Phosphorus and Potassium Fertilizer Placement for Corn and Soybeans Managed with No-Till and Chisel-Disk Tillage
- Antonio P. Mallarino (Iowa State University)
- Bernard J. Havlovic (Iowa State University)
- Jeff Butler (Iowa State University)
Abstract
A long-term study was initiated in 1994 to evaluate phosphorus (P) and potassium (K) fertilizer rates and placement methods for corn and soybeans managed with no-till and chisel-plow tillage. No-till management resulted in little or no incorporation of residue and fertilizer into the soil. Broadcast fertilization has generally been inefficient with no-till because both nutrients accumulate near the soil surface. Subsurface banding of P and K fertilizers, however, can be more effective.
Keywords: Agronomy
How to Cite:
Mallarino, A. P., Havlovic, B. J. & Butler, J., (2006) “Phosphorus and Potassium Fertilizer Placement for Corn and Soybeans Managed with No-Till and Chisel-Disk Tillage”, Iowa State University Research and Demonstration Farms Progress Reports 2005(1).
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