Nitrogen fertilization effects on lesquerella production

John M. Nelson, John Earl Watson, David A. Dierig

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Progress has been made towards the commercialization of Lesquerella fendleri (Gray) Wats. as a fall-planted oilseed crop for the southwestern United States. Research to develop suitable cultural practices for commercial production of lesquerella has been underway since the late 1980s; however, information is limited on the plant's nitrogen (N) requirement. Field experiments were conducted during two growing seasons to determine the optimum amount and timing of N applications for lesquerella production. Yield results indicate that lesquerella grown on desert soils is strongly influenced by N fertilization. Nitrogen rates as high as 180 kg N ha-1 increased seed yield. Seed oil content decreased as the N rate was increased. The increase in seed yield at the higher N rates generally offsets the decrease in oil content, but oil yields appeared to be near maximum at 180 kg N ha-1. Split-applications of N in the Spring increased seed and oil yields in one of two seasons. Nitrogen had no influence on 1000-seed weight or lesquerolic acid content of the oil. No spring leaf blade total N level was identified as being related to maximum seed yield. A suggested N management program for lesquerella production is to apply a small portion of N at planting time and the major portion of N in several applications during the period from onset of bloom through full bloom (February-April).

Original languageEnglish (US)
Pages (from-to)163-170
Number of pages8
JournalIndustrial Crops and Products
Volume9
Issue number3
DOIs
StatePublished - Mar 1 1999

Fingerprint

Lesquerella
seed yield
lipid content
nitrogen
desert soils
oils
split application
Southwestern United States
oilseed crops
commercialization
plant cultural practices
seeds
seed oils
leaf blade
growing season
planting
acids

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

Nelson, John M. ; Watson, John Earl ; Dierig, David A. / Nitrogen fertilization effects on lesquerella production. In: Industrial Crops and Products. 1999 ; Vol. 9, No. 3. pp. 163-170.
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Nitrogen fertilization effects on lesquerella production. / Nelson, John M.; Watson, John Earl; Dierig, David A.

In: Industrial Crops and Products, Vol. 9, No. 3, 01.03.1999, p. 163-170.

Research output: Contribution to journalArticle

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