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- W2786404002 abstract "Quinoa is a pseudo cereal of South America, grown mainly in the Andean region on the Bolivian and Peruvian Altiplano. Today, about 25000 tons are produced annually in Bolivia, which became the first exporter in the world. However, the Bolivian Altiplano, which has an average altitude of 3800m, is a harsh environment, where the risks of drought and frost during the crop cycle are very important and provoke low crop yields, highly variable from one year to the other. Because of these limiting climatic conditions, germination and emergence are the main critical phases of the culture of quinoa. The objective of this work was to study those phenomena by modeling, through the adaptation of a generic crop model, STICS, to quinoa and climatic and cropping conditions of the Bolivian Altiplano. Data sets were formed through experiments in three sites from north to south of the Altiplano. At first, crop establishment was studied alone, by a numerical experimentation testing various cultural practices, in order to see the adaptation of the cropping system. The second stage is the model calibration. After analyzing the existing formalisms and determining of the need for new ones or modifications, the parameters were set, based on experimental measurements, bibliography or optimization. The results prove to be quite satisfying. Finally, in the third stage, the impact of implantation techniques on yield was tested. Different rotations were also simulated (fallow-quinoa, fallow-fallow-quinoa, or quinoa-quinoa) to see their influence on the water and nitrogen soil balance, crop establishment and crop yield." @default.
- W2786404002 created "2018-02-23" @default.
- W2786404002 creator A5065318196 @default.
- W2786404002 date "2008-05-06" @default.
- W2786404002 modified "2023-09-23" @default.
- W2786404002 title "Quinoa establishment and siùulation of its culture on the Bolivian Aaltiplano" @default.
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