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Name: Fertilizer Urea (46-0-0)

Material Type

fertilizer

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2025-03-14	Fertilizer Application	Fertilized LTER Main Site Winter Wheat plots T1, T2, T3, and T8nt (all reps) with mix of Urea (46-0-0) and Ammonium Sulfate (21-0-0-24) granular fertilizer. This was mixed 100 lbs each and applied at 200 lbs/A, providing 67 lbs N/ A and 24 lbs Sulfur/A, Density of this fertilizer mix was 55 lbs/cu ft. T2 plots were fertilized on Wednesday 3/12/25 (reps 5, 3, 2, 4, 1, and 6). T1 plots were fertilized on Thursday 3/13/25 (reps 1, 5, 6, 4, 3, and 2). T8nt plots were fertilized on Thursday 3/13/25. T3 (reps 5, 4, 2, and 1) were fertilized Thursday 3/13/25 and T3 (reps 3 and 6) on Friday 3/14/25, T3 prairie strips were not fertilized. Application was done with JD 7420b and Gandy Orbit Air w/ 30' boom, at a speed of 4 mph. JD rate controller set to 200 lbs/A and Gandy fan pressure approx. 15 oz/in2.
2025-04-16	Fertilizer Application	Fertilize LTAE corn and oats. Rep five was done with the gandy on 4/17.
2026-06-02	Fertilizer Application	Fertilize B2W sorghum with 30 lbs. N per acre. The clover cover crop is expected to contribute about 50 lbs. N. Fertilize the north half of IP1 black beans with 40 lbs. N per acre.
2026-06-02	Fertilizer Application	Fertilize B2W sorghum with 30 lbs. N per acre. The clover cover crop is expected to contribute about 50 lbs. N. Fertilize the north half of IP1 black beans with 40 lbs. N per acre.
2026-05-07	Fertilizer Application	Fertilize plots that will be planted to corn. For the swine manure fields only T2 (no manure) was fertilized.
2026-05-07	Fertilizer Application	Fertilize short corn herbicide field.
2026-05-14	Fertilizer Application	Fertilize microplots to equate compost nutrients in the no/reduced compost treatments. T1 received the full rate of all products. T2 received phosphate and potash only. T5 received phosphate and potash at 75%.

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