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2. Management effects on epigeal arthropods and soil-dwelling communities during the transition to organic agriculture

open_access
Open Access
Author:
Jabbour, Randa
Title:
Management effects on epigeal arthropods and soil-dwelling communities during the transition to organic agriculture
Graduate Program:
Ecology
Keywords:
cover cropping
tillage
organic agriculture
entomopathogenic fungi
entomopathogenic nematodes
refuges
habitat complexity
dispersal
soil ecology
File:
Download dissertation_revised.pdf
Committee Members:
Mary Ellen Barbercheck, Dissertation Advisor/Co-Advisor
Mary Ellen Barbercheck, Committee Chair/Co-Chair
Shelby Jay Fleischer, Committee Member
Nancy M Ostiguy, Committee Member
Katriona Shea, Committee Member

4. Arthropod Response to Cover Crop-Based Reduced-Tillage Organic Cropping Systems

open_access
Open Access
Author:
Regan, Karly
Title:
Arthropod Response to Cover Crop-Based Reduced-Tillage Organic Cropping Systems
Graduate Program:
Entomology
Keywords:
agroecology
biological control
cover crops
tillage
organic agriculture
arthropod community composition
conservation biological control
pest management
Carabidae
Araneae
Opiliones
Staphylinidae
Delia
Lepidoptera
interseeding
intercropping
File:
Download Regan_Dissertation_final.pdf
Committee Members:
Mary Ellen Barbercheck, Dissertation Advisor/Co-Advisor
Mary Ellen Barbercheck, Committee Chair/Co-Chair
John Frazier Tooker, Committee Member
Kelli Hoover, Committee Member
Armen R. Kemanian, Outside Member
William Curran, Outside Member

5. Smart Tillage and the Regulation of Nitrous Oxide Emission in Organic Agriculture

open_access
Open Access
Author:
Koehle, Allison
Title:
Smart Tillage and the Regulation of Nitrous Oxide Emission in Organic Agriculture
Graduate Program:
Agricultural and Environmental Plant Science (MS)
Keywords:
nitrous oxide
cover crop
manure
organic agriculture
denitrification
tillage
File:
Download AlliKoehle_AEPSMastersThesis_-_Final.pdf
Committee Members:
Erin Connolly, Program Head/Chair
Armen R. Kemanian, Thesis Advisor/Co-Advisor
Jason Philip Kaye, Committee Member
Liana T Burghardt, Committee Member

6. Soil management changes biological control and plant resistance to insect herbivores

open_access
Open Access
Author:
Rowen, Elizabeth
Title:
Soil management changes biological control and plant resistance to insect herbivores
Graduate Program:
Entomology
Keywords:
Plant-insect interactions
fertilizer
manure
tillage
File:
Download Rowen_-_PSU_Dissertation-revisions.pdf
Committee Members:
John Frazier Tooker, Dissertation Advisor/Co-Advisor
John Frazier Tooker, Committee Chair/Co-Chair
Mary Ellen Barbercheck, Committee Member
Jared Gregory Ali, Committee Member
Armen R. Kemanian, Outside Member
Maryann Victoria Bruns, Outside Member
Gary Felton, Program Head/Chair

7. Toward Understanding the Impact of Management Practices on Soil Microbial Nitrogen Dynamics in Agroecosystems

open_access
Open Access
Author:
Cloutier, Mara
Title:
Toward Understanding the Impact of Management Practices on Soil Microbial Nitrogen Dynamics in Agroecosystems
Graduate Program:
Soil Science (PHD)
Keywords:
microbial ecology
denitrification
tillage
residue management
soil health
conservation management
microbiomes
nitrogen cycle
denitrifier
rhizosphere
File:
Download Cloutier-Dissertation-Draft4-cleaned.pdf
Committee Members:
John Watson, Major Field Member
Jay Regan, Outside Field Member & Dissertation Advisor
Terrence Bell, Outside Unit Member
Mary Ann Bruns, Chair & Dissertation Advisor
Bradley Cardinale, Program Head/Chair