Foliar fertilization–induced injury and recovery of a creeping bentgrass putting green

Qing Zhu, Maxim J. Schlossberg, Ray B. Bryant

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Two independent trials were conducted on a creeping bentgrass (Agrostis stolonifera L.) putting green (PG) to evaluate early-response of canopy quality, growth, and nutrient use to rate and/or type of foliarly-applied nitrogen (N) fertilizer. Treatments were prepared using soluble ‘Amine’ or ‘Salt’ 15N–0 phosphorus (P)–5.8potassium (K) fertilizer and applied N at 0, 24.5, 37, or 49 kg ha−1. Clipping yields were weighed and digested for N content. Normalized differential vegetative (NDVI) and dark green color (DGCI) indices were determined by canopy reflectance. Relative to the Salt fertilizer, the Amine supported greater mean growth and N offtake rates and higher mean NDVI and DGCI. Two and five days after treatment (DAT), salt-fertilizer treated plots showed lesser canopy quality relative to Amine. These differences increased with N rate, likely due to the greater solute concentration of the Salt fertilizer. Eight to 21 DAT, fewer differences were observed by fertilizer type or rate.

Original languageEnglish (US)
Pages (from-to)1589-1596
Number of pages8
JournalJournal of Plant Nutrition
Volume39
Issue number11
DOIs
StatePublished - Sep 18 2016

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Agrostis
Agrostis stolonifera
Fertilizers
fertilizers
amines
Wounds and Injuries
Salts
Amines
canopy
salts
nitrogen fertilizers
salt concentration
reflectance
solutes
Growth
Phosphorus
Nitrogen
phosphorus
Color
color

All Science Journal Classification (ASJC) codes

  • Physiology
  • Agronomy and Crop Science

Cite this

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abstract = "Two independent trials were conducted on a creeping bentgrass (Agrostis stolonifera L.) putting green (PG) to evaluate early-response of canopy quality, growth, and nutrient use to rate and/or type of foliarly-applied nitrogen (N) fertilizer. Treatments were prepared using soluble ‘Amine’ or ‘Salt’ 15N–0 phosphorus (P)–5.8potassium (K) fertilizer and applied N at 0, 24.5, 37, or 49 kg ha−1. Clipping yields were weighed and digested for N content. Normalized differential vegetative (NDVI) and dark green color (DGCI) indices were determined by canopy reflectance. Relative to the Salt fertilizer, the Amine supported greater mean growth and N offtake rates and higher mean NDVI and DGCI. Two and five days after treatment (DAT), salt-fertilizer treated plots showed lesser canopy quality relative to Amine. These differences increased with N rate, likely due to the greater solute concentration of the Salt fertilizer. Eight to 21 DAT, fewer differences were observed by fertilizer type or rate.",
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Foliar fertilization–induced injury and recovery of a creeping bentgrass putting green. / Zhu, Qing; Schlossberg, Maxim J.; Bryant, Ray B.

In: Journal of Plant Nutrition, Vol. 39, No. 11, 18.09.2016, p. 1589-1596.

Research output: Contribution to journalArticle

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