Graduate Thesis Or Dissertation
 

Nitrogen accumulation during the growing season by russett Burbank potatoes (Solanum tuberosum)

Public Deposited

Downloadable Content

Download PDF
Request Accessible Version
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/fj236617m

Descriptions

Attribute NameValues
Creator
Abstract
  • Nitrogen is one of the most important nutrients influencing potato yields. The potential for environmental pollution from N is also greater than for other nutrients added as fertilizer because excessive amounts applied are subject to leaching into drainage water. The purpose of this study was to improve N fertilizer recommendations by measuring N taken up and accumulated in Russet Burbank potato plants during the growing season with various rates of N application. The field experiments were conducted in three different geographic locations of Oregon that differ markedly in soil, temperature and length of growing season. Nitrogen uptake and accumulation by whole plants (tops + tubers) was measured when the tubers were 0.75-1.0 inch in diameter and again when the larger tubers were 2.0-2.5 inches long. Nitrogen removed by the tubers at harvest time was also measured. Amounts of N required to produce the highest total yield and yield of U.S. No. 1 tubers was determined for each location with the field experiments established. At each location, the amount of N that was removed by the tubers at harvest-time was taken up by the plants before the larger size tubers were 2.0-2.5 inches long. This occurred within 97, 69 and 64 days after planting at the Hermiston, Madras and Klamath Falls locations, respectively. Optimum yield and grade were obtained with 100, 80 and 160 lbs. N/A treatment at the Hermiston, Madras and Klamath Falls locations, respectively. Difference in amounts of N required for optimum yield is a reflection of the length of growing season, N carry over from the previous crop and environmental conditions during the growing season. This study suggests that most of the N fertilizer should be applied before the larger tubers reach about two inches in diameter and that N taken up and accumulated in the plant tops is translocated to the tubers as the crop matures.
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 Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Accessibility Feature

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details KanjiBadrudinJ1974.pdf 2017-08-23 Public Download