scholarly journals Soil Water Extraction Patterns and Water Use Efficiency of Irrigated Sugarbeet under Full and Limited Irrigation in an Arid Climate

2019 ◽  
Vol 56 (3 & 4) ◽  
pp. 23-53
Author(s):  
Bradley King ◽  
David Tarkalson ◽  
Dave Bjorneberg
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
Water Use ◽  
Water Extraction ◽  
Arid Climate ◽  
Use Efficiency ◽  
Soil Water Extraction

scholarly journals Soil water extraction pattern and water use efficiency of spring canola under growth-stage-based irrigation management

2020 ◽  
Vol 239 ◽  
pp. 106232
Author(s):  
Krishna B. Katuwal ◽  
Youngkoo Cho ◽  
Sukhbir Singh ◽  
Sangamesh V. Angadi ◽  
Sultan Begna ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
Water Use ◽  
Growth Stage ◽  
Irrigation Management ◽  
Water Extraction ◽  
Spring Canola ◽  
Extraction Pattern ◽  
Use Efficiency ◽  
Soil Water Extraction

Effect of growth stage based irrigation on soil water extraction and water use efficiency of spring safflower cultivars

2016 ◽  
Vol 177 ◽  
pp. 432-439 ◽  
Author(s):  
Sukhbir Singh ◽  
Sangamesh V. Angadi ◽  
Kulbhushan K. Grover ◽  
Rolston St. Hilaire ◽  
Sultan Begna
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
Water Use ◽  
Growth Stage ◽  
Water Extraction ◽  
Use Efficiency ◽  
Soil Water Extraction

scholarly journals Yield, water use efficiency, and yield response factor in carrot crop under different irrigation depths

2016 ◽  
Vol 46 (7) ◽  
pp. 1145-1150 ◽  
Author(s):  
Daniel Fonseca de Carvalho ◽  
Dionizio Honório de Oliveira Neto ◽  
Luiz Fernando Felix ◽  
José Guilherme Marinho Guerra ◽  
Conan Ayade Salvador
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
Water Use ◽  
Block Design ◽  
Time Domain Reflectometry ◽  
Yield Response ◽  
Response Factor ◽  
Use Efficiency ◽  
The Mean ◽  
Yield Response Factor

ABSTRACT: The aim of the present study was to evaluate the effect of different irrigation depths on the yield, water use efficiency (WUE), and yield response factor (Ky) of carrot (cv. 'Brasília') in the edaphoclimatic conditions of Baixada Fluminense, RJ, Brazil. Field trials were conducted in a Red-Yellow Argisol in the 2010-2011period. A randomized block design was used, with 5 treatments (depths) and 4 replicates. Depths were applied by drippers with different flow rates, and the irrigation was managed by time domain reflectometry (TDR) technique. The reference (ETo) and crop (ETc) evapotranspiration depths reached 286.3 and 264.1mm in 2010, and 336.0 and 329.9mm in 2011, respectively. The root yield varied from 30.4 to 68.9t ha-1 as a response to treatments without irrigation and 100% replacement of the soil water depth, respectively. Values for WUE in the carrot crop varied from 15 to 31kg m-3 and the mean Ky value was 0.82. The mean values for Kc were obtained in the initial (0.76), intermediate (1.02), and final (0.96) stages. Carrot crop was influenced by different water depths (treatments) applied, and the highest value for WUE was obtained for 63.4% of soil water replacement.

scholarly journals Water Deficit Modulates the CO2 Fertilization Effect on Plant Gas Exchange and Leaf-Level Water Use Efficiency: A Meta-Analysis

2021 ◽  
Vol 12 ◽  
Author(s):  
Fei Li ◽  
Dagang Guo ◽  
Xiaodong Gao ◽  
Xining Zhao
Keyword(s):  
Gas Exchange ◽  
Water Use Efficiency ◽  
Soil Water ◽  
Water Deficit ◽  
Water Use ◽  
Future Climate Change ◽  
Leaf Level ◽  
Fertilization Effect ◽  
Use Efficiency ◽  
Stimulation Of

Elevated atmospheric CO2 concentrations ([eCO2]) and soil water deficits significantly influence gas exchange in plant leaves, affecting the carbon-water cycle in terrestrial ecosystems. However, it remains unclear how the soil water deficit modulates the plant CO2 fertilization effect, especially for gas exchange and leaf-level water use efficiency (WUE). Here, we synthesized a comprehensive dataset including 554 observations from 54 individual studies and quantified the responses for leaf gas exchange induced by e[CO2] under water deficit. Moreover, we investigated the contribution of plant net photosynthesis rate (Pn) and transpiration rates (Tr) toward WUE in water deficit conditions and e[CO2] using graphical vector analysis (GVA). In summary, e[CO2] significantly increased Pn and WUE by 11.9 and 29.3% under well-watered conditions, respectively, whereas the interaction of water deficit and e[CO2] slightly decreased Pn by 8.3%. Plants grown under light in an open environment were stimulated to a greater degree compared with plants grown under a lamp in a closed environment. Meanwhile, water deficit reduced Pn by 40.5 and 37.8%, while increasing WUE by 24.5 and 21.5% under ambient CO2 concentration (a[CO2]) and e[CO2], respectively. The e[CO2]-induced stimulation of WUE was attributed to the common effect of Pn and Tr, whereas a water deficit induced increase in WUE was linked to the decrease in Tr. These results suggested that water deficit lowered the stimulation of e[CO2] induced in plants. Therefore, fumigation conditions that closely mimic field conditions and multi-factorial experiments such as water availability are needed to predict the response of plants to future climate change.

Plastic film cover during the fallow season preceding sowing increases yield and water use efficiency of rain-fed spring maize in a semi-arid climate

2019 ◽  
Vol 212 ◽  
pp. 203-210 ◽  
Author(s):  
Zhe Zhang ◽  
Yanqing Zhang ◽  
Zhanxiang Sun ◽  
Jiaming Zheng ◽  
Enke Liu ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Arid Climate ◽  
Plastic Film ◽  
Spring Maize ◽  
Use Efficiency ◽  
Semi Arid
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