Abstract
ABSTRACT Cowpea is a legume crop cultivated in diversified production systems, under different conditions of climate, soil, cultivars and technological level. Although the crop is resistant to water stress, lack of moisture in the soil profile during its reproductive stage causes significant losses in its yield. The objective of this study was to calibrate and evaluate the AquaCrop model in the simulation of cowpea yield under water stress in two cropping seasons (rainy and dry) under no-tillage system condition. Experiments were carried out in two cropping seasons (rainy and dry) with five forms of water stress (without water stress, water suspension for 5, 10 and 15 days and rainfed cultivation), under no-tillage system. Regardless of the cowpea cropping season, water stress reduced grain yield and biomass yield, which was more pronounced in the dry season. The Aquacrop model simulated cowpea yield well for the rainy and dry seasons, with root mean square error of 16 and 9.1%, respectively. Aquacrop model showed poor performance for simulation of dry biomass production in both cropping seasons, overestimating the values obtained in the field.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Revista Brasileira de Engenharia Agrícola e Ambiental
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
