| Autor: |
Cristian Neptalí Arcos-Alvarez, Paola J Lascano-Armas, Raul Victorino Guevara-Viera, Guillermo E Guevara-Viera, Carlos S Torres-Inga, Angel J Aguirre-de-Juana, Rafael A Garzón-Jarrin, Elsa J Molina-Molina |
| Jazyk: |
English<br />Spanish; Castilian |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Tropical and Subtropical Agroecosystems, Vol 24, Iss 2 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1870-0462 |
| DOI: |
10.56369/tsaes.3333 |
| Popis: |
Background. The use of organic fertilization on grasslands is an option on the biological, economic and environmental sense. Objective. In order to evaluate the poultry manure applied as a fertilizer in Kikuyo pastures (Pennisetum clandestinum, Ex Chiov) with grazing cows. Methodology. An experiment was carried out on a 21.6 ha farm in Ecuador, at 2° 13' and 78° 24' South and West, 2651 masl, rainfall of 1103 mm / year). Four fertilization levels corresponding to 0, 50, 100, 150 kg / ha / year, respectively, and load of 1.22 AU / ha were used. Irrigation was applied in the dry season. 21-25 Holstein cows with 526 kg of LW were used. Lactation was of 272 days. The time of occupation of a day and time of rest of 21-28 days. The concentrate offered was 0.4 kg / cow. The persistence of the pastures (%) and their yield per rotation in t ms / ha were determined. Heights and density and samples for dry matter, crude protein and crude fiber (%) were estimated. Milk/cow production data were recorded. ANOVA was used. Costs of the kg of milk produced were determined. Results. The significant differences (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
