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Idesia (Arica)

versão On-line ISSN 0718-3429

Resumo

OJEDA QUINTANA, Lázaro J.; ARTEAGA RODRIGUEZ, Osvaldo; ESCOBAR ESCOBAR, Lino A.  e  LOPEZ MILIAN, Anaisa. Effect of inoculating the arbuscular mycorrhizal fungi (AMF) and worm humus in establishment of Cenchrus purpureus (Schumach.) Morrone cv. Cuba CT-115. Idesia [online]. 2020, vol.38, n.2, pp.5-11. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292020000200005.

The investigation was carried out in the Experimental Station of Soils “Escambray”, located in the town of Barajagua, municipality of Cumanayagua, in the county of Cienfuegos, region center south of Cuba. The study aims were to determine the yield and quality of the forage of Cenchrus purpureus Sch. cv. Cuba CT-115, inoculated with different arbuscular mycorrhizal fungi (AMF) and the application of worm humus. An experimental block design with completely randomized, six treatments, and three repetitions was used. It was determined the yield of biomass, nitrogen, and phosphorus content in the foliate, gross protein and Efficiency mycorrhizal Index. The yield of biomass was superior with the basal fertilization of NPK, while the worm humus, the species of HMA Funneliformis mosseae, Rhizoglomus irregulare, and Glomus cubense overcame the witness. The higher mycorrhizal efficiency was in the specie Funneliformis mosseae.

Regarding nitrogen content had the more significant in the mineral fertilization, although without differences with Funneliformis mosseae and Rhizoglomus irregulare, these two treatments, in turn, did not differ from the worm humus, and of Glomus cubense. The lowest content was in the witness; contrarily, the phosphorus content did not differ statistically among the treatments. The biggest percentage of gross protein was in the treatment with the mineral fertilization, without differences of Rhizoglomus irregulare and Funneliformis mosseae.The lowest content was in the control group. It is concluded that the inoculation with AMF it overcomes the one overcame in the indicators evaluated the witness, what represents one option for the producers, a smaller economic cost and environmental protection in function of increasing the yield and quality of the Cenchrus purpureus Sch. cv. Cuba, CT-115.

Palavras-chave : biofertilizers; grass forage; yield; gross protein.

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