• Jahanur Rahman
• Bibhash Sarma

The assessment of crop water requirement (CWR) and irrigation scheduling are the two most important requirements for irrigation development of a basin. In 1948, Food and Agricultural Organization (FAO) studied on crop water requirements and according to FAO, the CWR is the need of water to meet Evapo-Transpiration of crops (ET crop). It depends on climate, growth stages of the crops, rooting depth of crops and soil type. The software CROPWAT 8.0 and CLIMWAT 2.0 are used for the calculation of crop water requirement and scheduling of irrigation requirements. The necessary meteorological data are taken from CLIMWAT 2.0 for stations Jorhat, Assam-India. The CRO for the different crops of the basin have been calculated by using Cropwat 8.0 software. The irrigation requirements for winter crops are very less due to higher effective rainfall than evapotranspiration. The same is more for rabi and summer crops due to scanty rainfall. The irrigation scheduling prevents the crop area from water logging.

CLIMWAT 2.0, CROPWAT, Evapotranspiration, Effective Rainfall, Crop Water Requirements and Irrigation scheduling

"ASSESSMENT OF CROP WATER REQUIREMENTS AND IRRIGATION SCHEDULING OF DHANSHIRI BASIN", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.685-694, January-2019, Available :http://www.jetir.org/papers/JETIR1901791.pdf

"ASSESSMENT OF CROP WATER REQUIREMENTS AND IRRIGATION SCHEDULING OF DHANSHIRI BASIN", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp685-694, January-2019, Available at : http://www.jetir.org/papers/JETIR1901791.pdf