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| Roma,Cláudio Fabrício da Cruz; Cecato,Ulysses; Soares Filho,Cecílio Viega; Santos,Geraldo Tadeu dos; Ribeiro,Ossival Lolato; Iwamoto,Bruno Shigueo. |
| The objectives of this study were to evaluate morphogenetic characteristics and tillering dynamics in Tanzania grass fertilized and non-fertilized with nitrogen, under intermittent grazing, in the spring and the summer. The main plots were composed of four nitrogen rates (0, 100, 200 and 300 kg/ha) and the subplots were growth seasons: spring (October, November and December) and summer (January, February and March). The experimental design was of randomized block with plots subdivided by time (seasons of the year) and four replications. Urea was used as nitrogen supply and was divided into two applications: one in the spring and another in the summer. The experimental units fertilized with N rates of 200 and 300 kg/ha showed six cycles of pasture, with an... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Intermittent grazing; Leaf appearance rate; Leaf elongation rate; Panicum maximum; Senescence rate. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300013 |
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| ACERO-CAMELO,Amanda; MOLINA,Esteban; PARRA-CORONADO,Alfonso; FISCHER,Gerhard; CARULLA-FORNAGUERA,Juan Evangelista. |
| ABSTRACT In order to estimate the base temperature (Bt) of growth through the appearance of leaves and calculate the phyllochron for kikuyu grass, three plots were established on three farms in the Provincia of Ubaté (Cundinamarca, Colombia) located at different altitudes (2560, 2640, 3143 m. a. s. l.). Measurements were made in four cycles in a period of eight months. The Bt was estimated by the least coefficient of variation method using a second order regression model and the model obtained was validated by the cross-validation method. The Bt values for the first, second, third and fourth leafwere 4.02, 3.68, 3.93, and 3.62 °C, respectively. For the appearance of the first leaf, the kikuyu required more thermal time (TT) (97.5 accumulated growing degree... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth models; Leaf appearance rate; Pennisetum clandestinum; Tropical forage. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2021000200160 |
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| Soares Filho, Cecilio Viega; Cecato, Ulysses; Ribeiro, Ossival Lolato; Roma, Claudio Fabrício da Cruz; Beloni, Tatiane. |
| The morphogenetic and structural characteristics, coupled to forage production of Tanzania grass with nitrogen (N) doses during the seasons of the year, at intermittent grazing, were analyzed. The experimental design consisted of a totally randomized block with split plots and four replications. The plots comprised 0, 150, 300 and 450 kg ha-1 N levels, whereas the sub-plots were the seasons. Urea was applied three times on the pasture and had a positive effect on the rates of leaf elongation and emergence and on the number of live leaves of Tanzania grass in the spring and summer. High nitrogen fertilization associated with shorter grazing intervals triggered a higher percentage of leaf blades in the management of Tanzania grass under rotational stocking... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.04.00-8 Panicum maximum; Grazing; Leaf appearance rate; Leaf elongation rate; Urea. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27101 |
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