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GIFS researchers at USask identify protein that helps tell plants ‘no’ when nitrogen is low

Research led by a post-doctoral fellow at the Global Institute for Food Security (GIFS) at the University of Saskatchewan (USask) is shedding new light into how a protein helps plants acquire nitrogen and other important nutrients for growth.

Dr. Mutsutomo Tokizawa (PhD), a post-doctoral research fellow at GIFS, is the lead author of a new study with Dr. Leon Kochian (PhD), Canada Excellence Research Chair in Global Food Security at USask and research group lead at GIFS. The researchers have identified a novel regulatory mechanism that helps plant roots conserve resources in nitrogen-deficient soils and use them for enhanced growth of the tap root, which can grow deeper into the soil in search of areas with higher concentrations of the nutrient.

The findings support long-term initiatives to develop new crop varieties with root-related traits that help agricultural producers optimize fertilizer applications.

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R3 Corn Growth Stage Explained: Why Late-Season Tissue Sampling Matters

Video: R3 Corn Growth Stage Explained: Why Late-Season Tissue Sampling Matters

Corn pollination may be behind us, but the work isn't over.

In this field update from the Nutrien Innovation Farm in Champaign, Illinois, agronomist Tim Sickman discusses why growers should stay engaged with field scouting during the R3 (milk) stage of corn development. While favorable weather, strong pollination, and early grain fill are encouraging signs, important questions about crop nutrition and yield potential still remain.

Tim explains: What the R3 corn growth stage looks like

Why successful pollination isn't the finish line

The importance of late-season field scouting

How tissue sampling can identify nutrient deficiencies

The role of sulfur, zinc, potassium, and other nutrients during grain fill

Using tissue analysis to improve future fertility management plans

As corn moves through grain fill, understanding nutrient availability and plant health can provide valuable insights for maximizing yield potential and planning for next season.