Yield Response of Intensively Managed Corn and Soybean to Potassium Fertilizer Rate and Placement

IPNI-2001-CAN-ON24

The goal of this project is to examine the variation across a field landscape in corn and soybean yield response to input intensity. Read more


Year of initiation:2001
Year of completion:2007
Map:

Interpretive Summary

Yield Response of Intensively Managed Corn and Soybean to Potassium Fertilizer Rate and Placement, 2007 The goal of this project was to examine the variation in corn and soybean yield response to varied input intensity applied across a field landscape. The objectives were to identify parts of the landscape that are most responsive to increased input levels, and to determine the particular constraints to crop growth at these locations during various stages of crop development.

Yield Response of Intensively Managed Corn and Soybean to Potassium Fertilizer Rate and Placement, 2006 The goal of this project is to examine the variation in corn and soybean yield response to varied input intensity applied across a field landscape. The objectives are to identify parts of the landscape that are most responsive to increased input levels, and to determine the particular constraints to crop growth at these locations during various stages of crop development.

Yield Response of Intensively Managed Corn and Soybean to Potassium Fertilizer Rate and Placement The goal of this project is to examine the variation in corn and soybean yield response to varied input intensity applied across a field landscape. The objectives are to identify parts of the landscape that are most responsive to increased input levels, and to determine the particular constraints to crop growth at these locations during various stages of crop development.

Yield Response of Intensively Managed Corn and Soybean to Potassium Fertilizer Rate and Placement, 2004. The goal of this project is to examine the variation across a field landscape in corn and soybean yield response to input intensity. The objectives are to identify parts of the landscape most responsive to increased input levels, and to determine the particular constraints to crop growth at these locations during various stages of crop development. Seven strips of high-input treatments.

Spatial/Temporal Yield Response of Intensively Managed Corn and Soybean to Variations in Potassium Fertilizer Rate and Placement, 2003. Intensive management aims to narrow the gap between potential and current yields of corn and soybeans. The goal of this project is to examine the variation across a field landscape in corn and soybean yield response to input intensity.

Spatial/temporal Yield Response of Intensively Managed Corn and Soybean to Variations in Potassium Fertilizer Rate and Placement, 2002 Intensive management aims to narrow the gap between potential and current yields of corn and soybeans. The goal of this project is to examine the variation across a field landscape in corn and soybean yield response to input intensity.

Spatial/Temporal Yield Response of Intensively Managed Corn and Soybean to Variations in Potassium Fertilizer Rate and Placement, 2001 Intensive management is designed to narrow the gap between potential and current yields of corn and soybeans. This can also be termed “ecological intensification”, aiming to increase yields and input use efficiency simultaneously.

Role of Potassium Fertility in Reducing Soybean Stresses Associated with Early Planting, Disease, No-till, and High Yield Environments, 2000 The increasing acreage of the soybean crop in Ontario is driving many growers to shorter rotations with less tillage. In addition, growers are interested in exploiting the yield advantage of early planting. Fertility needs may differ under these circumstances.

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Updates & Reports

2004

Published reports related to the research

2007

2007 Annual Report

2001

Project Description

2001

Investigators

2001

Objectives


Project Leader

Bill Deen, University of Guelph


Project Cooperators

John Lauzon
Greg Stewart


IPNI Staff

T. Bruulsema


Location

Americas \ Northern America \ CAN \ Ontario


Topics

4r place, 4r rate, 4r source, soil fertility and productivity

maize, soybean

Nitrogen (N), Phosphorus (P), Potassium (K)