Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego
Rice cultivation has become one of the essential cereals in the diet of the world population and of great economic importance for its producers. Currently in Ecuador, rice production is focused on meeting the food needs of the population, which is why intensive rice production has led to soil degrad...
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| Váldodahkki: | |
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| Materiálatiipa: | bachelorThesis |
| Almmustuhtton: |
2020
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| Fáttát: | |
| Liŋkkat: | http://dspace.utb.edu.ec/handle/49000/7998 |
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Lasit fáddágilkoriid | _version_ | 1839387018006626304 |
|---|---|
| author | Soriano Albán, Jonathan Abrahán |
| author_facet | Soriano Albán, Jonathan Abrahán |
| author_role | author |
| collection | Repositorio Universidad Técnica de Babahoyo |
| dc.contributor.none.fl_str_mv | Sánchez Jaime, Luis Enrique |
| dc.creator.none.fl_str_mv | Soriano Albán, Jonathan Abrahán |
| dc.date.none.fl_str_mv | 2020-05-29T05:23:18Z 2020-05-29T05:23:18Z 2020 |
| dc.format.none.fl_str_mv | 26 p. application/pdf |
| dc.identifier.none.fl_str_mv | http://dspace.utb.edu.ec/handle/49000/7998 |
| dc.language.none.fl_str_mv | es |
| dc.publisher.none.fl_str_mv | BABAHOYO: UTB, 2020 |
| dc.rights.none.fl_str_mv | Atribución-NoComercial-SinDerivadas 3.0 Ecuador http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositorio Universidad Técnica de Babahoyo instname:Universidad Técnica de Babahoyo instacron:UTB |
| dc.subject.none.fl_str_mv | Cultivo de arroz Fertilización nitrogenada Aprovechamiento Pérdida |
| dc.title.none.fl_str_mv | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/bachelorThesis |
| description | Rice cultivation has become one of the essential cereals in the diet of the world population and of great economic importance for its producers. Currently in Ecuador, rice production is focused on meeting the food needs of the population, which is why intensive rice production has led to soil degradation due to poor practices. This cereal faces three main problems which are: loss of soil quality due to monoculture, climate change and scarcity of water resources, despite the fact that rice has wide adaptability to a wide range of soils in the country it is produced under two conditions which are: rainfed conditions and conditions under irrigation. The best use of the crop is obtained under irrigated conditions while the rainfed crop is affected by climatic changes. Practices such as irrigation and nitrogen fertilization are indispensable factors in rice production, the release and assimilation of N in the soil depends on the recalcitrance and resistance of organic matter (OM), with OM being the most important source of N in the rice cultivation, independent of the nitrogen fertilization, the irrigated rice production presents several factors that allow the loss of N and a poor efficiency of the nitrogen fertilization. When urea is applied in flooded soils, the loss of N is 80%, so raising the dose does not guarantee higher production; but on the other hand, a good dosage and proper application guarantee us a better use of N by the plant. Currently, there is a large line of controlled release fertilizers on the market that allows us to obtain a better use of N, but practices such as dry fertilization and after a period of 48 hours, flooding the crop allows us to minimize the loss of nutrient due to volatilization and leaching. |
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| oai_identifier_str | oai:dspace.utb.edu.ec:49000/7998 |
| publishDate | 2020 |
| publisher.none.fl_str_mv | BABAHOYO: UTB, 2020 |
| reponame_str | Repositorio Universidad Técnica de Babahoyo |
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| repository.name.fl_str_mv | Repositorio Universidad Técnica de Babahoyo - Universidad Técnica de Babahoyo |
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| rights_invalid_str_mv | Atribución-NoComercial-SinDerivadas 3.0 Ecuador http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ |
| spelling | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riegoSoriano Albán, Jonathan AbrahánCultivo de arrozFertilización nitrogenadaAprovechamientoPérdidaRice cultivation has become one of the essential cereals in the diet of the world population and of great economic importance for its producers. Currently in Ecuador, rice production is focused on meeting the food needs of the population, which is why intensive rice production has led to soil degradation due to poor practices. This cereal faces three main problems which are: loss of soil quality due to monoculture, climate change and scarcity of water resources, despite the fact that rice has wide adaptability to a wide range of soils in the country it is produced under two conditions which are: rainfed conditions and conditions under irrigation. The best use of the crop is obtained under irrigated conditions while the rainfed crop is affected by climatic changes. Practices such as irrigation and nitrogen fertilization are indispensable factors in rice production, the release and assimilation of N in the soil depends on the recalcitrance and resistance of organic matter (OM), with OM being the most important source of N in the rice cultivation, independent of the nitrogen fertilization, the irrigated rice production presents several factors that allow the loss of N and a poor efficiency of the nitrogen fertilization. When urea is applied in flooded soils, the loss of N is 80%, so raising the dose does not guarantee higher