Abstract/Details

Integration of potato production, dairy forage and manure management systems: Nitrogen dynamics and agronomic implications


2005 2005

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Abstract (summary)

The integration of potato and livestock agronomic operations has been proposed as a means by which to improve overall system productivity and long-term sustainability. Two-year potato (Solanum tuberosum L.) rotations with alfalfa (Medicago sativa L.) and sorghum-sudangrass (Sorghum bicolor L. x S. bicolor L.) and 3-year potato rotations with 2-year stands of alfalfa and festulolium ( Festuca pratensis Huds. x Lolium perenne L.) were compared to the regionally prevalent 2-year corn (Zea mays L.) - potato rotation. Liquid dairy manure was applied at 12,260 L ha -1 and evaluated against equivalent mineral fertilizer applications balanced on available nitrogen. Forage crop rotation and manure application increased soil N levels and potato petiole N throughout the growing season in 2003 and 2004. Crop rotation was a more determining factor of N levels in potato systems than manure application. Manure was more effective at increasing potato yield than crop rotations alone; the synergistic effect of manure amendment and crop rotation produced more significant increases in potato yields than either treatment alone. C4 grasses corn and sudex increased potato yield more than C3 grass festulolium or legume alfalfa. Manure application did not affect tuber scab disease in 2002 or 2003, but did increase scab in 2004. Festulolium yields increased with manure application in 2003, but not in 2004. Additions of high quality forage rotations and manure amendment can improve N synchrony with potato N demand resulting in increased potato yields.

Indexing (details)


Subject
Agronomy
Classification
0285: Agronomy
Identifier / keyword
Biological sciences
Title
Integration of potato production, dairy forage and manure management systems: Nitrogen dynamics and agronomic implications
Author
Boring, Timothy John
Number of pages
186
Publication year
2005
Degree date
2005
School code
0128
Source
MAI 44/04M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780542527074, 0542527073
Advisor
Leep, Richard H.
University/institution
Michigan State University
University location
United States -- Michigan
Degree
M.S.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
1432172
ProQuest document ID
305456924
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305456924
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