Surface Broadcast and Incorporated Lime: Impact on Soil pH, Soil pH Distribution and Soybean Yield Response to Fertilizers

IPNI-1998-CAN-ON19

15 Mar 2001

Project Description


In recent years, the Ontario soybean crop has expanded to exceed the acreage of corn. Yet, compared to corn, far less research has been done on its phosphorus (P) and potassium (K) needs. Soybeans are more frequently planted with reduced or no tillage, and this raises further questions regarding optimum placement of P and K and its interaction with lime. The objective of this project is to determine the rate of reaction and depth of influence of lime in soil under reduced tillage systems, and to assess its effect on soybean yield response to applied nutrients.