.76 cm per day on the dry and wet moisture regimes, respectively, on the fine‐textured soil. Comparison of the two estimating methods indicated that cotton E T estimates made from average E T were as reliable as estimates made from E T /R S and solar radiation.