Premium
A dynamic model of corn yield response to water
Author(s) -
Morgan Thomas H.,
Biere Arlo W.,
Kanemasu Edward T.
Publication year - 1980
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr016i001p00059
Subject(s) - limiting , irrigation , environmental science , soil science , soil water , sensitivity (control systems) , yield (engineering) , water content , agronomy , mathematics , hydrology (agriculture) , agricultural engineering , engineering , geotechnical engineering , materials science , metallurgy , biology , mechanical engineering , electronic engineering
A dynamic model of corn yield response to daily available soil moisture is presented. Using a priori information on dry matter accumulation in the plant when water is not limiting and using spline regression, we estimate the function of crop response to soil moisture from experimental test plot data. With the estimated model we simulate the corn yields for various irrigation schedules. The simulations demonstrate the sensitivity of the model to the timing of irrigations.