Boron is an essential micronutrient that is critical for soybean plants to thrive. It is required for cell wall and xylem formation, cell elongation, metabolism of nitrogen and more. However, the incorrect amount of boron can lead to visibly stunted and unhealthy plants. Nathan Slaton, Ph.D., professor of soil fertility at the University of Arkansas, led the webinar below and provided numerous helpful soybean photos that growers can reference to recognize boron deficiency or toxicity in their fields.
Conditions that can contribute to boron deficiency:
High pH soil, above 6.5
Soils with low organic matter
Dry soil conditions
Recent lime application
Shallow soil or rooting depth
Signs of boron-deficient plants:
Dark green instead of light green leaves
Oddly shaped leaves
Plants deficient in boron retain their leaves longer during harvest time.
A tissue test is one of the most efficient ways to diagnose boron toxicity or deficiency.
Soil tests and seed tests are other options that will also indicate too much or too little boron.
20 – 60 parts per million of boron is the ideal range for soybeans.
One CEU in Nutrient Management is available for this webinar. Visit the Certified Crop Adviser website to self-report your credit after viewing the webinar recording.
The Illinois Soybean Association (ISA) checkoff and membership programs represent more than 43,000 soybean farmers in Illinois. The checkoff funds market development and utilization efforts while the membership program supports the government relations interests of Illinois soybean farmers at the local, state, and national level, through the Illinois Soybean Growers (ISG). ISA upholds the interests of Illinois soybean producers through promotion, advocacy, and education with the vision of becoming a market leader in sustainable soybean production and profitability.