Seasonal alteration in sward height of Marandu palisade grass (Brachiaria brizantha) pastures managed by continuous grazing interferes with forage production
| Autor: | Flávia Maria de Andrade Gimenes, Waldssimiler Teixeira de Mattos, Suleize Rocha Terra, Alessandra Aparecida Giacomini, Luciana Gerdes, Marisa Xavier Manço, Karina Batista |
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| Rok vydání: | 2020 |
| Předmět: |
Seasonal distribution
0402 animal and dairy science Palisade grass Tiller (botany) Forage 04 agricultural and veterinary sciences Plant Science Biology Seasonality biology.organism_classification medicine.disease 040201 dairy & animal science Brachiaria Animal science Grazing 040103 agronomy & agriculture medicine 0401 agriculture forestry and fisheries Secondary forest Agronomy and Crop Science |
| Zdroj: | Crop and Pasture Science. 71:285 |
| ISSN: | 1836-0947 |
| DOI: | 10.1071/cp19156 |
| Popis: | Changes in sward height of pastures managed by continuous grazing according to climatic seasonality may alter tillering and forage production. In order to evaluate the feasibility of seasonal alteration in sward height of Marandu palisade grass pastures (Brachiaria brizantha (Hochst. ex A.Rich.) R.D. Webster; syn. Urochloa brizantha (A.Rich.) Stapf) under continuous grazing management, we studied two constant sward heights (15 cm and 30 cm), and one height that was initiated at 30 cm, reduced to 15 cm in June (dry and cold season) and returned to 30 cm in December (wet and hot season) (30–15–30 cm). Pastures managed at 30–15–30 cm had a greater tiller appearance rate (22 tillers/100 tillers.30 days) than those maintained at 15 cm and 30 cm (16 and 17 tillers/100 tillers.30 days, respectively). In the 30–15–30 cm pastures, a lower accumulation rate of dead material was observed during the dry and cold season (June–August), which resulted in a higher leaf and lower dead material accumulation rate during the second growth season (wet and hot season, December–January). Planned reduction in sward height during the cold season can be used safely because it permits better seasonal distribution and utilisation of forage production without compromising the stability of Marandu palisade grass pastures. |
| Databáze: | OpenAIRE |
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