Journal of Food, Agriculture and Environment

Simulating paddy crop response to irrigation using FAO AquaCrop model: A case study

Author(s):

Ranu Rani Sethi ¹*, Krishna Gopal Mandal ¹, Arjamadutta Sarangi ², Anuradha Behera ¹, Rajan Aggarwal ³, Ajmer Singh Brar ³, Amiya Sagar Sahu ¹, Kali Kinkar Bandyopadhyay ², Sunil Kumar Ambast ¹

Recieved Date: 2015-11-24, Accepted Date: 2016-03-22

Abstract:

Crop production is directly related to the water used, which is a major constraint to meet food security for the growing population nowadays. Attempts were made to understand the response of paddy to irrigation by using the FAO AquaCrop model for crop yield data of 8-years. Weather parameters were analyzed for paddy crop growing period to validate the model; crop parameters were calibrated for paddy variety of 120 days duration in Ludhiana, India. Reference evapotranspiration (ET₀) and irrigation schedule (718-1048.1 mm) was decided by using ET₀ calculator and CROPWAT model, respectively. The simulated yield (3.80-4.53 t ha^-1) was validated with the actual yield (3.53-4.63 t ha^-1) with water use efficiency (3.1-3.7 kg ha^-1 mm^-1), obtained during the years of observation. The model was evaluated with the percentage error of 0.59, root mean square error of 0.064, mean absolute error of 0.06 indicating higher accuracy of the calibrated model. Thus the model would be useful for predicting the paddy crop yield, irrigation water productivity under different irrigation scenarios.

Keywords:

Paddy, irrigation, yield, simulation, FAO AquaCrop, CROPWAT

---

Journal: Journal of Food, Agriculture and Environment
Year: 2016
Volume: 14
Issue: 2
Category: Agriculture
Pages: 99-103

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :