Graduate Thesis Or Dissertation
 

Sweet corn (Zea mays) production in a white clover (Trifolium repens) living mulch : the second year

Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/tq57nv138

Descriptions

Attribute NameValues
Creator
Abstract
  • Soil-related problems common to Oregon farmers are erosion, compaction, organic matter depletion, and nutrient loss. High costs of fertilizer, fuel, and weed control are additional management problems. Growing a secondary crop as a living mulch with a primary crop may ease some of these problems. Sweet corn production in Oregon is commonly plagued by these problems and may be suitable for a living mulch system. Field experiments were begun to test the feasibility of growing sweet corn (Zea mays L. 'Jubilee') and white clover (Trifolium repens L. 'New Zealand') living mulch in the Willamette Valley in Oregon. Research was done at the Oregon State University Hyslop and Horticulture research farms near Corvallis. Management practices tested were fall-planted clover (1982) compared to spring-planted clover (1983), and clover suppression treatments in 1984. Suppression treatments were 0.84 and 1.4 kg ai/ha atrazine (6-chloroN- ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine), and mowing. Corn yields were not reduced when clover was planted in the fall and suppressed with atrazine at 1.4 kg ai/ha. When clover suppression treatments were mowing or 0.84 kg ai/ha of atrazine, corn yields were reduced. At the Horticulture farm, an additional screening trial was conducted to determine the effect of selected herbicides on second-year white clover. Results indicated that the dimethylamine 2,4-D ((2,4- dichlorophenoxy) acetic acid) applied at 2.24 kg ae/ha gave excellent initial and residual suppression of the clover (95% at 14 days after treatment and 82.5% at 67 days after treatment). A mixture of atrazine plus alachlor (2-chloro-N-(2,6-diethylphenyl-N- (methoxymethyl)acetamide) applied at 1.4 and 3.36 kg ai/ha, respectively, effectively suppressed the clover (80%), but was only slightly more severe than atrazine at 1.4 kg ai/ha.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details PetermanMarkK1986.pdf 2017-08-16 Public Download