Effects of Zeolite on Physiological Characteristics and Grain Quality in Rice under Alternate Wetting and Drying Irrigation

Background: Zeolite (Z) is gradually used in rice production due to its holding ability for water and nutrients, but limited information is available on how its physiological function affects rice grain yield and quality under water stress. Methods: This study aimed to investigate the effect of Z ap...

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Bibliographic Details
Published in:Water (Basel) 2023-07, Vol.15 (13), p.2406
Main Authors: Sun, Yidi, Xie, Jigan, Hou, Huijing, Li, Min, Wang, Yitong, Wang, Xuetao
Format: Article
Language:English
Subjects:
Accumulation
Agricultural production
Analysis
Aquatic resources
Bleeding
Breakdown
China
Crop production
Crop yield
Crop yields
Drought
Dry matter
Drying
Experiments
Fertilizers
Floods
Irrigation
Japan
Leaves
Nitrogen
Nutrient content
Nutrients
Physicists
Physiological aspects
Physiological effects
Physiology
Rice
Soil sciences
Water quality
Water stress
Water use
Water use efficiency
Wetting
Zeolites
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Summary:Background: Zeolite (Z) is gradually used in rice production due to its holding ability for water and nutrients, but limited information is available on how its physiological function affects rice grain yield and quality under water stress. Methods: This study aimed to investigate the effect of Z application on rice physiological characteristics, dry matter and nitrogen accumulation, grain yield and quality under continuous flooding (CF) and alternate wetting and drying irrigation (AWD). Results: The results showed that, compared with CF, AWD reduced leaf SPAD, root bleeding intensity, aboveground dry matter and nitrogen accumulation, resulted in lower grain yield without Z application, but improved root–shoot ratio and root N accumulation. Z application increased dry matter and N accumulation, and subsequent grain yield by improving leaf SPAD and root bleeding intensity. Both AWD and Z application improved water use efficiency. AWD reduced head rice rate, chalky rice rate and chalkiness, but improved the taste value by increasing the breakdown and reducing the setback. Z application improved protein content, reduced breakdown and setback, but increased chalky rice rate and chalkiness. Conclusions: These results indicated that AWD and Z application could achieve several benefits including improved grain yield, grain quality and water use efficiency.
ISSN:2073-4441
2073-4441
DOI:10.3390/w15132406