The Use of Aquacrop Model for Soybean in Various Water Availability Within a Lysimeter System


Farchan Mushaf Al Ramadhani
Cahyoadi Bowo
Slameto Slameto


The AquaCrop model is widely used under various agro-ecological conditions to reduce farm water consumption. The study aimed to simulate, validate, and measure the performance of AquaCrop models for canopy cover, biomass and soybean crop yields cultivated within a lysimeter. This research was conducted in the experimental field of the Faculty of Agriculture, the University of Jember, Indonesia (8°09'45.1" S, 113°42'58.2" E, 101 m a.s.l). There are four treatments in 4 lysimeters, namely P1 (irrigation based on recommendation), P2 (irrigation 95-105% FC), P3 (irrigation 75-85% FC) and P4 (irrigation 55-65% FC). The AquaCrop model is calibrated using canopy cover (CC) and then validated to predict the biomass and soybean yield. The experiment revealed that the model simulates better CC, biomass, and soybean yields with full irrigation than deficit irrigation. The performance of the AquaCrop model for soybeans of the Deja 2 variety in predicting CC, biomass, and soybean yield is impressive and reasonable. For the CC we found R2 ranges from 0.956 to 0.995, RMSE 10.389% to 3,293%, NRMSE 0.154% to 0.051%, NSE 0.918 to 0.992, and d 0.980 to 0.998. For biomass the R2 is 0.842, RMSE 0.111 t ha-1, NRMSE 0.017%, NSE 0.712, and d 0.937. For soybeans production the R2 is 0.999, RMSE 0.045  t.ha-1, NRMSE 0.018%,, NSE 0.908 and d 0.970. This study demonstrated that based on WUE, 55-65% FC irrigation is the most efficient application.


Author Biographies

Farchan Mushaf Al Ramadhani, University of Pekalongan

Department of Agrotechnology

Cahyoadi Bowo, University of Jember

Department of Soil Science

Slameto Slameto, University of Jember

Department of Agronomy

How to Cite
Ramadhani, F. M. A., Bowo, C. ., & Slameto, S. (2023). The Use of Aquacrop Model for Soybean in Various Water Availability Within a Lysimeter System. Journal of Applied Agricultural Science and Technology, 7(4), 399-413.


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