Soil water balance and soybean productivity cultivated under different water deficit levels in South Brazil
The water balance of soil has been studied for several years, due to the detailed information generated and that help in understanding the availability of water in soil to the plants, in the development of agricultural crops and, consequently, in their productivity. The main objective of this work was to evaluate the dynamics of the water balance for the soybean crop [Glycine max (L.) Merrill.] submitted to different levels of water deficit and its impact on crop productivity. The experiment was conducted inside a mobile cover (Rainout shelter) in the period 2014/2015 and 2016, where four treatments with different levels of water deficit were tested: T1 (no water deficit), T2 (light water deficit), T3 moderate water deficit) and T4 (severe water deficit). The experimental design was completely randomized, with three replicates. Water balance variables such as crop evapotranspiration (ETc), irrigation, precipitation, runoff and soil water variation (ΔASW) were monitored daily. The results show an influence of the different levels of deficit irrigation and the meteorological conditions on the components of the water balance, the crop cycle, morphological characteristics and, yield components. A grains yield reduction was observed with the increase in soil water deficit, for treatments without deficit to severe deficit, from 42 to 11,5%, respectively, for year 1 and year 2, respectively
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Facultad de Ciencias Agrarias de la Universidad Nacional de Asunción
2020
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Armoa Báez, María Soledad Petry, Mirta Teresinha Carlesso, Reimar Basso, Laudenir Juciê Rodrigues da Rocha, Marta Rodriguez, Geraldo José |
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Armoa Báez, María Soledad Petry, Mirta Teresinha Carlesso, Reimar Basso, Laudenir Juciê Rodrigues da Rocha, Marta Rodriguez, Geraldo José Soil water balance and soybean productivity cultivated under different water deficit levels in South Brazil |
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Armoa Báez, María Soledad Petry, Mirta Teresinha Carlesso, Reimar Basso, Laudenir Juciê Rodrigues da Rocha, Marta Rodriguez, Geraldo José |
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Armoa Báez, María Soledad |
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Soil water balance and soybean productivity cultivated under different water deficit levels in South Brazil |
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Soil water balance and soybean productivity cultivated under different water deficit levels in South Brazil |
| title_full |
Soil water balance and soybean productivity cultivated under different water deficit levels in South Brazil |
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Soil water balance and soybean productivity cultivated under different water deficit levels in South Brazil |
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Soil water balance and soybean productivity cultivated under different water deficit levels in South Brazil |
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soil water balance and soybean productivity cultivated under different water deficit levels in south brazil |
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The water balance of soil has been studied for several years, due to the detailed information generated and that help in understanding the availability of water in soil to the plants, in the development of agricultural crops and, consequently, in their productivity. The main objective of this work was to evaluate the dynamics of the water balance for the soybean crop [Glycine max (L.) Merrill.] submitted to different levels of water deficit and its impact on crop productivity. The experiment was conducted inside a mobile cover (Rainout shelter) in the period 2014/2015 and 2016, where four treatments with different levels of water deficit were tested: T1 (no water deficit), T2 (light water deficit), T3 moderate water deficit) and T4 (severe water deficit). The experimental design was completely randomized, with three replicates. Water balance variables such as crop evapotranspiration (ETc), irrigation, precipitation, runoff and soil water variation (ΔASW) were monitored daily. The results show an influence of the different levels of deficit irrigation and the meteorological conditions on the components of the water balance, the crop cycle, morphological characteristics and, yield components. A grains yield reduction was observed with the increase in soil water deficit, for treatments without deficit to severe deficit, from 42 to 11,5%, respectively, for year 1 and year 2, respectively |
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Facultad de Ciencias Agrarias de la Universidad Nacional de Asunción |
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2020 |
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https://www.agr.una.py/revista/index.php/ria/article/view/504 |
