Main content

Opportunities for the Inclusion of Cover Crops in the Corn-Soybean Rotation in Ontario

Show full item record

Title: Opportunities for the Inclusion of Cover Crops in the Corn-Soybean Rotation in Ontario
Author: Clark, Jaclyn Cassandra
Department: Department of Plant Agriculture
Program: Plant Agriculture
Advisor: Deen, BillHooker, Dave
Abstract: Integration of cover crops in corn (Zea mays L.)-soybean (Glycine max Merr.) rotations may reduce negative impacts on crop yield, soil health, and the environment. Two experiments investigated cover crops in corn-soybean based rotations. Lolium multiflorum (annual ryegrass, AR) and Trifolium pretense (red clover, RC) were planted or broadcast into V5 corn harvested for grain or silage. Cover crop biomass in the spring ranged from 0 to 1.63 Mg ha-1. Grain corn yields were unaffected by cover crops. In the second experiment, three rotations were established: 1) continuous soybean, 2) corn-soybean, and 3) continuous soybean with broadcast or drilled AR or Secale cereale (cereal rye, CR). Cover crop biomass measured late fall was consistently low (<0.50 Mg ha-1). Spring cover crop biomass ranged from 0-1.77 Mg ha-1. Overall, AR, RC, or CR can be used as cover crops in corn-soybean rotations, however variability in biomass accumulation may limit benefits.
URI: http://hdl.handle.net/10214/12553
Date: 2018-02


Files in this item

Files Size Format View Description
Clark_Jaclyn_201802_MSc.pdf 5.436Mb PDF View/Open Thesis

This item appears in the following Collection(s)

Show full item record