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Farm Progress Reports

Number

RFR-A1682

Farm

Northeast Research and Demonstration Farm

Department

Agronomy

Abstract

With no-tillage cropping systems there is little mixing of crop residue with soil, which results in wetter and colder soils in early spring, but better moisture control in summer. Also, with no-till, broadcast fertilization increases the concentration of phosphorus (P) and potassium (K) fertilizers only in the top 2 to 4 in. of soil. Banding of P or K fertilizers below the soil surface with the planter could increase nutrient uptake and yield. Therefore, a long-term study was established in 1994 at this farm to evaluate P and K fertilizer rates and placement methods effect on grain yield of corn and soybean managed with no-till or tillage.

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