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Some farmers have had record-breaking soybean yields this year. Still, others are fighting one of the toughest harvest seasons they've ever faced. The combination of high moisture levels, low temperatures and slow crop development mean even if you yield big, you may have to pay a little extra to get the grain put away this fall, whether on your farm or at the grain elevator.
So, what are some of the soybean issues this year's weather has created? The big one is the crop's maturity: Rain-delayed planting and cool summer temperatures kept beans in a lot of areas behind schedule, development-wise. Then, when frost hit earlier this fall, some beans were left without reaching full maturity.
"The major impact will be the creation of high-moisture green soybeans. Frost damaged soybeans also have lower oil and less extractable oil than the average for the area. Greenness is a processing problem; greater refining losses are incurred in removing the green color," says Iowa State University (ISU) Extension agronomist Palle Pedersen. "Greenness will subside somewhat after several weeks of aeration, which is also necessary to reduce the moisture."
But, it's not just a problem once the green beans are through to the processor. It may require you to keep a closer eye on your combine reel as you're rolling through the field. "Green soybeans will be harder to separate in combines; expect more pods and foreign matter (FM) as well. Moisture meters read low on mixtures of mature and immature beans," Pedersen adds.
When it's all said and done, whether your soybeans are harvested while still a little on the immature side, or they've been nipped by frost before you can get into the field, this will likely lead to a lower-quality feed product.
"Soybean protein contents are low (31% to 34%) and oil contents above average (19% or greater)," says Iowa State University Extension agronomist Palle Pederson. "This will produce high-protein meals in the 45% to 47% protein range, although normally the essential amino acids (lysine, methionine and cysteine) do not fall off as rapidly as protein, leading to potentially good nutritional value for swine and poultry."
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