Farm

Southeast Research and Demonstration Farm

Extension Number

RFR A1081

Publication Date

2011

Abstract

A study was initiated in 1994 to evaluate longterm effects of phosphorus (P) and potassium (K) fertilizer rates and placement methods on yield of corn and soybean managed with notill or chisel-plow tillage. No-till management results in little or no incorporation of residue and fertilizer with soil. Therefore, broadcast fertilization could be inefficient with no-till because both nutrients accumulate near the soil surface. In this case, subsurface banding of P and K fertilizers could be more effective.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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