Welcome to this special throwback episode of the Yara Crop Nutrition Podcast! We’re revisiting a classic episode from 2019, which is part of a series dedicated to exploring each essential plant nutrient. In this episode, Dr. Steve Petrie, retired Director of Agronomic Services, dives into the vital role of phosphorus in crop nutrition. He breaks down the “Four Rs” of phosphorus application: the right rate, the right source, the right placement, and the right timing. Dr. Steve also emphasizes the importance of soil testing, discusses the benefits of banded versus broadcast applications, and highlights the value of foliar treatments for addressing late-season phosphorus deficiencies. Whether you’re new to nutrient management or looking to refresh your knowledge, this episode offers timeless insights that are just as relevant today.

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