scholarly journals Analysis of Cropping Pattern Followed by Members and Non-Members of Water Users’ Association in Upper Krishna Project Command Area

Author(s):  
Veeresh S. Wali ◽  
R. K. Mishra ◽  
B. P. Mohapatra ◽  
S. N. Mishra

Agriculture is most important resources of any country worldwide which is a major renewable source and is dynamic. The study area selected was command area under Basavanna canal which is one of the canals to Tungabhadra river on right side bank. This selected canal for cropping pattern analysis has a command of 1240.00 hectare and is located at Vallabhpur, Bellary district. Basavanna canal has a designed discharge capacity of 125 cusecs for serving the cropping area. Every irrigation project has planned cropping pattern, the crop water requirement (CWR) for which is calculated based on Duty / Delta method. However due to growing population and increase demand for food products crop violation is found in every command leading to more irrigation. Remote Sensing (RS) and Geographical Information System (GIS) techniques have emerged as powerful tools for crop water management. Remotely sensed land use-land cover data was used for analysing the cropping pattern in the area and also to estimate the change in the cropping pattern. This study was performed using ArcGIS 9.3 and ERDAS 9 software. Crop water requirement was calculated using Modified Penman Equation for present cropping pattern. The study finds that, approximately 50% of water could be saved using modified Penmen method compared to crop water requirement calculated using Duty Delta method as adopted in project report and the same water may be diverted to meet other needs


1998 ◽  
Vol 18 ◽  
Author(s):  
Rajesh Singhal ◽  
M. K. Pandit

Introduction of canal irrigation in the Kota region (western India) has significantly modified the groundwater regime of the region and has resulted in water logging and soil salinisation. Present paper focuses on diagnosis and correlation of such problems with surface irrigation in the Left Main Canal region of the Chambal command area. The results of the studies carried out for a two year period (1994- 1996) have been discussed. The area of present investigation is predominantly alluvial covered with limestone-sandstone ridges, belonging to the Vindhyan Supergroup (late Proterozoic), exposed along the western and southwestern fringe. The water table is controlled by the topography and both the pre- and post-monsoon water table profiles are quite similar. The seasonal water table fluctuation varies from 1.62 to 8.82 m. Major part of the area of study having water level depth < 6 m falls under the category of shallow water table zone. The region with <4 m depth, the 'critically water logged' region needs special attention. The insufficient circulation of water, resulting in water stagnation at shallow depths has attributed to soil salinisation. The mitigation methods suggested in the study include judicious use of water, alternate cropping pattern, conjunctive surface and groundwater irrigation and application of subsurface drains.


2021 ◽  
Author(s):  
Mulu Sewinet Kerebih ◽  
Ashok Kumar Keshari

Abstract In this study, the land and water resources allocation model was developed to determine optimal cropping patterns and water resources allocations at different rainfall probability exceedance levels (PEs) to ensure maximum agricultural return in the Hormat-Golina valley irrigation command area, Ethiopia. To account the uncertainty of rainfall variability, the monthly dependable rainfall was estimated at three levels of reliability (20, 50 and 80% PEs) which are representing wet, normal and dry seasons based on regional experience. The irrigation water demand which was used as an input to the optimization model was estimated at each level of reliability by using CROPWAT model. The net annual returns of optimal cropping patterns were estimated as 181, 179 and 175 million Ethiopia Birr at 20 %, 50 % and 80 % PEs, respectively. The result of the optimal cropping pattern indicates that, the net annual return of the command area was increased to 45.75%, 45.84% and 47.01% than the Government targeted at 20%, 50% and 80% PEs, respectively. The findings reveal that the optimal land and water resources allocation model is very useful to the planners and decision makers to maximize the agricultural return particularly in areas where land and water resources are limited.


2015 ◽  
Vol 17 ◽  
pp. 55-60
Author(s):  
Krishna Prasad Rijal

Nepal has glorious history with tens of thousands of self sustainable farmer managed irrigation systems, which accounts for about two third of total irrigated area in the country. Sulitar Irrigation System, located in Chitwan district of Nepal and constructed almost two decades ago, is one of them. The farmers have been relentlessly working for construction, maintenance, repair and operation of the system with wider community participation. Participation is not only limited to the field level but also extends to crafting of rules and regulation pertaining to the governance of the system. Participatory approach adopted in this system has fostered transparency and accountability in the management entity with a sense of ownership and self responsibility as an asset embraced by water users. In addition, effective system of resource mobilization for Operation and Maintenance (O & M) is appreciable. Their working culture of participation, purposefulness and integrity has drawn in huge amount of internal as well as external resources to the project. Efficient networking with other organizations has led to profound resource mobilization, leadership sharing and a buildup of strong social capital. They are also well aware of the sustainability of the system and pre-requisites for it. Resource generation and O & M of the system have been institutionalized for its durability and long-term sustainability.Fundamental requirement for an irrigation system is the impact made by the system on the agriculture and livelihood of the people within the command area. Subsistence based agriculture prevailing before the service of irrigation system has now advanced to crop intensification and crop diversification paving the way for commercialization. Food security in the community has been enhanced and poor livelihood of common people has been transforming towards prosperity. HYDRO Nepal JournalJournal of Water, Energy and EnvironmentIssue: 17, July 2015 


