Impacts of controlled irrigation and drainage on the yield and physiological attributes of rice

Shao, Guangcheng; Cui, Jintao; Yu, Shu; Lu, Bin; Brian, Boman J.; Ding, Jihui; She, Dongli

doi:10.1016/j.agwat.2014.11.002

Cited by 53 publications

(33 citation statements)

References 33 publications

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“…Similar results were found in the Taihu region of China by Wei et al [34] and Shao et al [7]. The inability of roots to acclimatize to the changes of water condition under water-saving irrigation influences rice growth, and thereby dry matter production [7]. The WSI treatments increased the root dry matter weight but decreased the stem dry matter weight as compared with FI, in this study.…”

Section: Discussionsupporting

confidence: 89%

“…In this study, WSI inhibited the increase of rice plant height to some extent and the greater the degree of drought, the more obvious the inhibition was. Similar results were found in the Taihu region of China by Wei et al [34] and Shao et al [7]. The inability of roots to acclimatize to the changes of water condition under water-saving irrigation influences rice growth, and thereby dry matter production [7].…”

Section: Discussionsupporting

confidence: 73%

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Agronomic Growth Performance of Super Rice under Water-Saving Irrigation Methods with Different Water-Controlled Thresholds in Different Growth Stages

et al. 2020

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Many water-saving techniques have been developed for rice production in response to irrigation water scarcity. The selection of the water-saving methods and the optimum thresholds for obtaining maximum benefits of these regimes are largely site-specific depending mainly on soil type, soil texture, and the environment. A two-year (2017 and 2018) experiment was conducted to evaluate the response of the agronomic growth performance, yield, and water use of super rice varieties under different irrigation regimes in Jiangsu Province, China. The irrigation regimes were comprised of different water-controlled thresholds, in different growth stages. Treatments included traditional flooding irrigation (FI, as the control) and the following four water-saving irrigation (WSI) regimes: shallow adjusting irrigation (WSI1), rainwater-catching and controlled irrigation (WSI2), controlled irrigation (WSI3), and drought planting with straw mulching (WSI4). The results showed that WSI treatments significantly increased the irrigation water use efficiency by 20.60% to 56.92% as compared with FI. The WSI treatments significantly decreased the crop evapotranspiration during the rice growth period. The grain yields of WSI1, WSI2, and WSI3 were significantly increased (6.62%~7.20% for WSI1, 8.21%~12.39% for WSI2, and 8.30%~12.91% for WSI3) as compared with that of the control, whereas WSI4 decreased the rice yield by 11.69%~18.10%. This research implies that WSI2 and WSI3 have the greatest potential for promotion in the lower reaches of the Yangtze River. An optimization of the irrigation threshold of WSI1 and WSI4 should be considered to guarantee the overall benefit.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 73%

Agronomic Growth Performance of Super Rice under Water-Saving Irrigation Methods with Different Water-Controlled Thresholds in Different Growth Stages

et al. 2020

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“…Jiangsu Province is a typical area of rice cultivation in the lower reaches of the Yangtze River. Rain-catching and controlled irrigation (RC-CI) [37], also called controlled irrigation and drainage [10,30], is a widely-used water-saving irrigation that increases water storage depth after rainfall based on controlled irrigation (CI) in Jiangsu Province. Drought planting with straw mulching (DP-SM), a water-saving irrigation regime of aerobic rice with straw return, hasn't been well tested and popularized in Jiangsu.…”

Section: Introductionmentioning

confidence: 99%

Response of Vertical Migration and Leaching of Nitrogen in Percolation Water of Paddy Fields under Water-Saving Irrigation and Straw Return Conditions

