RATIO BETWEEN EVAPOTRANSPIRATION OF IRRIGATED CROPS FROM FLOATING LYSIMETERS AND CLASS A PAN EVAPORATION
- 1 January 1980
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Plant Science
- Vol. 60 (1) , 197-201
- https://doi.org/10.4141/cjps80-026
Abstract
The crop coefficient (Kc), the ratio of crop evapotranspiration (ET) to potential or maximum evapotranspiration (ETo) was determined for early potatoes, corn and processing tomatoes grown on Fox sandy loam near Harrow, Ontario. ET was measured with floating lysimeters and ETo with Class A pan. The value of Kc depends on the percentage of foliage cover on the soil, increasing from emergence to approximately 50–80% of foliage cover, remains at a maximum value for about 2–5 wk, and thereafter decreases during the late season stage until the crops approach maturity.This publication has 0 references indexed in Scilit: