Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems
The objective of this study was to evaluate the soil total nitrogen (TN), and N contents in humic substances (HS) of the organic matter in aggregates of soils cultivated with onion under no-till system for horticulture (NTSH) and conventional tillage system (CTS), comparing with an area of forest. T...
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| Format: | Online |
| Language: | eng |
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Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC
2018
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7339 |
| _version_ | 1801706275301490688 |
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| author | Santos, Luiz Henrique dos Loss, Arcângelo Lourenzi, Cledimar Rogério Souza, Monique Gonzatto, Rogério Kurtz, Claudinei Brunetto, Gustavo Comin, Jucinei José |
| author_facet | Santos, Luiz Henrique dos Loss, Arcângelo Lourenzi, Cledimar Rogério Souza, Monique Gonzatto, Rogério Kurtz, Claudinei Brunetto, Gustavo Comin, Jucinei José |
| author_sort | Santos, Luiz Henrique dos |
| collection | OJS |
| description | The objective of this study was to evaluate the soil total nitrogen (TN), and N contents in humic substances (HS) of the organic matter in aggregates of soils cultivated with onion under no-till system for horticulture (NTSH) and conventional tillage system (CTS), comparing with an area of forest. The evaluated treatments were natural vegetation (control), 100% black oats, 100% rye, 100% oilseed radish, intercrop of oilseed (14%) + rye (86%), intercrop of oilseed (14%) + black oats (86%), area under CTS of onion for ±37 years, and area with secondary forest for ±30 years. Five years after the NTSH implementation, undisturbed soil samples from the layers 0-5 cm, 5-10 cm, and 10-20 cm were collected; these samples presented aggregate sizes between 2.0 mm and 8.00 mm. The TN, and N contents of the HS were subdivided into fulvic acids (N-FA), humic acids (N-HA), and humin (N-HU) fractions. The change from CTS to NTSH increases the TN and N-HU contents in the 0-5 cm soil layer. The intercrop of oats and oilseed radish, used as soil plant cover species in NTSH, presented a greater increase in N-HU (0-20 cm) than the other treatments. Black oats, and natural vegetation presented a greater increased in N-HA, and N-FA contents, respectively, in the 10-20 cm layer, than the other treatments in NTSH and CTS. CTS with millet as soil plant cover presented a greater increase in N-FA (0-20 cm) contents than the NTSH treatments. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-7339 |
| institution | Revista Colombiana de Ciencias Hortícolas |
| language | eng |
| publishDate | 2018 |
| publisher | Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-73392020-08-03T23:56:44Z Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems Nitrógeno total y sustancias húmicas en agregados del suelo cultivado con cebolla bajo siembra directa y preparación convencional Santos, Luiz Henrique dos Loss, Arcângelo Lourenzi, Cledimar Rogério Souza, Monique Gonzatto, Rogério Kurtz, Claudinei Brunetto, Gustavo Comin, Jucinei José Allium cepa L. cover plants aggregation humic acids soil nitrogen tillage system. SB320-353.5 S622-627 Allium cepa L. plantas de cobertura agregación ácidos húmicos nitrógeno del suelo sistemas de labranza. SB320-353.5 S622-627 The objective of this study was to evaluate the soil total nitrogen (TN), and N contents in humic substances (HS) of the organic matter in aggregates of soils cultivated with onion under no-till system for horticulture (NTSH) and conventional tillage system (CTS), comparing with an area of forest. The evaluated treatments were natural vegetation (control), 100% black oats, 100% rye, 100% oilseed radish, intercrop of oilseed (14%) + rye (86%), intercrop of oilseed (14%) + black oats (86%), area under CTS of onion for ±37 years, and area with secondary forest for ±30 years. Five years after the NTSH implementation, undisturbed soil samples from the layers 0-5 cm, 5-10 cm, and 10-20 cm were collected; these samples presented aggregate sizes between 2.0 mm and 8.00 mm. The TN, and N contents of the HS were subdivided into fulvic acids (N-FA), humic acids (N-HA), and humin (N-HU) fractions. The change from CTS to NTSH increases the TN and N-HU