Armstrong Memorial Research and Demonstration Farm

Broadcast and Band Phosphorus and Potassium Placement for Corn and Soybean Managed with Till or No Till

Authors: Antonio P. Mallarino (Iowa State University) , Kirk Schwarte (Iowa State University) , Bernard J. Havlovic (Iowa State University)

  • Broadcast and Band Phosphorus and Potassium Placement for Corn and Soybean Managed with Till or No Till

    Armstrong Memorial Research and Demonstration Farm

    Broadcast and Band Phosphorus and Potassium Placement for Corn and Soybean Managed with Till or No Till

    Authors: , ,

Abstract

No-till minimizes the incorporation of crop residue and fertilizer with soil; resulting in wetter, colder soils and the accumulation of organic matter, phosphorus (P), and potassium (K) near the soil surface. Banding of P and Kcould be more effective than broadcast fertilization by counteracting stratification, applying nutrients in the root zone (starter effect), and minimizing reactions with the soil that may reduce their availability to plants. Therefore, a long-term study was established in 1994 to evaluate P and K fertilizer rates and placement methods for grain yield of corn and soybean managed with no-till and chiselplow/disk tillage.

Keywords: RFR A1197, Agronomy

How to Cite:

Mallarino, A. P., Schwarte, K. & Havlovic, B. J., (2012) “Broadcast and Band Phosphorus and Potassium Placement for Corn and Soybean Managed with Till or No Till”, Iowa State University Research and Demonstration Farms Progress Reports 2011(1).

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Published on
01 Jan 2012
Peer Reviewed