Author(s):  
K. Ramakrishnan

The World Bank Supported TN IAM (Irrigated Agriculture Modernization) Project is a follow up of IAMWARM presently it was called as (Irrigated Agriculture Modernization and Water-Bodies Restoration and Management) Project which has made significant development and impacts in the Tamil Nadu state by modernizing irrigation infrastructure, improving water use efficiency, enhancing yield and productivity of agriculture in a climate resilient production systems, diversification towards high-value crops, strengthening the institutional reforms through Participatory Irrigation Management (PIM) and Water Users Association (WUA). Madurai District of Tamil Nadu was purposively selected for this study because Tamil Nadu Irrigated Agriculture Modernization Project was conducted under Tamil Nadu Agricultural University.  The foremost objective of the study is to assess the knowledge level of respondents in the study area. According to crop production technology aspects revealed that (79.00%) of the beneficiaries possessed knowledge in using VBN 6 variety for cultivation. The study concluded that majority (80.00%) of the beneficiaries were possessed knowledge on (cultural control) fixation of light traps, crop rotation (77.50%) and sowing carry out in proper season.


Author(s):  
Altaf Ali Siyal ◽  
Imran Lakhair ◽  
Muhammad Munir Babar ◽  
Pirah Siyal ◽  
Ghulam Shabir Solangi

The effluent water brought by RBOD (Right Bank Outfall Drain) is not only threat to the aquatic life of Manchar Lake but also the fertile agricultural lands which are being cultivated by use of lake water through Danastar Wah are at risk of salinization. The farming community of the area is scary of continual use of irrigation waters received through the Danastar Wah; they are of the view that the constant use of this water will ruin their fertile lands into salt-affected soils. Thus, keeping in view the fears of the farmers of the command area of Danastar Wah, a study was carried out to investigate the water quality of the Manchar Lake, RBOD MNV (Main Nara Valley) drain and Danastar Wah, and to examine soil salinity status of the area using Geo-referenced field and satellite imagery data for Kharif season of the year 2015. The results of the study showed that the EC (Electrical Conductivity) of the Danastar Wah water was below 1.2 dS/m. Thus, the water was suitable for irrigation purpose. In all the water samples, Na+, Ca2+ + Mg2+ and CO3 concentrations were found within the permissible limits, while no concentration of HCO3 was found in any of the water samples. In the command area, clay texture was dominant down to a depth of 60 cm soil profile. In the area about 37, 28, and 30% of the soils were normal (non-saline), saline and sodic, respectively; while only 5% of soils were saline-sodic. The cotton crop was identified as the major Kharif crop, occupying about 13.76% (2,844 ha) of the total command area, followed by rice crop grown on about 5.21% (1,078 ha) of the command area. The overall accuracy of image classification was 90% with a kappa coefficient of 0.86. Based on this study, it can be concluded that the water of the Danastar Wah can be used for irrigation purpose during Kharif season only with the condition that adequate land drainage is maintained. It is also suggested that before using the water of Manchar Lake, RBOD and Danastar Wah for Rabi season, analysis for water quality be conducted. GeoInformatics (GIS and RS) tools can be employed for spatial and temporal monitoring of water quality of the Manchar Lake.


2021 ◽  
Vol 22 (1) ◽  
pp. 177-182
Author(s):  
S.K. Bainda ◽  
GS Malhotra

The study was conducted to know the landscape modification and agricultural intensification at a terrestrial segment of the Sidhmukh Canal Irrigation Project (SCIP) command area. The study confirms that the inception of the Sidhmukh Canal Project caused a massive land-use pattern change and shifted irrigation systems towards rain-fed farming to canal irrigation. Furthermore, the increased water availability by SCIP has extensively inflated irrigated land area, changed cropping pattern and land productivity. The study noticed a significant positive impact of SCIP on agricultural intensification. The study was accomplished by analysing primary data provided by the Department of Water Resources, Department of Agriculture, and Department of Economics & Statistics, Rajasthan Government.


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