Impact of different quantity and quality of irrigation water on crop yield and biomass of winter maize using FAO-Aqua crop model

Irrigation has a major role to play in the productivity of winter maize. Precise information about quantity and quality irrigation water is key for higher In present study attempt been made asses impact different depth on crop yield biomass maize using FAO-Aquacrop Model. first case was simulated varied from 20 mm 80 mm, keeping constant. Similarly, another optimum kept constant 1 10 ds/m. The increases up 40 cm application all three seasons. When similar comparison 30 reduction only 0.79%, 2.2% 2.4 % year 2016-17, 2017-18 2018-19 respectively. analysis suggested that this can easily be compromised saving water. This indicated Winter BurhiGandak river basin North Bihar deficit reduced by 14.4 %, 25.4 11.4 Assessment response model suggests found maximum with ds/m observed value 41.3 44.4 38.4 respectively 2018-19. used as an important tool efficient planning under diminishing supply deteriorating quality.