Work

Sulfur-coated Urea as a Slow-release Nitrogen Source for Onions

Year: 1988

Type: article

Abstract: Field studies with onions ( Allium cepa L. cv Monarch) were conducted in 1980 and 1981 to compare preplant-banded sulfur-coated urea (SCU) with preplant-banded and split applications of urea. Treatments were evaluated at two N rates, 56 and 224 kg·ha −1 . Root NO 3 -N and soil NO 3 -N concentrations in bed centers indicated slower release of N from SCU than from urea. Nevertheless, total and large bulb (> 76 mm in diameter) yields and N uptake in onion bulbs and leaves from SCU were significantly higher under low-N conditions than with preplant urea, but did not differ significantly from split urea treatments.

Source: Journal of the American Society for Horticultural Science

DOI: 10.21273/jashs.113.6.864

Authors: Bradford D. Brown, Albert J. Hornbacher, Denny V. Naylor

Institution: University of Idaho

Language: English

Topic: Polymer-Based Agricultural Enhancements

Subfield: Agronomy and Crop Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: hybrid

Estimated APC paid: $3,500