scholarly journals Enhancing Water Use Efficiency and Grain Yield of Wheat by Optimizing Irrigation supply in Arid and Semi-Arid regions of Pakistan

2021 ◽  
Author(s):  
Mahwish Jabeen ◽  
Sajid Rashid Ahmed ◽  
Mukhtar Ahmed
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Arid Regions ◽  
Irrigation Supply ◽  
Use Efficiency ◽  
Semi Arid

scholarly journals Spatial–Temporal Evolution Characteristics and Influencing Factors of Agricultural Water Use Efficiency in Northwest China—Based on a Super-DEA Model and a Spatial Panel Econometric Model

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 632
Author(s):  
Weinan Lu ◽  
Wenxin Liu ◽  
Mengyang Hou ◽  
Yuanjie Deng ◽  
Yue Deng ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Water Resource ◽  
Arid Regions ◽  
Econometric Model ◽  
Northwest China ◽  
Agricultural Water ◽  
Agricultural Water Use ◽  
Use Efficiency ◽  
Semi Arid

Improving agricultural water use efficiency (AWUE) is an important way to solve the shortage of water resources in arid and semi-arid regions. This study used the Super-DEA (data envelopment analysis) to measure the AWUE of 52 cities in Northwest China from 2000 to 2018. Based on spatial and temporal perspectives, it applied Exploratory Spatial Data Analysis (ESDA) to explore the dynamic evolution and regional differences of AWUE. A spatial econometric model was then used to analyze the main factors that influence the AWUE in Northwest China. The results showed firstly that the overall AWUE in Northwest China from 2000 to 2018 presented a steady upward trend. However, only a few cities achieved effective agricultural water usage by 2018, and the differences among cities were obvious. Secondly, AWUE showed an obvious spatial autocorrelation in Northwest China and showed significant high–high and low–low agglomeration characteristics. Thirdly, economic growth, urbanization development, and effective irrigation have significant, positive effects on AWUE, while per capita water resource has a significant, negative influence. Finally, when improving the AWUE in arid and semi-arid regions, plans should be formulated according to local conditions. The results of this study can provide new ideas on the study of AWUE in arid and semi-arid regions and provide references for the formulation of regional agricultural water resource utilization policies as well.

Nutrient and tillage strategies to increase grain yield and water use efficiency in semi-arid areas

2016 ◽  
Vol 178 ◽  
pp. 137-147 ◽  
Author(s):  
Yanhao Lian ◽  
Shahzad Ali ◽  
Xudong Zhang ◽  
Tianlu Wang ◽  
Qi Liu ◽  
...  
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Arid Areas ◽  
Use Efficiency ◽  
Semi Arid

scholarly journals Water use of cowpea under deficit irrigation and cultivation systems in semi-arid region

2019 ◽  
Vol 23 (4) ◽  
pp. 271-276
Author(s):  
Rômulo M. O. de Freitas ◽  
Jeferson L. D. Dombroski ◽  
Francisco C. L. de Freitas ◽  
Narjara W. Nogueira ◽  
Tiago S. Leite ◽  
...  
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Leaf Area ◽  
Water Use ◽  
Water Consumption ◽  
Arid Region ◽  
No Tillage ◽  
Use Efficiency ◽  
Semi Arid Region ◽  
Semi Arid

ABSTRACT The resilience of crops to drought depends heavily on the cultural practices adopted, which can have a direct effect on water use efficiency. The aim of this study was to assess the influence of irrigation intervals on the growth, water consumption and water use efficiency of cowpea crops (cv. BRS Guariba) under conventional and no-tillage systems. The experiment was carried out in the semi-arid region of Rio Grande do Norte, Brazil, using a split-plot in a randomised complete block design, with four replications. Treatments consisted of two cultivation systems in the whole plots (conventional and no-tillage) and six irrigation intervals in the subplots (2, 6, 10, 14, 18 and 22 days) which were applied at full bloom. The biomass of the different parts of the plant, leaf area and leaf area index were assessed at 64 days after sowing (DAS) and grain yield, water consumption and water use efficiency at 70 DAS. No-tillage is a promising cultivation technique for cowpea crops, promoting higher grain yield and water use efficiency under semi-arid conditions. This system allows cowpea cultivation with irrigation intervals of 10 or 14 days, with no or small reduction in yield, respectively.

Comparing the adaptation of sunola, canola and mustard to three soil climatic zones of the Canadian prairies

1998 ◽  
Vol 78 (4) ◽  
pp. 565-570 ◽  
Author(s):  
P. R. Miller ◽  
A. M. Johnston ◽  
S. A. Brandt ◽  
C. L. McDonald ◽  
D. A. Derksen ◽  
...  
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Seed Yield ◽  
Yield Potential ◽  
Brown Soil ◽  
Seeding Date ◽  
Use Efficiency ◽  
Wheat Stubble ◽  
Semi Arid

Sunola (Helianthus annuus L.) emerged in the early 1990s as a new drought- and heat-tolerant oilseed crop option for prairie producers. This study was conducted to compare the agronomic performance of sunola with that of canola (Brassica napus L. and B. rapa L.) and mustard (B. juncea L.). In 1993 and 1994 a spring seeding date experiment comparing crop maturity and grain yield of sunola, canola and mustard was conducted at three locations: Swift Current and Scott in the semi-arid Brown and Dark Brown soil zones, respectively, and Melfort in the subhumid Black soil zone. Additionally, a tillage system experiment was conducted at Swift Current that compared grain yield and water-use-efficiency (WUE) of sunola and mustard grown in four tillage treatments: tilled, and untilled fallow, and tilled, and untilled wheat stubble. In the more typical 1994 season, the average thermal time to reach maturity for sunola was 1200 growing degree days (GDD), consistent for all locations, and was greater than that required for B. napus by 70 to 320 GDD (1–4 wk), depending on location. When compared with the seed yield of the Brassica spp. oilseeds, sunola averaged 59% at Swift Current, 54% at Scott, and 94% at Melfort. The WUE for sunola was 3.0 and 2.9 kg ha−1 mm−1 when grown on fallow and wheat stubble, respectively, compared with 5.6 and 4.8 kg ha–1 mm–1 for mustard. Due to its low seed yield potential and low WUE, sunola is not well adapted for production in the semi-arid Brown and Dark Brown soil zones. Key words: Sunola, canola, mustard, adaptation, seeding date, water-use-efficiency

Improving Water Use Efficiency in Semi-Arid Regions through Integrated Aquaculture/Agriculture

2011 ◽  
Vol 23 (3) ◽  
pp. 212-230 ◽  
Author(s):  
Sami Abdul-Rahman ◽  
I. Patrick Saoud ◽  
Mohammed K. Owaied ◽  
Hanafy Holail ◽  
Nadim Farajalla ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Arid Regions ◽  
Integrated Aquaculture ◽  
Use Efficiency ◽  
Semi Arid
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