scholarly journals Performance Evaluation of Gated Pipes Technique for Improving Surface Irrigation Efficiency in Maize Hybrids

2015 ◽  
Vol 06 (05) ◽  
pp. 550-570 ◽  
Author(s):  
Osama A. M. Ali ◽  
Ahmed S. H. Mohammed
Keyword(s):  
Performance Evaluation ◽  
Irrigation Efficiency ◽  
Surface Irrigation ◽  
Maize Hybrids

scholarly journals Performance evaluation and optimization studies of border irrigation system for wheat in the Indian Punjab

Water SA ◽  
2019 ◽  
Vol 45 (1 January) ◽  
Author(s):  
Samanpreet Kaur ◽  
Amina Raheja ◽  
Rajan Aggarwal
Keyword(s):  
Performance Evaluation ◽  
Water Resources ◽  
Irrigation System ◽  
Irrigation Efficiency ◽  
Inflow Rate ◽  
Surface Irrigation ◽  
Row Crops ◽  
Flow Rates ◽  
Irrigation Methods ◽  
Off Time

Surface irrigation methods are the most widely practiced worldwide for irrigation of row crops. The major problem with these methods is low irrigation efficiency, mainly due to poor design. In the Punjab, border irrigation is used to irrigate wheat crops grown over 90% of the cultivated area. The evaluation of existing border systems using a surface irrigation model showed that the irrigation conditions, comprising of inflow rate, border dimensions, and cut-off time, were diverse in tubewell and canal irrigated areas. The study also examined the feasibility of optimizing border dimensions taking into consideration the existing irrigation conditions for achieving more than 60% application efficiency as compared to the 30–40% achieved under present field conditions. In the case of a border length of 60 m, it was recommended to increase border width in the range of 10–45 m and 20–60 m for different flow rates of 10, 20 and 30 L/s in light and medium soils, respectively. For higher flow rates, a border length ranging from 120–150 m was found to be optimum. For a border length of 150 m, it was recommended to keep a border width ranging from 4–38 m and 8–65 m in light soils and medium soils, respectively, for flow rates of 10, 20, 30 and 60 L/s. Optimizing border dimensions is a practical way to achieve efficient and judicious use of water resources.

scholarly journals Field measurements based model for surface irrigation efficiency assessment

2015 ◽  
Vol 156 ◽  
pp. 30-42 ◽  
Author(s):  
D. Canone ◽  
M. Previati ◽  
I. Bevilacqua ◽  
L. Salvai ◽  
S. Ferraris
Keyword(s):  
Field Measurements ◽  
Irrigation Efficiency ◽  
Surface Irrigation ◽  
Efficiency Assessment

scholarly journals Performance Evaluation of Sweetcorn with Different Levels of Irrigation and Nitrogen through Drip during Post Monsoon Season at Rajendranagar, Hyderabad, India

2020 ◽  
pp. 362-372
Author(s):  
Y. Siva Lakshmi ◽  
D. Sreelatha ◽  
T. Pradeep
Keyword(s):  
Performance Evaluation ◽  
Drip Irrigation ◽  
Monsoon Season ◽  
Surface Irrigation ◽  
Yield Attributes ◽  
Nitrogen Levels ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Fodder Yield ◽  
Different Levels

