IoT Based Crop-Field Monitoring and Precise Irrigation System Using Crop Water Requirement

2020 ◽  
pp. 291-304
Author(s):  
Kanchana Rajaram ◽  
R. Sundareswaran
Keyword(s):  
Irrigation System ◽  
Field Monitoring ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Crop Water ◽  
Crop Field

scholarly journals Evaluating the Irrigation Practice of Center Pivot Sprinkler Irrigation System at Hiwot Agricultural Mechanization, Ethiopia

2019 ◽  
pp. 1-7
Author(s):  
Kasa Mekonen Tiku ◽  
Pratap Singh
Keyword(s):  
Flow Rate ◽  
Irrigation System ◽  
Sprinkler Irrigation ◽  
Irrigation Scheduling ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Crop Water ◽  
Irrigation Practice ◽  
Center Pivot ◽  
Actual Flow Rate

Irrigation practice evaluation of center pivot sprinkler irrigation system at Hiwot Agricultural Mechanization farm, North/west Ethiopia was conducted. The aim of the study was evaluating the existing center pivot irrigation practice in terms of irrigation scheduling. Measuring flow rate of center pivot machines for existing irrigation practice and Crop water requirement based scheduling was used to evaluate the system. The highest value of crop water requirement at location m6, m7 and m12 was 5.24 mm/day in September at mid-stage and for location m4 and m8 in October at mid-stage equal to 4.99 mm/day. Whereas, the lowest crop water requirement at location m6, m7 and m12 was 2.52 mm/day in July at the initial stage which was and for location m4 and m8 in august at initial stage equal to 2.08 mm/day. The actual flow rate of center pivot machines varies from 0.7l/s for m7 to a maximum of 1l/s for m4 whereas estimated crop water requirement flow rate varies from 0.6l/s for m6 to a maximum of 0.8l/s for m4. The study also revealed that the actual flow rate of the nozzles was excess. Therefore improvement of center pivot sprinkler irrigation system can be amended by using proper irrigation scheduling and by introducing an automatic control system.

Irrigation Scheduling Based on Evaporation and Crop Water Requirement for Summer Peanuts1

1984 ◽  
Vol 11 (1) ◽  
pp. 4-6 ◽  
Author(s):  
D. K. Pahalwan ◽  
R. S. Tripathi
Keyword(s):  
Water Use ◽  
Irrigation Water ◽  
Irrigation Scheduling ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Pan Evaporation ◽  
Crop Water ◽  
Formation Stage ◽  
Evaporation Ratio ◽  
Pod Development

Abstract Field experiment was conducted during dry season of 1981 and 1982 to determine the optimal irrigation schedule for summer peanuts (Arachis hypogaea L.) in relation to evaporative demand and crop water requirement at different growth stages. It was observed that peanut crop requires a higher irrigation frequency schedule during pegging to pod formation stage followed by pod development to maturity and planting to flowering stages. The higher pod yield and water use efficiency was obtained when irrigations were scheduled at an irrigation water to the cumulative pan evaporation ratio of 0.5 during planting to flowering, 0.9 during pegging to pod formation and 0.7 during pod development to maturity stage. The profile water contribution to total crop water use was higher under less frequent irrigation schedules particularly when the irrigations were scheduled at 0.5 irrigation water to the cumulative pan evaporation ratio up to the pod formation stage.

scholarly journals Crop Pattern Change and Crop Water Requirement Judgment using Remote Sensing and GIS Techniques: a research on Tungabhadra Dam Right Canal

2019 ◽  
Vol 8 (2S3) ◽  
pp. 652-657
Keyword(s):  
Remote Sensing ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Delta Method ◽  
Geographical Information ◽  
Command Area ◽  
Cropping Pattern ◽  
Crop Water ◽  
Irrigation Project ◽  
Gis Techniques

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

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