Application of the FAO model AquaCrop for estimating crop yield under conditions of soil water deficit stress in the Cambodian lowlands

Soknith Chreok, Chantha Oeurng, Layheang Song, Camilla Vote, Ty Sok, Vanndy Lim, Vang Seng, Philip Eberbach, John Hornbuckle

Research output: Book chapter/Published conference paperConference paper

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The purpose of this study was to test the Aqua Crop model in simulate canopy cover and above ground biomass of maize under three soil water regimes in a semi-humid environment. The trial at the Cambodian Agricultural Research and Development Institute (CARDI), Cambodia, over the 2015-2016 growing season used 3 plots each with three water regimes. The comparison between the observations and simulated values using statistics indicators R2, RMSE, nRMSE, Nash, D, and MBE were 0.93, 10.9%, 46.6%, 0.36, 0.9, and 0.37t/ha for canopy cover (overestimation) and 0.97, 1.91 t/ha, 46.9%, 0.44, 0.89, and 0.43 t/ha (overestimation) for biomass respectively.
Original languageEnglish
Title of host publicationProceedings of the 18th Australian Agronomy Conference, Ballarat, Victoria 24-28 Sptember 2017
Subtitle of host publicationDoing more with less
Place of PublicationAustralia
PublisherAustralian Society of Agronomy
Number of pages4
Publication statusPublished - Sept 2017
Event18th Australian Agronomy Conference 2017 - Mercure Ballarat Hotel & Convention Centre, Ballarat, Australia
Duration: 24 Sept 201728 Sept 2017 (Conference website) (Conference proceedings)


Conference18th Australian Agronomy Conference 2017
Abbreviated titleDoing more with less
OtherThe 18th Australian Agronomy Conference will be held at the Mercure Ballarat Hotel and Convention Centre, Victoria from 24-28 September 2017. The Australian Agronomy Conference is the meeting place for Agronomists; it supports research and the community of Agronomists by connecting Agronomy communities across Australia to each other.

The theme for the 2017 conference is “Doing more with less”. A central plank of Australia’s productive output is agriculture, worth over AUD$13.6 billion exported annually. Agronomy is key to ensuring that farmland is productive across Australia’s diverse landscapes. Innovation in machinery and precision technologies, plant species and varieties, soil and plant management may allow the agronomist of today to successfully help agricultural producers thrive. These innovations are timely as the world deals with increasingly variable climates, environmental degradation, and a more developed global community that requires more diverse products from agriculture.
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  • 0000100914


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