Estimation of water requirement and irrigation schedule for groundnut and sunflower crops in southern Odisha using FAO CROPWAT8.0 model

• Published in: Journal of agrometeorology Vol. 24; no. 3; pp. 309 - 311
• Main Authors: Sairam, Masina, Sagar, Lalichetti, Reddy, M Devender
• Format: Journal Article
• Language: English
• Published: Anand Association of Agrometeorologist 01.09.2022; Association of agrometeorologists
• Subjects: Climatic data; Crop production; Crop water; Crops; Cropwat 8.0, ETo, Groundnut, Irrigation requirement, Sunflower, Groundnut; Evapotranspiration; Groundnuts; Helianthus; Irrigation; Irrigation efficiency; Irrigation scheduling; Irrigation water; Loam soils; Meteorological data; Moisture effects; Productivity; Schedules; Scheduling; Software; Sunflowers; Water conservation; Water requirements; Water shortages; India
• DOI: 10.54386/jam.v24i3.503
• ISSN: 0972-1665

Scientific data on agricultural water requirements is required for efficient irrigation scheduling in order to determine crop production potential (Smith, 1992; Kuo et al., 2001). On the otherhand, the sunflower crop in South Odisha is being grown on conserved moisture after kharif rice and only one or two irrigations are given where ever water is available. [...]in order to enhance the productivity of groundnut and sunflower in south Odisha through proper irrigation scheduling, the present study was carried out using long-term meteorological data of Koraput and the Penman-Monteith method (FAO, 2009). CROPWAT 8.0 is an FAO-developed decision-support computer application that uses soil, crop, and climatic data to determine reference evapotranspiration (ET0), crop water need, irrigation schedule, and irrigation water requirement. [...]the use of CROPWAT model can assess the crop water requirement with a high level of accuracy and water needed for a particular crop pattern when adopted and will help in getting higher water productivity and gives greater scope in reducing the wastage of irrigation water.