Northwest and Allee Research and Demonstration Farms

Phosphorus and Potassium Rates and Placement Methods for Corn and Soybean Managed with No-till or Tillage

Authors: Antonio P. Mallarino (Iowa State University) , Ryan Rusk (Iowa State University)

  • Phosphorus and Potassium Rates and Placement Methods for Corn and Soybean Managed with No-till or Tillage

    Northwest and Allee Research and Demonstration Farms

    Phosphorus and Potassium Rates and Placement Methods for Corn and Soybean Managed with No-till or Tillage

    Authors: ,

Abstract

No-till management for corn and soybean results in little or no incorporation of crop residues and fertilizer with soil. Subsurface banding phosphorus (P) and potassium (K) fertilizers with planter attachments could be more effective than broadcast fertilization, because in no-till with broadcast fertilizer, both nutrients accumulate at or near the soil surface. A long-term study was initiated in 1994 at the ISU Northwest Research Farm to evaluate P and K fertilizer placement for corn and soybean managed with no-till and chiselplow tillage.

Keywords: RFR A1156, Agronomy

How to Cite:

Mallarino, A. P. & Rusk, R., (2012) “Phosphorus and Potassium Rates and Placement Methods for Corn and Soybean Managed with No-till or Tillage”, Iowa State University Research and Demonstration Farms Progress Reports 2011(1).

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Published on
01 Jan 2012
Peer Reviewed