Date of Award
11-23-2015
Document Type
Thesis
Degree Name
Agriculture, MSA
First Advisor
Tina Teague
Committee Members
Calvin Shumway; Dennis Morris; Michele Reba
Call Number
LD 251 .A566t 2015 C28
Abstract
Expanded use of irrigation management tools is needed to improve water use efficiency in eastern Arkansas soybean (Glycine max) production. Irrigation initiation timing was studied on a furrow irrigated, sandy loam commercial field in Mississippi County. A major objective was to develop, validate, and expand use of irrigation timing cues, incorporating local weather station data, atmometers, and soil moisture measurements. Four timing treatments were evaluated: early, recommended, late, and rainfed, and the crop and pest response to each. With above average rainfall in 2014 and 2015, results showed little variation of soybean yield. Yield monitor data indicated penalties only within sand blows in rainfed strips and yield boosts within sandy loam areas of the late initiated treatment in 2014, with no differences in 2015. These results show that a reduced number of early irrigations may be possible with no yield penalty. A conservative irrigation regime may, in fact, boost yield.
Rights Management
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Chlapecka, Justin, "Soybean Irrigation Initiation Timing Using Evapotranspiration and Soil Moisture Sensor Cues" (2015). Student Theses and Dissertations. 693.
https://arch.astate.edu/all-etd/693
