K-State Research and Extension

 Table of Contents

  PERFORMANCE OF LOCALLY CALIBRATED IRRIGATION SCHEDULING TECHNIQUES IN WEST CENTRAL NEBRASKA.................................. 1

   Hope Njuki Nakabuye, Tsz Him Lo, Daran Rudnick, Jacob Nickel, and Turner Dorr 

   IRRIGATION SCHEDULING USING A WATER BALANCE MODEL AND SOIL MOISTURE SENSORS.......................................................... 11

   Allan Andales

  IRRIGATION SCHEDULING WITH TEMPERATURE APPROACHES..... 17

   José Chávez

  NITRATE LEACHING UNDER VARYING IRRIGATION TREATMENTS IN CORN PRODUCTION................................................................... 22

   Xin Qiao and Bijesh Maharjan

   INFORMING NITROGEN FERTIGATION OF CORN USING ACTIVE OPTICAL SENSORS..................................................................... 30

    Tsz Him Lo, Daran Rudnick, and Brian Krienke

   THE ECONOMICS OF ADOPTING TECHNOLOGY AND/OR CHANGES IN METHODS............................................................................. 36

    Matt Stockton

   SUMMARY OF EVALUATIONS OF CENTER PIVOT UNIFORMITY.................................................................................. 44

   Danny Rogers and Jonathan Aguilar

   ENERGY CONSERVATION USING VARIABLE FREQUENCY DRIVES FOR CENTER PIVOT IRRIGATION SYSTEMS.......................................... 60

  Dilshad Brar, William Kranz, Derrel Martin, and Suat Irmak

  EFFECT OF LIMITED WATER SUPPLIES ON CENTER PIVOT PERFORMANCE.......................................................................... 71

   Derrel Martin, Derek Heeren, Steve Melvin, and Troy Ingram

   EVALUATION OF MOBILE DRIP IRRIGATION (MDI) AND OTHER SPRINKLER PACKAGES .........................  98

   Jonathan Aguilar, Danny Rogers, Tobias Oker and Isaya Kisekka  

  ADVANCES IN SDI FERTIGATION FOR CORN............................... 108

   Freddie Lamm

   IMPACTS OF RESIDUE MANAGEMENT IN IRRIGATED PRODUCTION.......................................................................... 122

   Joel Schneekloth, Francisco Calderon, and Steven Fonte 

   IN-CANOPY VS. ABOVE-CANOPY SPRINKLERS, WHICH IS BETTER SUITED TO YOUR FIELD?........................................................... 133

    Steve Melvin and Derrel Martin 

    LIMITED IRRIGATION OF GRAIN SORGHUM............................... 142

    Alan Schlegel, Freddie Lamm and Isaya Kisekka

   CORN PRODUCT RESPONSE TO INPUTS..................................... 152

    Brian Olson and Mark Reiman