Farmers may need to make some tough decisions this spring due to the lack of fertilizer applied last fall. University of Minnesota Extension Soil Scientist Daniel Kaiser says planting corn during its optimal planting window is still the best option for yield. However, it does limit post-planting fertilizer application options. “If you have high enough soil tests, five gallons of 10-34-0 tends to be enough to get through the year. It all depends on soil test.” Sulphur and nitrogen can be broadcast on the soil surface, but Kaiser says phosphate and potassium are the biggest challenge. “Farmers have to be careful with liquid fertilizer in terms of rate. They put a lot of investment in seed, and if there’s too high of a rate there are stand reductions.”
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