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oai:ojs.www.agr.una.py:article5042020-09-23T23:08:49Z Soil water balance and soybean productivity cultivated under different water deficit levels in South Brazil Balance hídrico del suelo y productividad de la soja cultivada bajo diferentes niveles de déficit hídrico en el sur de Brasil Balanço hídrico e produtividade da soja cultivada sob diferentes níveis de déficit hídrico no Sul do Brasil Armoa Báez, María Soledad Petry, Mirta Teresinha Carlesso, Reimar Basso, Laudenir Juciê Rodrigues da Rocha, Marta Rodriguez, Geraldo José The water balance of soil has been studied for several years, due to the detailed information generated and that help in understanding the availability of water in soil to the plants, in the development of agricultural crops and, consequently, in their productivity. The main objective of this work was to evaluate the dynamics of the water balance for the soybean crop [Glycine max (L.) Merrill.] submitted to different levels of water deficit and its impact on crop productivity. The experiment was conducted inside a mobile cover (Rainout shelter) in the period 2014/2015 and 2016, where four treatments with different levels of water deficit were tested: T1 (no water deficit), T2 (light water deficit), T3 moderate water deficit) and T4 (severe water deficit). The experimental design was completely randomized, with three replicates. Water balance variables such as crop evapotranspiration (ETc), irrigation, precipitation, runoff and soil water variation (ΔASW) were monitored daily. The results show an influence of the different levels of deficit irrigation and the meteorological conditions on the components of the water balance, the crop cycle, morphological characteristics and, yield components. A grains yield reduction was observed with the increase in soil water deficit, for treatments without deficit to severe deficit, from 42 to 11,5%, respectively, for year 1 and year 2, respectively El balance hídrico del suelo se ha estudiado durante varios años, debido a la información detallada generada y que ayuda a comprender la disponibilidad de agua en el suelo para las plantas, en el desarrollo de cultivos agrícolas y, en consecuencia, en su productividad. El objetivo principal de este trabajo fue evaluar la dinámica del balance hídrico para el cultivo de soja [Glycine max (L.) Merrill.] sometido a diferentes niveles de déficit hídrico y su impacto en la productividad del cultivo. El experimento se realizó dentro de una cubierta móvil (refugio Rainout) en el período 2014/2015 y 2016, donde se probaron cuatro tratamientos con diferentes niveles de déficit de agua: T1 (sin déficit de agua), T2 (déficit de agua ligera), T3 agua moderada déficit) y T4 (déficit hídrico grave). El diseño experimental fue completamente al azar, con tres repeticiones. Las variables de balance hídrico como la evapotranspiración del cultivo (ETc), el riego, la precipitación, la escorrentía y la variación del agua del suelo (ΔASW) se monitorearon diariamente. Los resultados muestran una influencia de los diferentes niveles de riego deficitario y las condiciones meteorológicas en los componentes del balance hídrico, el ciclo del cultivo, las características morfológicas y los componentes del rendimiento. Se observó una reducción del rendimiento de granos con el aumento del déficit hídrico del suelo, para tratamientos sin déficit a déficit severo, del 42 al 11,5%, respectivamente, para el año 1 y el año 2, respectivamente O balanço hídrico do solo tem sido objeto de estudo por vários anos, devido ao detalhamento das informações geradas e que auxiliam no entendimento da disponibilidade de água no solo às plantas, no desenvolvimento das culturas agrícolas e, consequentemente, na produtividade das mesmas. O principal objetivo desse trabalho foi avaliar a dinâmica do balanço hídrico para a cultura da soja [Glycine max (L) Merrill.) submetida a diferentes níveis de déficit hídrico e seu impacto na produtividade da cultura. O experimento foi conduzido no interior de uma cobertura móvel (Rainout shelter), onde foram testados quatro tratamentos com diferentes níveis de déficit hídrico: T1 (Sem déficit hídrico), T2 (Déficit hídrico leve), T3 (Déficit hídrico moderado) e T4 (Déficit hídrico severo). Utilizou-se o delineamento experimental inteiramente casualizado, com três repetições. As variáveis do balanço hídrico como evapotranspiração da cultura (ETc), irrigação, precipitação, escoamento, e variação da água disponível no solo (ΔASW) foram monitoradas diariamente. Os resultados demostram uma influência dos diferentes níveis de irrigação deficitária e as condições meteorológicas sobre os componentes do balanço hídrico, o ciclo da cultura, características morfológicas e componentes de rendimento. Observou-se redução no rendimento de grãos com o aumento do déficit hídrico, do tratamento sem déficit para o déficit severo, de 42 a 11,5%, respectivamente, para o ano 1 e 2. Palavras-chave: soja, extração de água, deficiência hídrica, rendimento de grãos Facultad de Ciencias Agrarias de la Universidad Nacional de Asunción 2020-05-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/epub+zip https://www.agr.una.py/revista/index.php/ria/article/view/504 10.18004/investig.agrar.2020.junio.03-12 Investigación Agraria; Vol. 22 No. 1 (2020): Enero-Junio; 03-12 Investigación Agraria; Vol. 22 Núm. 1 (2020): Enero-Junio; 03-12 Investigación Agraria; v. 22 n. 1 (2020): Enero-Junio; 03-12 2305-0683 1684-9086 por https://www.agr.una.py/revista/index.php/ria/article/view/504/433 https://www.agr.una.py/revista/index.php/ria/article/view/504/442 Derechos de autor 2020 Investigación Agraria https://creativecommons.org/licenses/by/4.0 |