contents in the 0-5 cm soil layer. The intercrop of oats and oilseed radish, used as soil plant cover species in NTSH, presented a greater increase in N-HU (0-20 cm) than the other treatments. Black oats, and natural vegetation presented a greater increased in N-HA, and N-FA contents, respectively, in the 10-20 cm layer, than the other treatments in NTSH and CTS. CTS with millet as soil plant cover presented a greater increase in N-FA (0-20 cm) contents than the NTSH treatments. Se evaluaron los niveles de nitrógeno total (NT) y N de las sustancias húmicas (SH) de la materia orgánica en agregados de suelo cultivado con cebolla bajo siembra directa de hortalizas (SDH) y sistema de preparación convencional (SPC), comparando con un área de bosque. Los tratamientos evaluados fueron: vegetación espontánea; 100% avena; 100% centeno; 100% nabo; cultivos asociados de nabo (14%) + centeno (86%); cultivos asociados de nabo (14%) + avena (86%); área bajo SPC de cebolla (±37 años) y de bosque secundario de ±30 años). Cinco años después de la implantación del SDH fueran recogidas muestras no disturbados del suelo en las capas 0-5, 5-10 y 10-20 cm y obtenidos los agregados (entre 2,0 y 8,00 mm). En estos se determinaron los niveles de NT y el N de las SH, subdivididos en fracción ácidos fúlvicos (N-FAF), ácidos húmicos (N-FAH) y humina (N-HUM). La conversión de áreas de SPC a SDH favorece el aumento de los niveles de NT y N-HUM en la capa de 0-5 cm. Entre las especies de plantas de cobertura utilizadas en el SDH, los cultivos asociados de avena + nabo favorecieron el aumento del N-HUM (0-20 cm) en comparación a los demás tratamientos. La avena solo y el control con vegetación espontánea aumentaron los niveles de N-FAH y N-FAF, respectivamente, en la capa de 10-20 cm, en comparación a los demás tratamientos en SDH y SPC. El SPC con mijo como planta de cobertura aumentó los niveles de N-FAF (0-20 cm) en comparación con el SDH. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2018-05-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Experimental Experimental application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7339 10.17584/rcch.2018v12i1.7339 Revista Colombiana de Ciencias Hortícolas; Vol. 12 No. 1 (2018); 166-174 Revista Colombiana de Ciencias Hortícolas; Vol. 12 Núm. 1 (2018); 166-174 Revista Colombiana de Ciencias Hortícolas; Vol. 12 No 1 (2018); 166-174 Revista Colombiana de Ciencias Hortícolas; V. 12 N. 1 (2018); 166-174 Revista Colombiana de Ciencias Hortícolas; v. 12 n. 1 (2018); 166-174 2422-3719 2011-2173 eng https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7339/pdf |
| spellingShingle | Allium cepa L. cover plants aggregation humic acids soil nitrogen tillage system. SB320-353.5 S622-627 Allium cepa L. plantas de cobertura agregación ácidos húmicos nitrógeno del suelo sistemas de labranza. SB320-353.5 S622-627 Santos, Luiz Henrique dos Loss, Arcângelo Lourenzi, Cledimar Rogério Souza, Monique Gonzatto, Rogério Kurtz, Claudinei Brunetto, Gustavo Comin, Jucinei José Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems |
| title | Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems |
| title_alt | Nitrógeno total y sustancias húmicas en agregados del suelo cultivado con cebolla bajo siembra directa y preparación convencional |
| title_full | Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems |
| title_fullStr | Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems |
| title_full_unstemmed | Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems |
| title_short | Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems |
| title_sort | total nitrogen and humic substances in aggregates of soils with onion crops under no tillage and conventional tillage systems |
| topic | Allium cepa L. cover plants aggregation humic acids soil nitrogen tillage system. SB320-353.5 S622-627 Allium cepa L. plantas de cobertura agregación ácidos húmicos nitrógeno del suelo sistemas de labranza. SB320-353.5 S622-627 |
| topic_facet | Allium cepa L. cover plants aggregation humic acids soil nitrogen tillage system. SB320-353.5 S622-627 Allium cepa L. plantas de cobertura agregación ácidos húmicos nitrógeno del suelo sistemas de labranza. SB320-353.5 S622-627 |
| url | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/7339 |
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