WebJul 6, 2024 · Therefore, supplemental nitrogen applications need to be determined as economical for the crop and may need to be applied spatially and at varying rates across the field to avoid over application and unnecessary compaction to otherwise healthy plants in the field where saturation may not have occurred (Nielsen, 2004). References: WebNov 15, 2024 · So, that begs the question, when it looks like N prices might be the highest in history, how much N does a corn crop really need? Lets start with a little calculation: A ton of 32% weighs 2000 lbs and a gallon weighs about 11 lbs. 2000 lbs divided by 11 lbs/gal …
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WebWe suggest that 0 to 255 pounds of K 2 O per acre should be applied to corn according to soil-test K concentration in the topsoil and expected corn yield. First-year corn should be fertilized with 0 to 160 pounds of P 2 0 5 per acre according to soil-test phosphorus (P) concentration in the topsoil and expected corn yield. WebJan 1, 1997 · For corn, if the fertility level is good, a small amount of fertilizer (about 100 pounds of starter per acre) will provide an adequate starter response. Do not apply more than 70 pounds of N + K 2 O per acre if the fertilizer is placed approximately 2 inches away from the seed. Reduce the rate if starter is placed closer than 2 inches from the ... darnoldin twitter
Should Supplemental Nitrogen be Applied to Corn following Heavy …
WebApr 10, 2024 · In continuous corn, we’ve seen some benefit to nitrogen and sulfur banded on the soil surface to the side of the seed row. This also can work for corn following soybean in poorly drained soils. ... For high residue systems, you’ll likely need nitrogen and sulfur combinations of 28 or 32% UAN with ammonium thiosulfate banded on the soil ... WebApr 7, 2024 · "With that 1:1:1 nutrient analysis in our compost, that gives us 31 pounds of nitrogen, phosphorus and potassium per 1,000 square feet or 1,350 pounds of each per acre," Secraw said. WebDeficiencies are rare even though the soybean plant requires more nitrogen than corn, and as a result can fix up to 50% of its own nitrogen. In central and north central Iowa, the nutrient most often limiting is iron, and this deficiency is only found in calcareous soils with high pH where the iron is bound tightly to the soil. When nutrients ... darn motivational interviewing worksheet