Potassium powers soybean yield. Nitrogen and phosphorus make key contributions and then there are the micros like sulphur and boron that pitch in and help.
How much of these nutrients should growers apply in 2022 to optimize their soybean acres? How do you navigate the challenge of skyrocketing fertilizer prices and availability versus lucrative market prices for the oilseed crop?
To answer those questions, why not start with the soil test values for the intended soybean fields. That's what Ontario Ministry of Agriculture, Food and Rural Affairs soybean specialist Horst Bohner is telling growers this spring. "It's a great indicator of whether or not you can expect a response" to your fertilizer investment, he says.
For the past two years, Bohner has been conducting fertilizer trials to determine soybean yield response in poor soil testing fields (P= 2 ppm, K=98 ppm) and good soil testing fields (P=22 ppm, K=153 ppm). On this episode of RealAgriculture's Soybean School, he shares his data and why he recommends growers consider not applying fertilizer this year in fields that have good fertility levels.
#agronomy #farming #soybeans #nutrients #fertilizer
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