Influence of sowing different varieties of improved grasses on the control of wiregrass (Sporobolus indicus L R.Br.)

Contenido principal del artículo

Migdelis Lorenzo
C?sar Padilla
Yurangel Sardi?a
Gustavo Febles

Resumen

In a grassland of common guinea grass (Panicum maximum, Jacq), damaged and invaded by the wiregrass (Sporobolus indicus), the influence of sowing different varieties of improved grasses on the control of wiregrass was studied. The treatments were distributed in a random block design with four replicates: a) plantation of Pennisetum purpureum cv. Cuba CT-115, b) plantation of Cynodon nlemfuensis cv. Star grass, c) sowing of Brachiaria decumbens cv. Basilisk, d) sowing of Panicum maximum cv. Likoni and f) sowing of Panicum maximum cv. Mombaza. At the begining, there were no significant differences on the population and height of the wiregrass. Its population was reduced from 7 to less than 0.9 plant/ m2 at the end of the experiment in all treatments. In the two samplings conducted with the variaties sown, the highest pasture height (P < 0.001) was found in Cuba CT-115 and the lowest values were presented in star grass and brachiaria. At the end of the experiment, the lowest (P < 0.01) population of wiregrass (0.26 plants/m2) was presented where sowing guinea Likoni. The number of tillers/plant of wiregrass was lower when brachiaria was planted, without differing from the treatments where CT-115 or guinea Likoni were sown. Guinea Mombaza and Cuba CT-115 were the variaties less invaded by weeds in general and ended with more than 98 % of pureness. Star grass and brachiaria had less than 50 % of pureness. Guinea Likoni had an intermediate performance. The highest biomass production (P < 0.001) and the lowest (P < 0.001) cost/t/ha of GM and DM produced were reached when Cuba CT-115 was planted. An intermediate value for this measurement was achieved in Guinea Mombaza. The results of this study indicate that the use of improved pastures could be an option for the control of wiregrass by renewing or with new sowings. A good agrotechnical management is recommended as well as taking care of the soil fertility after controlling the wiregrass.
Key words: Sporobolus indicus, weeds control, improved pastrues.

Detalles del artículo

Cómo citar
Lorenzo, M., Padilla, C., Sardi?a, Y., & Febles, G. (2013). Influence of sowing different varieties of improved grasses on the control of wiregrass (Sporobolus indicus L R.Br.). Cuban Journal of Agricultural Science, 47(1). Recuperado a partir de https://cjascience.com/index.php/CJAS/article/view/260
Sección
Ciencia de los pastos y otros cultivos
Biografía del autor/a

Migdelis Lorenzo

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

C?sar Padilla

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

Yurangel Sardi?a

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cub

Gustavo Febles

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cub

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