About this Session

Nitrogen Management Challenges in Furrow-Irrigated Rice and Available Nitrogen Technology Solutions

Presented by: Cullin Minter Strategic Account Manager, Koch Agronomic Services, LLC

With reduced tillage furrow-irrigated rice acres growing and gaining popularity, new challenges exist in nitrogen management for rice producers. In addition to volatilization loss, furrow-irrigated rice creates an environment where denitrification loss can be expected. While urease inhibitors protect against volatilization effectively, once the urea is incorporated by irrigation, below-ground loss needs to be considered. Koch Agronomic Services, LLC has been testing SUPERU® fertilizer in furrow-irrigated rice since 2017. SUPERU is a 46-0-0 fertilizer with both a urease inhibitor and nitrification inhibitor infused homogenously in each granule. The two active ingredients provide protection against all three major nitrogen loss mechanisms: volatilization, denitrification, and leaching. We have seen significant yield increases and more consistent results in furrow-irrigated rice fields when using SUPERU.

Evaluation of Nitrogen Management in Furrow Irrigated Rice

Presented by: Dr. Dustin Harrell Professor, Louisiana State University Agriculture Center – Rice Research Station

Furrow irrigated rice (FIR) has increased in popularity over the past three-years and is set to increase in acreage again in 2020. Nitrogen (N) management in FIR is less efficient as compared to traditional flooding due to the alternating wetting and drying of the soil. Several trials were established in 2018 and 2019 to evaluate N management in FIR. Trials evaluated N rates, N application timings, and enhanced efficiency fertilizers.