Production traits of garden mums subjected to various substrate water contents at a commercial production farm

Yong Ha Rhie, Seonghwan Kang, Dong Chan Kim, Jongyun Kim

Research output: Contribution to journalArticle

Abstract

Improving water use and nutrient efficiency can play a pivotal role in ensuring sustainable production of horticultural crops. This study aimed to investigate the optimum moisture level that best management practices need to ensure for high-quality garden mum production, and also determine the feasibility of using a soil moisture sensor-based automated fertigation system for water and nutrient management for high-quality garden mum production. We used 20 5TE (Decagon Devices, Pullman, WA, USA) sensors to monitor and control fertigation based either on the substrate volumetric water content (θ, v/v) at 0.25, 0.35, 0.45, and 0.55 m3·m−3, or conventional greenhouse management culture practices. At harvest, most vegetative growth parameters were not significantly different across the treatments, but the leaf relative water content of plants under the 0.25 m3·m−3 treatment was lower than that of plants under other treatments, indicating that the plants were drought stressed. Although flower diameters and peduncle lengths were similar across the treatments, the number of flowers of plants under the 0.25 and 0.35 m3·m−3 treatments were 25–37% less compared to that of plants under the 0.45 and 0.55 m3·m−3 treatments, and the conventional culture practice, which suggested decreased quality of garden mums under water stress. Water savings without a decrease in product quality by adopting the automated fertigation system with the threshold θ values of 0.45 and 0.55 m3·m−3 were 34.2% and 42.7% of the conventional cultural practice, respectively. The soil moisture sensor-based automated fertigation system can therefore save a considerable amount of water and fertilizer and ensure efficient water and nutrient management for practical production of high-quality garden mums.

Original languageEnglish
Pages (from-to)389-394
Number of pages6
JournalHorticulture Journal
Volume87
Issue number3
DOIs
Publication statusPublished - 2018 Jan 1

Fingerprint

fertigation
gardens
water content
farms
sensors (equipment)
Chrysanthemum morifolium
nutrient management
water management
soil water
flowers
best management practices
water
horticultural crops
peduncle
plant cultural practices
product quality
vegetative growth
water stress
drought
fertilizers

Keywords

  • Automated irrigation system
  • Capacitance sensor
  • Run-off
  • Soil moisture sensor
  • Water use efficiency

ASJC Scopus subject areas

  • Plant Science
  • Horticulture

Cite this

Production traits of garden mums subjected to various substrate water contents at a commercial production farm. / Rhie, Yong Ha; Kang, Seonghwan; Kim, Dong Chan; Kim, Jongyun.

In: Horticulture Journal, Vol. 87, No. 3, 01.01.2018, p. 389-394.

Research output: Contribution to journalArticle

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