Use of the Time Domain Reflectometry to evaluate the nitrate distribution in fertirrigated soils columns
The monitoring of spatial and temporal variation of the soil water content (θ), of the soil bulk electric conductivity (CEs), of the soil solution electric conductivity (CEss) and of the ion concentration (Ci) enables to estimate the water loss by deep percolation and evapotranspiration, to determin...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
2009-12-01
|
| Series: | Revista Ambiente & Água |
| Subjects: | |
| Online Access: | http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/296 |
| _version_ | 1818449974415851520 |
|---|---|
| author | Rubens Alves de Oliveira Antonio Teixeira de Matos Mauro Aparecido Martinez Marcelo Rocha dos Santos João Henrique Zonta |
| author_facet | Rubens Alves de Oliveira Antonio Teixeira de Matos Mauro Aparecido Martinez Marcelo Rocha dos Santos João Henrique Zonta |
| author_sort | Rubens Alves de Oliveira |
| collection | DOAJ |
| description | The monitoring of spatial and temporal variation of the soil water content (θ), of the soil bulk electric conductivity (CEs), of the soil solution electric conductivity (CEss) and of the ion concentration (Ci) enables to estimate the water loss by deep percolation and evapotranspiration, to determine the areas of nutrients extraction by plants and the possible nutrients loss by leaching. The of objective this work was to evaluate, using the TDR technique, the nitrate distribution in Typic Quartzipsamment (RQ) and Oxisol (LV) soil columns fertirrigated with calcium nitrate. Nitrate fertirrigations were accomplished in the columns, and the soil water content (θ) and the soil bulk electric conductivity (CEs) obtained with TDR. The nitrate concentration was estimated using the values of θ and of CEs. In the RQ soil, the nitrate reached 30, 21 e 12 cm when the fertirrigations were done at the beginning, at the middle and at the end of the irrigation period, respectively. In the LV soil, independently of the moment of the fertirrigation, the nitrate was retained in the layer from 0 to 12 cm deep. |
| first_indexed | 2024-12-14T20:43:56Z |
| format | Article |
| id | doaj.art-ef4ceb78163d49b6b0a551ac4eab7b6d |
| institution | Directory Open Access Journal |
| issn | 1980-993X |
| language | English |
| last_indexed | 2024-12-14T20:43:56Z |
| publishDate | 2009-12-01 |
| publisher | Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) |
| record_format | Article |
| series | Revista Ambiente & Água |
| spelling | doaj.art-ef4ceb78163d49b6b0a551ac4eab7b6d2022-12-21T22:48:10ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2009-12-0143678110.4136/ambi-agua.296Use of the Time Domain Reflectometry to evaluate the nitrate distribution in fertirrigated soils columnsRubens Alves de OliveiraAntonio Teixeira de MatosMauro Aparecido MartinezMarcelo Rocha dos SantosJoão Henrique ZontaThe monitoring of spatial and temporal variation of the soil water content (θ), of the soil bulk electric conductivity (CEs), of the soil solution electric conductivity (CEss) and of the ion concentration (Ci) enables to estimate the water loss by deep percolation and evapotranspiration, to determine the areas of nutrients extraction by plants and the possible nutrients loss by leaching. The of objective this work was to evaluate, using the TDR technique, the nitrate distribution in Typic Quartzipsamment (RQ) and Oxisol (LV) soil columns fertirrigated with calcium nitrate. Nitrate fertirrigations were accomplished in the columns, and the soil water content (θ) and the soil bulk electric conductivity (CEs) obtained with TDR. The nitrate concentration was estimated using the values of θ and of CEs. In the RQ soil, the nitrate reached 30, 21 e 12 cm when the fertirrigations were done at the beginning, at the middle and at the end of the irrigation period, respectively. In the LV soil, independently of the moment of the fertirrigation, the nitrate was retained in the layer from 0 to 12 cm deep.http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/296FertirrigationNitrate movementTDR |
| spellingShingle | Rubens Alves de Oliveira Antonio Teixeira de Matos Mauro Aparecido Martinez Marcelo Rocha dos Santos João Henrique Zonta Use of the Time Domain Reflectometry to evaluate the nitrate distribution in fertirrigated soils columns Revista Ambiente & Água Fertirrigation Nitrate movement TDR |
| title | Use of the Time Domain Reflectometry to evaluate the nitrate distribution in fertirrigated soils columns |
| title_full | Use of the Time Domain Reflectometry to evaluate the nitrate distribution in fertirrigated soils columns |
| title_fullStr | Use of the Time Domain Reflectometry to evaluate the nitrate distribution in fertirrigated soils columns |
| title_full_unstemmed | Use of the Time Domain Reflectometry to evaluate the nitrate distribution in fertirrigated soils columns |
| title_short | Use of the Time Domain Reflectometry to evaluate the nitrate distribution in fertirrigated soils columns |
| title_sort | use of the time domain reflectometry to evaluate the nitrate distribution in fertirrigated soils columns |
| topic | Fertirrigation Nitrate movement TDR |
| url | http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/296 |
| work_keys_str_mv | AT rubensalvesdeoliveira useofthetimedomainreflectometrytoevaluatethenitratedistributioninfertirrigatedsoilscolumns AT antonioteixeiradematos useofthetimedomainreflectometrytoevaluatethenitratedistributioninfertirrigatedsoilscolumns AT mauroaparecidomartinez useofthetimedomainreflectometrytoevaluatethenitratedistributioninfertirrigatedsoilscolumns AT marcelorochadossantos useofthetimedomainreflectometrytoevaluatethenitratedistributioninfertirrigatedsoilscolumns AT joaohenriquezonta useofthetimedomainreflectometrytoevaluatethenitratedistributioninfertirrigatedsoilscolumns |