[Effects of sulfur- and polymer-coated controlled release urea fertilizers on wheat yield and quality and fertilizer nitrogen use efficiency]

Ying Yong Sheng Tai Xue Bao. 2012 Jan;23(1):67-72.
[Article in Chinese]

Abstract

A field experiment was conducted to study the effects of sulfur- and polymer-coated controlled release urea fertilizers on wheat yield and its quality, plow layer soil inorganic nitrogen (N) contents, and fertilizer N use efficiency. Compared with traditional urea fertilizer, both sulfur- and polymer-coated controlled release urea fertilizers increased the grain yield by 10.4%-16.5%, and the grain protein and starch contents by 5.8%-18.9% and 0.3%-1.4%, respectively. The controlled release urea fertilizers could maintain the topsoil inorganic N contents to meet the N requirement for the wheat, especially during its late growth stage. In the meantime, the fertilizer N use efficiency was improved by 58.2%-101.2%. Polymer-coated urea produced better wheat yield and higher fertilizer N use efficiency, compared with sulfur-coated controlled release urea.

Publication types

  • English Abstract
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Agriculture / methods
  • Fertilizers*
  • Nitrogen / metabolism*
  • Polymers
  • Quality Control
  • Sulfur
  • Triticum / chemistry
  • Triticum / growth & development*
  • Urea / chemistry
  • Urea / pharmacology*

Substances

  • Fertilizers
  • Polymers
  • Sulfur
  • Urea
  • Nitrogen