production; but on the other hand, a good dosage and proper application guarantee us a better use of N by the plant. Currently, there is a large line of controlled release fertilizers on the market that allows us to obtain a better use of N, but practices such as dry fertilization and after a period of 48 hours, flooding the crop allows us to minimize the loss of nutrient due to volatilization and leaching.Rice cultivation has become one of the essential cereals in the diet of the world population and of great economic importance for its producers. Currently in Ecuador, rice production is focused on meeting the food needs of the population, which is why intensive rice production has led to soil degradation due to poor practices. This cereal faces three main problems which are: loss of soil quality due to monoculture, climate change and scarcity of water resources, despite the fact that rice has wide adaptability to a wide range of soils in the country it is produced under two conditions which are: rainfed conditions and conditions under irrigation. The best use of the crop is obtained under irrigated conditions while the rainfed crop is affected by climatic changes. Practices such as irrigation and nitrogen fertilization are indispensable factors in rice production, the release and assimilation of N in the soil depends on the recalcitrance and resistance of organic matter (OM), with OM being the most important source of N in the rice cultivation, independent of the nitrogen fertilization, the irrigated rice production presents several factors that allow the loss of N and a poor efficiency of the nitrogen fertilization. When urea is applied in flooded soils, the loss of N is 80%, so raising the dose does not guarantee higher production; but on the other hand, a good dosage and proper application guarantee us a better use of N by the plant. Currently, there is a large line of controlled release fertilizers on the market that allows us to obtain a better use of N, but practices such as dry fertilization and after a period of 48 hours, flooding the crop allows us to minimize the loss of nutrient due to volatilization and leaching.El cultivo de arroz se ha convertido en uno de los cereales indispensable en la dieta de la población mundial y de mucha importancia económica para sus productores. Actualmente en el Ecuador la producción de arroz está enfocada en solventar las necesidades alimentarias de la población, por lo que la intensiva producción de arroz a con llevado a la degradación de los suelo a causa de la malas prácticas implementadas. Este cereal enfrenta tres principales problemáticas las que son: perdida de la calidad de los suelos a causa del monocultivo, cambio climático y escases de recursos hídricos, pese a que el arroz posee amplia adaptabilidad a una gran gama de suelos en el país se produce bajo dos condiciones las que son: condiciones de secano y condiciones bajo riego. El mayor aprovechamiento del cultivo se obtiene en condiciones bajo riego mientas que en condiciones de secano el cultivo está afectado por los cambios climáticos. Prácticas como el riego y la fertilización nitrogenada son factores indispensables en la producción del arroz, la liberación y asimilación del N en el suelo depende de la recalcitrancia y resistencia de la materia orgánica (MO), siendo la MO la fuente de N más importante del cultivo de arroz, independiente de la fertilización nitrogenada, la producción de arroz bajo riego presenta varios factores que permiten la pérdida del N y una mala eficiencia de la fertilización nitrogenada. Cuando se aplica urea en suelos inundados la pérdida de N es de un 80%, por lo que elevar la dosis no garantiza una mayor producción; pero por otro lado una buena dosificación y aplicación adecuada nos garantiza un mayor aprovechamiento del N por la planta. En la actualidad en el mercado existe una gran línea de fertilizantes de liberación controlada que nos permite obtener un mayor aprovechamiento del N, pero prácticas como fertilizar en seco y luego de un lapso de 48 horas realizar la inundación del cultivo nos permite minimizar la pérdida del nutriente a causa de la volatilización y lixiviación.BABAHOYO: UTB, 2020Sánchez Jaime, Luis Enrique2020-05-29T05:23:18Z2020-05-29T05:23:18Z2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesis26 p.application/pdfhttp://dspace.utb.edu.ec/handle/49000/7998esAtribución-NoComercial-SinDerivadas 3.0 Ecuadorhttp://creativecommons.org/licenses/by-nc-nd/3.0/ec/info:eu-repo/semantics/openAccessreponame:Repositorio Universidad Técnica de Babahoyoinstname:Universidad Técnica de Babahoyoinstacron:UTB2022-02-08T08:04:28Zoai:dspace.utb.edu.ec:49000/7998Institucionalhttp://dspace.utb.edu.ec/Universidad públicahttps://utb.edu.ec/http://dspace.utb.edu.ec/oai.Ecuador...opendoar:02022-02-08T08:04:28Repositorio Universidad Técnica de Babahoyo - Universidad Técnica de Babahoyofalse |
| spellingShingle | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego Soriano Albán, Jonathan Abrahán Cultivo de arroz Fertilización nitrogenada Aprovechamiento Pérdida |
| status_str | publishedVersion |
| title | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego |
| title_full | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego |
| title_fullStr | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego |
| title_full_unstemmed | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego |
| title_short | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego |
| title_sort | Dinámica del Nitrógeno en suelos cultivados con arroz bajo riego |
| topic | Cultivo de arroz Fertilización nitrogenada Aprovechamiento Pérdida |
| url | http://dspace.utb.edu.ec/handle/49000/7998 |