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Information Journal Paper

Title

CORN YIELD RESPONSE TO POLYMER AND NON-COATED UREA PLACEMENT AND TIMINGS

Pages

  373-392

Abstract

 Poorly drained claypan soils can increase the importance of tillage and N management for corn (Zea mays L.) production. Field research in 2008, 2009 and 2010 (high rainfall years) near Novelty, MO (40o 1’ N, 92o 11’ W) sought to determine the effect of polymer-coated urea (PCU) placement [strip-tillage (ST) deep banded and NO-TILL (NT) broadcast] and application timing (fall, early preplant and preplant) on red clover (Trifolium pratense L.) biomass and corn response compared to non-coated urea (NCU) and anhydrous ammonia (AA) in the presence and absence of nitrapyrin a nitrification inhibitor. STRIP-TILLAGE reduced clover dry weights 20% in 2008 and 2009 and early preplant ST reduced dry weights 40 to 45% in 2010 compared to NT. Corn plant population was 8, 100 to 8, 400 plants ha-1 greater with ST compared to NT. Preplant applications of AA plus nitrapyrin, AA, ST placement of PCU and NCU increased grain yields 1 to 1.2 Mg ha-1 compared to fall applications of these fertilizer sources. Fall and preplant ST placement of PCU increased grain yields 1.2 Mg ha-1 compared to NCU. Strip-till placement of PCU and NCU increased yields 2.1 to 3.2 Mg ha-1 over broadcast applications of these fertilizer sources. Strip-till placement of PCU synergistically increased yield over NCU and broadcast applications of PCU or NCU due to increased stands and possibly due to better plant utilization of the banded N fertilizer utility.

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  • Cite

    APA: Copy

    NASH, P.R., NELSON, K.A., & MOTAVALLI, P.P.. (2013). CORN YIELD RESPONSE TO POLYMER AND NON-COATED UREA PLACEMENT AND TIMINGS. INTERNATIONAL JOURNAL OF PLANT PRODUCTION, 7(3), 373-392. SID. https://sid.ir/paper/314689/en

    Vancouver: Copy

    NASH P.R., NELSON K.A., MOTAVALLI P.P.. CORN YIELD RESPONSE TO POLYMER AND NON-COATED UREA PLACEMENT AND TIMINGS. INTERNATIONAL JOURNAL OF PLANT PRODUCTION[Internet]. 2013;7(3):373-392. Available from: https://sid.ir/paper/314689/en

    IEEE: Copy

    P.R. NASH, K.A. NELSON, and P.P. MOTAVALLI, “CORN YIELD RESPONSE TO POLYMER AND NON-COATED UREA PLACEMENT AND TIMINGS,” INTERNATIONAL JOURNAL OF PLANT PRODUCTION, vol. 7, no. 3, pp. 373–392, 2013, [Online]. Available: https://sid.ir/paper/314689/en

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