Estimation of Crop Water Requirements and Irrigation Scheduling for Major Crops Grown in India's North-Eastern Region

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Florence Akangle Panme*
Laxmi Narayan Sethi

Abstract

The water demand of some agricultural crops grown in Assam was assessed in this research. To estimate the crop water requirements of potato, chili, and brinjal, the FAO-CROPWAT model was used. The climatic parameters like rainfall, solar radiation, wind speed, sun hours, relative humidity, minimum and maximum temperature were collected for 30 years from the Indian Meteorological Department (IMD) to estimate the crop water requirement (CWR). The reference evapotranspiration (ETo) was computed by using the Food and Agriculture Organization (FAO)-recommended Penman-Monteith method and was found to vary from 1.84 mm/day to 4.49 mm/day. The calculated ETo was further used to compute the CWR, the net irrigation requirement (NIR), and the gross irrigation requirement (GIR) to plan for irrigation application during the growing stages of the selected crops. The total CWR of potato, chili, and brinjal was estimated to be 260.6 mm, 262.1 mm, and 274.2 mm, respectively, and the total NIR of potato, chili, and brinjal sowed on the 1st of October was found to be 162.8 mm, 149.0 mm, and 167.2 mm, respectively, with an irrigation efficiency of 70%. In December, the CWR and NIR of potato and brinjal were found to be the highest. The month with the least effective rainfall (8.5 mm) was December. The findings of the study showed that efficient irrigation water management and irrigation scheduling can be achieved by using the CROPWAT model to maximize crop yield and minimize crop water stress.


Keywords: crop water requirement; evapotranspiration; irrigation scheduling; North-East India


*Corresponding author: E-mail: panmeflorence@gmail.com

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Original Research Articles

References

Akinbile, C.O., 2020. Crop water requirements, biomass and grain yields estimation for upland rice using CROPWAT, AQUACROP and CERES simulation models. Agricultural Engineering International: CIGR Journal, 22(2), 1-20.

Memon, A.V. and Jamsa S., 2018. Crop water requirement and irrigation scheduling of soybean and tomato crop using CROPWAT 8.0. International Journal of Research and Technology, 5(9), 669-671.

Bennett, D.R., Harms, T.E. and Entz, T., 2014. Net irrigation water requirements for major irrigated crops with variation in evaporative demand and precipitation in southern Alberta. Canadian Water Resources Journal, 39(1), 63-72, DOI: 10.1080/07011784.2014.872864.

Nithya, K.B. and Shivapur, A.V., 2016. Study on water requirement of selected crops under Tarikere Command Area using CROPWAT. Irrigation and Drainage Systems Engineering, 5(153), DOI: 10.4172/2168-9768.1000153.

Sharma, D.N. and Tare, V., 2022. Assessment of irrigation requirement and scheduling under canal command area of Upper Ganga Canal using CropWat model. Environmental Science Modeling Earth Systems and Environment, 8(2), 1863-1873, DOI: 10.1007/s40808-021-01184-7.

Ali, M.H., 2010. Crop water requirement and irrigation scheduling. In M.H. Ali, ed. Fundamentals of Irrigation and On-farm Water Management. Volume 1. New York: Springer, pp. 399-452.

Michael, A.M., 2009. Irrigation Theory and Practice. 2nd ed. New Delhi: Vikas Publishing House.

Ewaid, S.H., Abed, S.A. and Al-Ansari, N., 2019. Crop water requirements and irrigation schedules for some major crops in Southern Iraq. Water, 11(4), DOI: 10.3390/w11040756.

Khose, S. and Biswal, S., 2020. Study of crop evapotranspiration and irrigation scheduling of different crops using Cropwat model in Waghodia Region, India. International Journal of Current Microbiology and Applied Sciences, 9, 3208-3220, DOI: 10.20546/ijcmas.2020.905.381.

Kibret, E.A., Abera, A., Ayele, W.T. and Alemie, N.A., 2021. Performance evaluation of surface irrigation system in the case of Dirma small-scale irrigation scheme at Kalu Woreda, Northern Ethiopia. Water Conservation and Science Engineering, 6(4), 263-274, DOI: 10.1007/s41101-021-00119-8.

