However, Felix Robles, Water Control chief of the National Irrigation Administration (NIA) in Bulacan, said the water in Angat Dam could still meet the irrigation requirement
for rice crops in Bulacan and Pampanga, and domestic needs of Metro Manila
Sevilla added that after the water level plunges below critical level, "it is automatic that we give priority to the water supply in Metro Manila." "This reduction in irrigation requirement
will have no significant impact as far as the cropping season in Bulacan and Pampanga is concerned.
lewis, "Irrigation Requirement
of Arable Oregon Soils, Oregon State College," 1941, http://ir.library.oregonstate.edu/xmlui/bitstream/handle/1957/15005/StationBul- letin394.pdf.
Because 70% of the ground was covered by mature mango trees, the 198 mm of required irrigation was reduced by 30% to 138 mm and the total water requirements were 1,000,000 L = 1 ML and 100 mm/ha = 1 ML/ha for a total irrigation requirement
of 1.38 ML/ha.
INWQS requires 0 TCU for irrigation requirement
and raw groundwater colour failed to meet the requirement while treated groundwater value are closer to the acceptable range for the purpose.
(2000) reported that WUE in wheat can be substantially improved by adopting deficit irrigation to satisfy up to 66% of irrigation requirement
in West Asia and North Africa (WANA) regions.
Of the total irrigation requirement
of 24.24 million cubic metres, 57.6 per cent was to be met with reclaimed water and 42.4 per cent with groundwater.
of the agricultural sector owing to unreliability of the monsoons is driving the growth of this market.
But there is a large year-to-year variability in the irrigation requirement
. When irrigating with 20 mm at a 20-ram trigger deficit, the annual irrigation requirement
ranged from 240 to 480 man/year at Palmerston North, and from 260 to 640 mm/year at Winchmore, due to year-to-year variability in rainfall.
Irrigation treatments which received 25%, 50%, and 75% of the full irrigation requirement
resulted in 13.2%, 45.0%, and 59.0% total fresh biomass reduction respectively (Table 2).
Total surface water availability of the system is 128 BCM out of which 11.01 BCM is the non irrigation requirement
for 2010-11 likely to increase to 18.87 BCM by 2024-25 due to rapid urbanisation and better sense of hygienic conditions.