Productive behavior of perennial ryegrass alone and associated with ovillo grass and white clover
DOI:
https://doi.org/10.29312/remexca.v9i2.1076Keywords:
Dactylis glomerata, Lolium perennial, Trifolium repens, associated meadows, forage yieldAbstract
The perennial ryegrass (Lolium perenne L.) was evaluated in monoculture and four associations with ovillo grass (Dactylis glomerata L.) and white clover (Trifolium repens L.) in different proportions to maximize the yield of dry matter. The proportions in monoculture and the associations of perennial ryegrass, ovillo grass and white clover were: 100:00:00, 70:20:10, 50:00:50, 40:40:20 and 20:70:10, which distributed under a completely randomized block design with three repetitions. The yield of dry matter, botanical and morphological composition, leaf: stem and plant density ratio was evaluated. The association 50:00:50 exceeded 15% (3 671 kg MS ha-1) to the association 70:20:10. The perennial ryegrass contributed more to dry matter yield in autumn and winter, while the ovillo grass and white clover in spring and summer. Regardless of the association, plant density was 29, 25, 20 and 11 m-2 plants for autumn, winter, spring and summer, respectively, with an average plant loss of 62%. The contribution of each species in the botanical composition of the associations was variable during the study period. Perennial ryegrass contributed 46, 40, 29 and 14% in autumn, winter, spring and summer, observing a decrease as the evaluation time elapsed (p< 0.05). The association that obtained the best characteristics of the yield was 50:00:50% of perennial ryegrass, ovillo grass and white clover.
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