Water Requirement of Dryland Rice under Plastic Film mulch
LI Rong-chao
PENG Shi-zhang
WANG Yong-le
ZHANG Yu-min
YU Jian-he
Abstract：According to experimental data for water requirement of Dryland rice under plastic filmmulch(DRPFM), crop water requirement, water use rate and modules in different growth stages,months and in different ten-day periods are analyzed. Compared with the data from paddy rice culti-vated under "Shallow-moistened-sunbaked" irrigation system, (fields are covered with shallow waterlayer in early stages, and moistened or sunbaked intermittently in later growing stages according towater requirement and water supply conditions, refered as CK), average evapotranspiration and waterconsumption rate under DRPFM reduce 195.9 mm (29.94%) and 1.7 mm/d respectively. These re-sults provide a scientific basis for extending the water-saving and yield-raising technique of DRPFM.
Keywords：dryland rice under plastic film mulchwater requirementwater use ratewater require- ment module
Publication Date：2000-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 24-28 )