The present study on Performance evaluation of Sweetcorn with different levels of Irrigation and nitrogen through drip during post monsoon season at Rajendranagar, Hyderabad, India was conducted for two years at Maize Research Centre, Agricultural Research Institute (ARI), Rajendranagar, Hyderabad to assess the influence of different levels of irrigation and nitrogen on performance of sweetcorn hybrid. Randomized block design with factorial concept was used in the study and the experiment was replicated thrice. The treatments used were two factors. Factor I was five irrigation levels viz., I1: Drip irrigation at 60% E pan, I2: Drip irrigation at 80% E pan, I3: Drip irrigation at 100% E pan, I4:Drip irrigation at 120% E pan andI5: Surface irrigation at IW/CPE- 1.0 and Factor II was four nitrogen levels in kg ha-1 viz., N1: 120, N2: 160 N3: 200 N4: 240. Pooled mean of two years revealed that, drip irrigation with 120% E pan which was on par with 100% E pan showed significantly better crop performance in terms of growth characteristics like plant height, Leaf Area Index and dry matter production and both were superior to drip irrigation of 80 and 60% E pan as well as surface irrigation method. Among the yield attributes, cob girth and 100 seed weight were not influenced either with irrigation or nitrogen and their interaction. Cob length, number of seeds row-1, green cob and fodder yield were higher with drip irrigation of 120% E pan but were on par with 100% E pan. Among the different nitrogen levels, nitrogen at the rate of 240 kg ha-1recorded significantly higher growth parameters, yield attributes, green cob and fodder yield but it was on par with 200 kg ha-1 and both were superior over 160 and 120 kg N ha-1. Drip irrigation of 100% E pan and a nitrogen level of 200 kg ha-1 resulted in higher gross and net returns and benefit cost ratio compared to other irrigation and nitrogen treatments. From the study, drip irrigation of 100% E pan with 200 kg N ha-1is recommended for getting higher yields and net income in sweetcorn hybrid grown in Southern Agro climatic zone of Telangana, India.

scholarly journals Performance Evaluation of Maize Hybrids (Zea mays L.)

2018 ◽  
Vol 7 (11) ◽  
pp. 1198-1203
Author(s):  
B. Manjunatha ◽  
B. Niranjana Kumara ◽  
G.B. Jagadeesh
Keyword(s):  
Zea Mays ◽  
Performance Evaluation ◽  
Zea Mays L ◽  
Maize Hybrids

scholarly journals PERFORMANCE EVALUATION OF MAIZE HYBRIDS UNDER RAINFED ENVIRONMENTS ACROSS MIDDLE HILLS OF NEPAL

2020 ◽  
Vol 1 (1) ◽  
pp. 43-49
Author(s):  
Keshab Babu Koirala ◽  
Tirtha Raj Rijal ◽  
Govind KC ◽  
Ram Bahadur Katuwal ◽  
Narayan Bahadur Dhami ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Maize Hybrids

scholarly journals Effect of irrigation efficiency enhancement on water demand of date palms in a Tunisian oasis under climate change

2020 ◽  
Author(s):  
Zied Haj-Amor ◽  
Tapos Kumar Acharjee
Keyword(s):  
Climate Change ◽  
Field Measurements ◽  
Irrigation Efficiency ◽  
Water Salinity ◽  
Climate Change Scenarios ◽  
Efficiency Enhancement ◽  
Surface Irrigation ◽  
Date Palms ◽  
Irrigation Demand ◽  
The Impact

Abstract Consideration of future change in water salinity is important for estimating irrigation demand in salinity-prone arid regions. Further, it is important to evaluate the contribution of irrigation efficiency enhancement to climate change resilience. Based on field measurements in 2019, a simulation approach from 2019 to 2050 was carried out in this study to investigate the impact of climate change and its consequences (i.e., change in water salinity) on the future gross irrigation demand of date palms and possible applied dose of water in a Tunisian oasis considering different irrigation efficiency enhancements. The estimation was done under very high (RCP 8.5), medium (RCP 6.0), and low (RCP 4.5) emission scenarios using the CROPWAT model. Results first showed an increase in gross irrigation requirement under inefficient surface irrigation (37% efficiency) from 3,340 mm year−1 in 2019 to 3,588–3,642 mm year−1 in 2050 for different climate change scenarios. This significant increase is mainly attributed to a significant change in climate variables and a high increase in water salinity. Second, considerable water savings (up to 1,980 mm) can be achieved if surface irrigation efficiency increases from the current value of 37–70%. Finally, much water can be saved only by reducing the overdose amount of water.

Unimodal Surface Irrigation Efficiency

1988 ◽  
Vol 114 (1) ◽  
pp. 156-168 ◽  
Author(s):  
A. W. Blair ◽  
E. T. Smerdon
Keyword(s):  
Irrigation Efficiency ◽  
Surface Irrigation
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