Rice Husks and Leaf Mold Used as Peat Substitutes to Improve the Morphological, Photosynthetic, and Biochemical Properties of Chrysanthemum (Chrysanthemum × morifolium)
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Published:2023-11-21
Issue:23
Volume:15
Page:16137
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ISSN:2071-1050
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Container-title:Sustainability
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language:en
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Short-container-title:Sustainability
Author:
Liu Shuguang1, Liu Mingyu1, Chen Shengyan1, Ni Xingyu1, Zhang Kaiyuan1, Yue Liran1, Zhou Yunwei2
Affiliation:
1. College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China 2. College of Horticulture, Jilin Agricultural University, Changchun 130118, China
Abstract
Chrysanthemums (Chrysanthemum × morifolium) are highly valued for their ornamental and economic benefits. However, the commonly used growing medium for chrysanthemums, peat, is not renewable, and peatlands are facing depletion. Therefore, it is important to find sustainable alternatives to peat. This study aims to evaluate the potential of rice husks and leaf mold mixed with peat and perlite in different ratios (10–20–30–40–80% v/v/v/v) as substitute materials for peat in chrysanthemum production. The study examines the physical and chemical properties of the different growing media ratios, as well as their effects on plant growth, development, and physiological indicators. The results of the experiment demonstrate that the different ratios of the cultivation substrate significantly influence the physical and chemical properties of the growing medium, as well as the growth and physiological indicators of chrysanthemums. A 20–30% proportion of rice husks and leaf mold promotes the growth and photosynthetic activity of chrysanthemum cuttings, resulting in increased plant height, leaf area, total chlorophyll content, and net photosynthetic rate. The mixed substrates (10–40%) maintain suitable pH levels, electrical conductivity (EC), and nutrient content (nitrogen, phosphorus, and potassium). However, an 80% ratio of rice husks negatively affects plant survival and growth due to elevated EC and potassium levels. In conclusion, a peat medium containing 20% rice husks and leaf mold provides a more favorable cultivation substrate for producing high-quality chrysanthemums while promoting sustainable horticultural practices.
Funder
National Key Research and Development Program of China
Subject
Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction
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