Biopores, soil decompacting potential, and biomass of Brachiaria cultivars
ABSTRACT Grasses of the Brachiaria genus are widely used as cover crops in no-tillage areas of the Brazilian Cerrado. This study aimed to evaluate the ability of six Brachiaria cultivars to produce shoot and root biomass, and the potential of the root system to grow through a 0.01 m thick wax layer...
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Sociedade Brasileira de Ciência do Solo
2025-03-01
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| Series: | Revista Brasileira de Ciência do Solo |
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| author | Milson Evaldo Serafim Samara Martins Barbosa Walmes Marques Zeviani Eduardo da Costa Severiano Kátia Aparecida de Pinho Costa Luciano Recart Romano Bruno Montoani Silva |
| author_facet | Milson Evaldo Serafim Samara Martins Barbosa Walmes Marques Zeviani Eduardo da Costa Severiano Kátia Aparecida de Pinho Costa Luciano Recart Romano Bruno Montoani Silva |
| author_sort | Milson Evaldo Serafim |
| collection | DOAJ |
| description | ABSTRACT Grasses of the Brachiaria genus are widely used as cover crops in no-tillage areas of the Brazilian Cerrado. This study aimed to evaluate the ability of six Brachiaria cultivars to produce shoot and root biomass, and the potential of the root system to grow through a 0.01 m thick wax layer with 1.5 MPa penetration resistance. The plants were grown in PVC columns with a diameter of 0.1 m and a height of 0.7 m. The column was divided into an upper part measuring 0.25 m (top) and a lower part measuring 0.45 m (bottom). The wax layer was positioned between the two parts of the column as a physical barrier to be perforated by the roots. The columns were filled with peaty substrate. The Brachiaria cultivars used were: Brachiaria brizantha cv. BRS Piatã, Brachiaria decumbens cv. Basilisk, Brachiaria brizantha cv. BRS Paiaguás, Brachiaria ruziziensis cv. Ruziziensis, Brachiaria brizantha cv. Xaraés and Brachiaria brizantha cv. Marandu. The Ruziziensis cultivar accumulated a high root dry mass, but the Xaraés cultivar presented the highest wax layer perforation capacity (80 %). Decumbens is the species with the lowest wax layer perforation capacity (10 %). Brachiaria species and cultivars demonstrated differences in their responses to high root penetration ability, which can be used for recommended different species of Brachiaria in different proposes used changes in shoot, leaves, and root dry matter and the distribution of roots in the soil column profile. Xaraés cultivar has potential to be used as a management strategy in soil recovery for degraded lands with mechanical impedance. |
| format | Article |
| id | doaj-art-add627f7418e4adcb9e49e7ebe2c0fe8 |
| institution | OA Journals |
| issn | 1806-9657 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Sociedade Brasileira de Ciência do Solo |
| record_format | Article |
| series | Revista Brasileira de Ciência do Solo |
| spelling | doaj-art-add627f7418e4adcb9e49e7ebe2c0fe82025-08-20T02:26:00ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572025-03-014910.36783/18069657rbcs20240079Biopores, soil decompacting potential, and biomass of Brachiaria cultivarsMilson Evaldo Serafimhttps://orcid.org/0000-0002-2400-7712Samara Martins Barbosahttps://orcid.org/0000-0002-3707-8480Walmes Marques Zevianihttps://orcid.org/0000-0001-5503-8565Eduardo da Costa Severianohttps://orcid.org/0000-0002-6408-5061Kátia Aparecida de Pinho Costahttps://orcid.org/0000-0002-9555-5089Luciano Recart Romanohttps://orcid.org/0009-0004-2121-4005Bruno Montoani Silvahttps://orcid.org/0000-0002-8240-8987ABSTRACT Grasses of the Brachiaria genus are widely used as cover crops in no-tillage areas of the Brazilian Cerrado. This study aimed to evaluate the ability of six Brachiaria cultivars to produce shoot and root biomass, and the potential of the root system to grow through a 0.01 m thick wax layer with 1.5 MPa penetration resistance. The plants were grown in PVC columns with a diameter of 0.1 m and a height of 0.7 m. The column was divided into an upper part measuring 0.25 m (top) and a lower part measuring 0.45 m (bottom). The wax layer was positioned between the two parts of the column as a physical barrier to be perforated by the roots. The columns were filled with peaty substrate. The Brachiaria cultivars used were: Brachiaria brizantha cv. BRS Piatã, Brachiaria decumbens cv. Basilisk, Brachiaria brizantha cv. BRS Paiaguás, Brachiaria ruziziensis cv. Ruziziensis, Brachiaria brizantha cv. Xaraés and Brachiaria brizantha cv. Marandu. The Ruziziensis cultivar accumulated a high root dry mass, but the Xaraés cultivar presented the highest wax layer perforation capacity (80 %). Decumbens is the species with the lowest wax layer perforation capacity (10 %). Brachiaria species and cultivars demonstrated differences in their responses to high root penetration ability, which can be used for recommended different species of Brachiaria in different proposes used changes in shoot, leaves, and root dry matter and the distribution of roots in the soil column profile. Xaraés cultivar has potential to be used as a management strategy in soil recovery for degraded lands with mechanical impedance.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832025000100602&lng=en&tlng=enBrachiaria grasscover cropsforage productionpenetration resistancehard paraffin disk |
| spellingShingle | Milson Evaldo Serafim Samara Martins Barbosa Walmes Marques Zeviani Eduardo da Costa Severiano Kátia Aparecida de Pinho Costa Luciano Recart Romano Bruno Montoani Silva Biopores, soil decompacting potential, and biomass of Brachiaria cultivars Revista Brasileira de Ciência do Solo Brachiaria grass cover crops forage production penetration resistance hard paraffin disk |
| title | Biopores, soil decompacting potential, and biomass of Brachiaria cultivars |
| title_full | Biopores, soil decompacting potential, and biomass of Brachiaria cultivars |
| title_fullStr | Biopores, soil decompacting potential, and biomass of Brachiaria cultivars |
| title_full_unstemmed | Biopores, soil decompacting potential, and biomass of Brachiaria cultivars |
| title_short | Biopores, soil decompacting potential, and biomass of Brachiaria cultivars |
| title_sort | biopores soil decompacting potential and biomass of brachiaria cultivars |
| topic | Brachiaria grass cover crops forage production penetration resistance hard paraffin disk |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832025000100602&lng=en&tlng=en |
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