Spatio-temporal analysis of water requirement of maize (Zea mays L.) in Haryana state of India

Authors

  • SHALOO Water Technology Centre, ICAR- Indian Agricultural Research Institute, New Delhi - 110012, India
  • HIMANI BISHT Water Technology Centre, ICAR- Indian Agricultural Research Institute, New Delhi - 110012, India
  • BIPIN KUMAR Water Technology Centre, ICAR- Indian Agricultural Research Institute, New Delhi - 110012, India
  • VIJAY KUMAR PRAJAPATI Water Technology Centre, ICAR- Indian Agricultural Research Institute, New Delhi - 110012, India
  • MAN SINGH Water Technology Centre, ICAR- Indian Agricultural Research Institute, New Delhi - 110012, India

DOI:

https://doi.org/10.54386/jam.v25i1.1837

Keywords:

Maize, Crop Water Requirement, Reference Crop Evapotranspiration, Effective Precipitation (Pe), Crop water Surplus Deficit Index (CWSDI) and GIS

Abstract

Climate change  have a considerable impact on crop water demand (ETc). The  present study analyzed the spatio-temporal variation of the crop water requirement (ETc), crop water surplus deficit index (CWSDI), and the coupling degree of ETc and effective precipitation (Pe) for maize (Zea mays L.) crop  grown in  Haryana State of India using ArcMap 10.8 software. ETc was calculated using the Penman-Monteith method and crop coefficient (Kc) approach for 34 years (1985-2018) climatic data. Two statistical models, namely Mann–Kendall test and Sen’s slope estimator, were applied to understand the trend, while Pettitt's test was used to identify abrupt change points by using XLSTAT 2021 software.The result showed that for maize ETc ranged from 571 to 766 mm, CWSDI ranged from -29 to -74% and the degree of coupling of ETc and Pe ranged from 0.26 to 0.71 during 1985-2018. The decadal temporal variation of these indices indicated that ETc during 2007-2018 was relatively higher than it was from 1985-1995 and 1996-2006. The spatio-temporal values of CWSDI indicated that almost all the districts were under water deficit conditions for growing maize crop.Trend analysis showed significantly increasing trend of  CWR for most  of the districts except Jind, Mewat, Palwal, Panchkula, Rewari, Rohtak  and Yamunanagar.The abrupt change point detection analysis of CWR indicates toward different change points, with maximum change points between the years 2004–2008.Such information will help to the farmers in the effective management of water for sustainable production under climate change in the near future.

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Published

17-02-2023

How to Cite

SHALOO, HIMANI BISHT, BIPIN KUMAR, VIJAY KUMAR PRAJAPATI, & MAN SINGH. (2023). Spatio-temporal analysis of water requirement of maize (Zea mays L.) in Haryana state of India . Journal of Agrometeorology, 25(1), 140–144. https://doi.org/10.54386/jam.v25i1.1837

Issue

Vol. 25 No. 1 (2023): March (Silver Jubilee Publication)

Section

Research Paper

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Copyright (c) 2022 SHALOO, HIMANI BISHT, BIPIN KUMAR, VIJAY KUMAR PRAJAPATI, MAN SINGH

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