Zheng

Zhang

et al. 2019

Water

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The use of water-saving irrigation techniques has been encouraged in rice fields in response to irrigation water scarcity. Straw return is an important means of straw reuse. However, the environmental impact of this technology, e.g., nitrogen leaching loss, must be further explored. A two-year (2017–2018) experiment was conducted to investigate the vertical migration and leaching of nitrogen in paddy fields under water-saving and straw return conditions. Treatments included traditional flood irrigation (FI) and two water-saving irrigation regimes: rain-catching and controlled irrigation (RC-CI) and drought planting with straw mulching (DP-SM). RC-CI and DP-SM both significantly decreased the irrigation input compared with FI. RC-CI increased the rice yield by 8.23%~12.26%, while DP-SM decreased it by 8.98%~15.24% compared with FI. NH4+-N was the main form of the nitrogen leaching loss in percolation water, occupying 49.06%~50.97% of TN leaching losses. The NH4+-N and TN concentration showed a decreasing trend from top to bottom in soil water of 0~54 cm depth, while the concentration of NO3−-N presented the opposite behavior. The TN and NH4+-N concentrations in percolation water of RC-CI during most of the rice growth stage were the highest among treatments in both years, and DP-SM showed a trend of decreasing TN and NH4+-N concentrations. The NO3−-N concentrations in percolation water showed a regular pattern of DP-SM > RC-CI > FI during most of the rice growth stage. RC-CI and DP-SM remarkably reduced the amount of N leaching losses compared to FI as a result of the significant decrease of percolation water volumes. The tillering and jointing-booting stages were the two critical periods of N leaching (accounted for 74.85%~86.26% of N leaching losses). Great promotion potential of RC-CI and DP-SM exists in the lower reaches of the Yangtze River, China, and DP-SM needs to be further optimized.

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“…Plant height comprised another morphological characteristic that enabled the plants to adapt to hydrological changes. Internode length extensions and biomass allocation to the aboveground parts were typically increased in flooded conditions (Shao et al ). In this study, the flooding treatment significantly increased plant height compared with other treatments; however, biomass was not positively correlated with height.…”

Section: Discussionmentioning

confidence: 99%

Effects of alternate flooding–drought conditions on degenerated Phragmites australis salt marsh in Northeast China

Wen

Yang

et al. 2017

Restoration Ecology

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The hydrological regime is the dominant factor associated with the degradation and restoration of inland salt marshes in Northeast China. This study investigates whether alternate flooding–drought conditions could be used to actively restore degraded inland salt marshes with the native plant Phragmites australis. Pot experiments were designed to examine changes in the growth and physiology of P. australis, as well as the saline–alkaline soil characteristics, in response to different hydrological regimes, alternate flooding–drought treatments, and single treatments of moisture, flooding, and drought. After 4 months of treatments, the P. australis population that grew in alternate flooding–drought conditions exhibited substantially more biomass accumulation and less Na+ absorption compared with the single treatments of moisture, flooding, and drought. Photosynthesis physiology served as regulating and adaptive responses to different water regimes, with increased values after the short‐term flooding, long‐term drought, and flooding–drought cycles. In addition, the saline–alkaline soil properties changed in response to the flooding–drought cycles. The flooding–drought cycles increased organic matter and total nitrogen contents, but decreased pH, electrical conductivity, and saline ion levels. Plant growth and saline–alkaline soil were improved by flooding–drought cycles (not drought–flooding cycles), which suggests that this may be an effective approach for restoration inland salt marshes.

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Impacts of controlled irrigation and drainage on the yield and physiological attributes of rice

Cited by 53 publications

References 33 publications

Agronomic Growth Performance of Super Rice under Water-Saving Irrigation Methods with Different Water-Controlled Thresholds in Different Growth Stages

Agronomic Growth Performance of Super Rice under Water-Saving Irrigation Methods with Different Water-Controlled Thresholds in Different Growth Stages

Response of Vertical Migration and Leaching of Nitrogen in Percolation Water of Paddy Fields under Water-Saving Irrigation and Straw Return Conditions

Effects of alternate flooding–drought conditions on degenerated Phragmites australis salt marsh in Northeast China

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