OSU and CIMMYT Collaboration, Improved NUE for Spring Wheat ProductionTour of CIMMYT
Dr Ivan Ortiz-Monasterio discusses the importance of improving NUE in the Yaqui Valley. Dr Ortiz-Monasterio has extensive experience using the GreenSeeker Sensor which the Patronato President (Jorge Castro Campoy, furthest left sitting in the front row) would like to test in 2003 on various large-scale farms in the region.
On January
9, 2003, OSU and CIMMYT representatives discussed the use of the Sensor
Based Nitrogen Rate Calculator (SBNRC) for spring wheat production in Ciudad
Obregon. Over 35 farmers and cooperators were in attendance, including
the President of the Patronato, Jorge Castro Campoy. Initial stages of
this work would include the use of hand-held sensors that include the SBNRC
for immediate N rate recommendations in farmer fields where preplant N Rich
Strips were established.
Wheat yields in the Yaqui Valley have been know to exceed 150 bushels/acre in yield trials, and averages in farmer fields of 120 bushels/acres are not uncommon. Fertilizer N rates are quite high in this region, thus, this system could result in significant savings.
Ing. Manuel Ruiz collects sensor readings from a Durum Wheat Breeding nursery managed by Chewy Canales & Dr. Wolfgang Pfeiffer. Jesus Canalez, and Beatriz Martinez have coordinated data collection and management of this project using the GreenSeeker sensor to better predict spring wheat grain yields.
Coffee, Honduras
Corn, El Salvador
Corn residue, burning, Nicaragua
Lower plains, south of Guatemala City
Maize production, Honduras
Vigna interseeded in maize, Guatemala
Agronomy Journal 91:357
Yield level and Nitrogen response are Independent (corn and wheat) J. Prec. Agriculture 12:508-518
Trimble Greenseeker