Affiliation:
1. College of Hydraulic Science and Engineering Yangzhou University Yangzhou China
2. State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology Chinese Academy of Sciences Nanjing China
Abstract
AbstractBACKGROUNDRice cultivation under film mulching with no flooding is widely used as an effective water‐saving technology. Different colors of film mulch have different effects on the soil hydrothermal environment and crop growth because of their different optical properties. However, the effects of different colors of film mulch on soil temperature and rice physiological growth are not clearly understood.RESULTSField experiments were conducted in 2019 and 2020 to investigate the effects of different color mulches on soil temperature and rice growth in a non‐flooded condition. Transparent film (TM), black film (BM), two‐color film (BWM, silver on the front and black on the back), and no film (NM) in a non‐flooded condition were designed. Soil temperature variation at different soil depths of 0–0.25 m and rice plant height, stem thickness, dry matter, yield and quality were monitored. The results showed that compared to no mulching, the mulching treatment effectively increased the average soil temperature during the whole rice growth stage with the soil temperature ranked TM > BM > BWM. Compared with NM, the BM and BWM treatments increased rice yield by 12.1–17.7% and 6.4–14.4% in 2019 and 2020, respectively. The BWM had 18.2% and 6.8% greater gel consistency than NM in 2019 and 2020, respectively.CONCLUSIONTransparent film should be applied with care because of the high soil temperature stress. Black film and two‐color film (silver on the front and black on the back) could be better option for rice yield, increasing and quality improving in a non‐flooded condition. © 2023 Society of Chemical Industry.
Funder
China Postdoctoral Science Foundation
National Key Research and Development Program of China
National Natural Science Foundation of China
Natural Science Foundation of Jiangsu Province
Subject
Nutrition and Dietetics,Agronomy and Crop Science,Food Science,Biotechnology
Cited by
1 articles.
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