Establishment of irrigation schedule for rice cropping seasons in the Long Xuyen Quadrangle, Vietnam using Cropwat model.
19/11/18 03:58PM
Truong An Dang. Indian Journal of Agricultural Research, 2018, volume 52, number 4.
Abstract: This study is
conducted to determine the appropriate irrigation water amount for three
main cropping seasons (TMCS) of rice
in the Long Xuyen Quadrangle, Vietnam (LXQ). In the work, the Cropwat
crop model was used to calculate irrigation water amount for
winter-spring (WS), summer-autumn (SA) and autumn-winter (AW) crops
based on meteorological data collected in period from 1998
to 2017. Simulation results carried out that WS crop was needed more
irrigation water than SA and AW crops. The highest irrigation water
requirement (IWR) of WS, SA and AW crops occurred on development stage
with approximately values 207.1 mm, 205.8 mm and
102.3 mm respectively. The results showed that the proposed model is
successfully applied to define crop water requirement (CWR) and
irrigation requirement in the context of climate change leading to
irrigation water scarcity.
