Productivity of Tifton 85 grass irrigated and overseeded with winter forages

Éder  Pereira Gomes; Max  Emerson Rickli; Ulysses  Cecato; Camila Viana  Vieira Farhate; Rafael Henrique  de Tonissi e Buschinelli de Goes; Elir  de Oliveira

Productivity of Tifton 85 grass irrigated and overseeded with winter forages

Autores

Éder Pereira Gomes

Max Emerson Rickli

Ulysses Cecato

Camila Viana Vieira Farhate

Rafael Henrique de Tonissi e Buschinelli de Goes

Elir de Oliveira

Editor

Universidade Estadual de Maringá

Descripción

Intercropping with cool season species has been used as an alternative to increase productivity off-season (fall/winter ) of irrigated pastures. This study was conducted from May to October 2009 in Icaraíma, Paraná State, to evaluate the produc tivity and morpho logical compositio n of the Tifton 85 grass overseeded with winter forage in irrigated system. The experiment was a randomized block design with four replicates and repeated me asures over time. The experimental plots consisted of five treatments, three as oats overseeding using the genotypes IAPAR 61, IPR 126, and FMS2 on Tifton 85 pasture and one as overseeding of oats combined with rye (IPR 126 + IPR 89) also on Tifton 85 grass and, finally, a control with only Tifton 85 without overseed ing. The overseeding of IPR 126 oats achieved the hi ghest cumulative productivity, 4102 kg DM ha -1 , with leaf/stem ratio higher than that of exclusive Tifton 85 exclusive, 1.77 and 1.08, respectively. However, overseeding of winter forages did not increase th e overall productivity of the pasture.