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Economics of Soybean Maturity Groups’ Yield Response to Insecticides Seed Treatments with Early Planting

Economics of Soybean Maturity Groups’ Yield Response to Insecticides Seed Treatments with Early Planting. 1 Normie Buehring, 2 Angus Catchot, 3 Don Cook, and 3 Jeff Gore 1 NMREC Center; 2 Entomology and Plant Pathology Dept, MSU; 3 Delta Research and Extension Center. Objective.

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Economics of Soybean Maturity Groups’ Yield Response to Insecticides Seed Treatments with Early Planting

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  1. Economics of Soybean Maturity Groups’ Yield Response to Insecticides Seed Treatments with Early Planting 1Normie Buehring, 2Angus Catchot, 3Don Cook, and 3Jeff Gore 1NMREC Center; 2Entomology and Plant Pathology Dept, MSU; 3Delta Research and Extension Center

  2. Objective • Evaluate the effect of insecticide seed treatment on: • Variety Maturity Group (lll, lV, and V) and planting dates on growth and yield. • Returns above seed treatment cost. B. Determine optimum planting dates for soybean variety maturity groups.

  3. Locations: Verona, Starkville, and Stoneville • Maturity Groups Varieties: MGIII (AG3906); Early MGIV (AG4403); Late MGIV (Pioneer 94B73); Early MGV (DK5068); and Late MGV (DP5634). • Planting dates: Early April, Early May, and Early June. • Seed treatments: Apron (CK) and Apron + Cruiser.

  4. a a b b b bc bc bc cd d d de de de A + C = 28.3 a A = 26.5 b 1.8 e

  5. a a b bc cde bcd cde bcde def defg efg gh fgh hi A + C = 50.3 a A = 46.0 b 4.3 i

  6. 12D 16D 22D

  7. a a ab ab ab bc c c c c d d d de A + C = 64.0 a A = 61.9 b 2.1 e

  8. 14D 18D 22D

  9. Plant Height at Maturity Yield } b 2.7 a

  10. Acknowledgement This research was supported in part by the Mississippi Soybean Promotion Board.

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