Smith, M., 1991. CROPWAT: Manual and Guidelines. Rome: Food and Agriculture Organization.

Desta, F., Bissa, M. and Korbu, L., 2015. Crop water requirement determination of chickpea in the central vertisol areas of Ethiopia using FAO CROPWAT model. African Journal of Agricultural Research, 10(7), 685-689, DOI: 10.5897/AJAR2014.

Khaydar, D., Chen, X., Huang, Y., Liu, T., Friday, O., Khusen, G. and Gulkaiyr, O., 2021. Investigation of crop evapotranspiration and irrigation water requirement in the lower Amu Darya River Basin, Central Asia. Journal of Arid Land, 13(1), 23-39, DOI: 10.1007/s40333-021-0054-9.

Smith, M., 1992. CROPWAT: A Computer Program for Irrigation Planning and Management. Paper No. 46. Rome: Food and Agriculture Organization of the United Nation.

Babu, R.G., Babu, G.R and Kumar, H.V.H., 2015. Estimation of crop water requirement, effective rainfall and irrigation water requirement for vegetable crops using CROPWAT. International Journal of Agricultural Engineering, 8(1), 15-20.

Balan, P. and Joseph, A., 2021. Modeling the crop water requirement and irrigation scheduling of banana using CROPWAT 8 model: A case study of Manali watershed, Thrissur, Kerala. International Journal of Farm Sciences, 11(3), 1-9, DOI: 10.5958/2250-0499.2021.00024.0.

Tewabe, D. and Dessie, M., 2020. Enhancing water productivity of different field crops using deficit irrigation in the Koga irrigation project, Blue Nile Basin, Ethiopia. Cogent Food and Agriculture, 6(1), DOI: 10.1080/23311932.2020.1757226.

Climate Research and Services, Indian Meteorological Department, 2022. Data Supplied Portal. [online] Available at: https://dsp.imdpune.gov.in/.

Allen, R.G., Pereira, L.A. Raes, D. and Smith, M., 1998. Crop Evapotranspiration-Guidelines for Computing Crop Water Requirements- FAO Irrigation and Drainage. Paper No. 56. Rome: Food and Agriculture Organization of the United Nation.

Doria, R., Madramootoo, C.A., and Mehdi, B.B., 2006. Estimation of future crop water requirements for 2020 and 2050, using CROPWAT. 2006 IEEE EIC Climate Change Conference, Ottawa, Canada, 10-12 May, 2006, pp. 1-6.

Liu, Z., Liu, T., Huang, Y., Duan, Y., Pan, X. and Wang, W., 2022. Comparison of crop evapotranspiration and water productivity of typical delta irrigation areas in Aral Sea Basin. Remote Sensing, 14(2), DOI: 10.3390/rs14020249.

Mohammed, A.T. and Irmak, S., 2022. Maize response to coupled irrigation and nitrogen fertilization under center pivot, subsurface drip and surface (furrow) irrigation: Soil-water dynamics and crop evapotranspiration. Agricultural Water Management, 267, DOI: 10.1016/j.agwat.2022.107634.

Howell, T.A. and Steward, B.A., 2003. Encyclopedia of Water Science. New York: CRC Press.

Gabr, M.E.S., 2021. Modelling net irrigation water requirements using FAO-CROPWAT 8.0 and CLIMWAT 2.0: a case study of Tina Plain and East South El Kantara regions, North Sinai, Egypt. Archives of Agronomy and Soil Science, 68(10), 1322-1337, DOI: 10.1080/03650340.2021.1892650.

Djaman, K. and Irmak, S., 2013. Actual crop evapotranspiration and alfalfa- and grass-reference crop coefficients of maize under full and limited irrigation and rainfed conditions. Journal of Irrigation and Drainage Engineering, 139(6), 433-446, DOI: 10.1061/(asce)ir.1943-4774.0000559.