Effect of potassium fertilization on yield and nutrition of yerba mate (Ilex paraguariensis)
Yerba mate (Ilex paraguariensis) is a tree species native to the subtropical regions of South America, and is found in Brazil predominantly in the southern region. Despite the historical importance in this region, so far, studies on crop nutrition to improve yields are scarce. Thus, this study evalu...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ciência do Solo
2014-10-01
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| Series: | Revista Brasileira de Ciência do Solo |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500012&lng=en&tlng=en |
| _version_ | 1819074625942847488 |
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| author | Delmar Santin Eliziane Luiza Benedetti Nairam Félix de Barros Igor Carvalho de Almeida Greice Pereira Leal Lucas Fontes Júlio César Lima Neves Ivar Wendling Carlos Bruno Reissmann |
| author_facet | Delmar Santin Eliziane Luiza Benedetti Nairam Félix de Barros Igor Carvalho de Almeida Greice Pereira Leal Lucas Fontes Júlio César Lima Neves Ivar Wendling Carlos Bruno Reissmann |
| author_sort | Delmar Santin |
| collection | DOAJ |
| description | Yerba mate (Ilex paraguariensis) is a tree species native to the subtropical regions of South America, and is found in Brazil predominantly in the southern region. Despite the historical importance in this region, so far, studies on crop nutrition to improve yields are scarce. Thus, this study evaluated the effect of potassium rates on K soil availability, and the yield and nutritional status of yerba mate. The experiment was conducted in São Mateus do Sul, State of Paraná, on a Humox soil, where K2O rates of 0, 20, 40, 80, 160, and 320 kg ha-1 were tested on 7-year-old plantations. The experiment was harvested 24 months after installation by removing approximately 95 % of the canopy that had sprouted from the previous harvest. The soil was evaluated for K availability in the layers 0-10, 0-20, 10-20, and 20-40 cm. The plant parts leaf fresh matter (LM), twigs (TW), thick branches (BR) and commercial yerba mate (COYM), i.e., LM+TW, were analyzed. In addition, the relationship between fresh matter/dry matter (FM/DM) and K concentration in LM, AG and BR were evaluated. The fertilization increased K availability in all evaluated soil layers, indicating good mobility of the nutrient even at low rates. Yerba mate responded positively to increasing K2O rates with higher yields of all harvested components. The crop proved K-demanding, with a maximum COYM yield of 28.5 t ha-1, when 72 mg dm-3 K was available in the 0-20 cm layer. Yerba mate in the plant production stage requires soil K availability at medium to high level; in clayey soil with low K availability, a rate of 300 kg ha-1 K2O should be applied at 24 month intervals to obtain high yields. A leaf K concentration of 16.0 g ha-1 is suitable for yerba mate in the growth stage. |
| first_indexed | 2024-12-21T18:12:30Z |
| format | Article |
| id | doaj.art-0b5b0b5a13024b929959c28662803fd8 |
| institution | Directory Open Access Journal |
| issn | 1806-9657 |
| language | English |
| last_indexed | 2024-12-21T18:12:30Z |
| publishDate | 2014-10-01 |
| publisher | Sociedade Brasileira de Ciência do Solo |
| record_format | Article |
| series | Revista Brasileira de Ciência do Solo |
| spelling | doaj.art-0b5b0b5a13024b929959c28662803fd82022-12-21T18:54:45ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572014-10-013851469147710.1590/S0100-06832014000500012S0100-06832014000500012Effect of potassium fertilization on yield and nutrition of yerba mate (Ilex paraguariensis)Delmar Santin0Eliziane Luiza Benedetti1Nairam Félix de Barros2Igor Carvalho de Almeida3Greice Pereira Leal4Lucas Fontes5Júlio César Lima Neves6Ivar Wendling7Carlos Bruno Reissmann8Universidade Federal de Santa CatarinaUniversidade Federal de Santa CatarinaUniversidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade de São PauloUniversidade Federal de ViçosaUniversidade Federal de ViçosaEMBRAPAUniversidade Federal do ParanáYerba mate (Ilex paraguariensis) is a tree species native to the subtropical regions of South America, and is found in Brazil predominantly in the southern region. Despite the historical importance in this region, so far, studies on crop nutrition to improve yields are scarce. Thus, this study evaluated the effect of potassium rates on K soil availability, and the yield and nutritional status of yerba mate. The experiment was conducted in São Mateus do Sul, State of Paraná, on a Humox soil, where K2O rates of 0, 20, 40, 80, 160, and 320 kg ha-1 were tested on 7-year-old plantations. The experiment was harvested 24 months after installation by removing approximately 95 % of the canopy that had sprouted from the previous harvest. The soil was evaluated for K availability in the layers 0-10, 0-20, 10-20, and 20-40 cm. The plant parts leaf fresh matter (LM), twigs (TW), thick branches (BR) and commercial yerba mate (COYM), i.e., LM+TW, were analyzed. In addition, the relationship between fresh matter/dry matter (FM/DM) and K concentration in LM, AG and BR were evaluated. The fertilization increased K availability in all evaluated soil layers, indicating good mobility of the nutrient even at low rates. Yerba mate responded positively to increasing K2O rates with higher yields of all harvested components. The crop proved K-demanding, with a maximum COYM yield of 28.5 t ha-1, when 72 mg dm-3 K was available in the 0-20 cm layer. Yerba mate in the plant production stage requires soil K availability at medium to high level; in clayey soil with low K availability, a rate of 300 kg ha-1 K2O should be applied at 24 month intervals to obtain high yields. A leaf K concentration of 16.0 g ha-1 is suitable for yerba mate in the growth stage.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500012&lng=en&tlng=endisponibilidade de potássio no solomobilidade de potássio no soloeficiência de uso do nutrienteestado nutricional |
| spellingShingle | Delmar Santin Eliziane Luiza Benedetti Nairam Félix de Barros Igor Carvalho de Almeida Greice Pereira Leal Lucas Fontes Júlio César Lima Neves Ivar Wendling Carlos Bruno Reissmann Effect of potassium fertilization on yield and nutrition of yerba mate (Ilex paraguariensis) Revista Brasileira de Ciência do Solo disponibilidade de potássio no solo mobilidade de potássio no solo eficiência de uso do nutriente estado nutricional |
| title | Effect of potassium fertilization on yield and nutrition of yerba mate (Ilex paraguariensis) |
| title_full | Effect of potassium fertilization on yield and nutrition of yerba mate (Ilex paraguariensis) |
| title_fullStr | Effect of potassium fertilization on yield and nutrition of yerba mate (Ilex paraguariensis) |
| title_full_unstemmed | Effect of potassium fertilization on yield and nutrition of yerba mate (Ilex paraguariensis) |
| title_short | Effect of potassium fertilization on yield and nutrition of yerba mate (Ilex paraguariensis) |
| title_sort | effect of potassium fertilization on yield and nutrition of yerba mate ilex paraguariensis |
| topic | disponibilidade de potássio no solo mobilidade de potássio no solo eficiência de uso do nutriente estado nutricional |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500012&lng=en&tlng=en |
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