
Headed by Dr. Jared Spackman, the objective of this research was to determine the effect of adding Huma Gro® X-Tend® B to split applications of different rates of nitrogen fertilizer. Barley (cultivar: ABI Voyager) was grown at the agricultural research facility of the University of Idaho in Aberdeen, Idaho. The crop was planted on April 20 and harvested on August 20.
The experiment was conducted as a randomized complete block with four replications. Barley was grown under five different fertilizer regimes with 0, 45, 90, and 135 lb of urea-N per acre. The urea-N applications were split in two for 45, 90, and 135 lb N/acre and in three sequences for a 90 lb N/acre strategy. Each set of urea fertilizer had two scenarios. For the first scenario, the urea fertilizer was not coated with any material. Then, urea granules were coated with X-Tend® B at 2 quarts per ton for the second scenario. The two-way split applications were applied at planting and mid-to-late tillering stages. The three-way split application for 90 lb N/acre was done at planting, mid-to-late tillering, and at flag leaf emergence.
The results proved that coating urea granules with X-Tend® B increased barley yield under all different nitrogen levels in various split scenarios and led to a higher net gain per acre.
The Huma Gro® product X-Tend® B used in this experiment is an enhanced efficiency fertilizer (EEF) with high levels of organic acids and nutrients. It is formulated to be blended in liquid fertilizers or to be impregnated onto dry fertilizers. According to several research studies, EEF additives and humates both have shown to improve crop yield.
To access the research report, click HERE.
Related Posts
This Week in Ag #52
What are farmers doing during these cold winter days? If they farm in the Midwest, they may be laying tile. I realize this may be a foreign concept to my friends in the west, but in many areas of the Corn Belt, you must often move water out of your fields. In heavier soils, excessive rainwater can remain
What Determines a Farmer’s Crop Choice?
Ever wonder why farmers grow the crops they do? From soil type and climate to markets and processing plants, a wide range of factors influence what ends up in each field.
The Water Break Podcast Hits 4,000 Downloads
This week, our Water Break Podcast reached the milestone of 4,000 downloads. Our fanbase is growing quickly, as it took us 18 episodes and 16 months to reach 3,000 downloads but then only 3 more episodes to reach the 4,000-download mark. The statistics report from Blubrry, our podcast hosting service, has also let us know

