SCIENCE@home

Uso de Azospirrillum spp. como biofertilizante en la producción de estrella africana (Cynodon nlemfuensis)

Rodolfo WingChing-Jones,Lidieth Uribe Lorío,Leida Castro Barquero

Published 2016 in UNED Research Journal

ABSTRACT

African star grass is important in some tropical regions and can benefit from the use of biofertilizers like  Azospirillum . We tested three strains of  Azospirillum  as biofertilizer in Turrialba, Costa Rica, from 2011 through 2013. A single dose of 5 liters per hectare was used for the three strains (10 8  CFC.ml -1 ) and a three-way mixture of the strains; and compared with a dose of 10 tons of vermicompost and chemical fertilization (78 kg N per hectare). A second experiment evaluated  Azospirillum  for its potential to substitute chemical fertilizer in proportions of 0, 25, 50 and 75%. A dose of 5 L/ha (10 8  CFU.ml -1 ) was used for all treatments and compared to the dose of 100% of chemical fertilizer. Two of the strains and the three-way yielded similar forage biomass (3.65 to 3.93 t/ha) as the chemical fertilizer (4.12 t/ha). Fertilization with vermicompost was lower (3.56 t/ha). A decline in rainfall from 2012 to 2013 reduced the grass biomass 25% when chemical fertilization was applied (4.07 vs 3.08 t/ha). In the second experiment, no significant differences were found in biomass yields for all treatments with  Azospirillum  or chemical fertilizer (2.97 vs 3.08 t/ha).  Azospirillum  has potential to maintain the productivity of African star grass under a grazing system, but further research is required to define the number of applications per year to maintain a constant effect.

PUBLICATION RECORD

  • Publication year

    2016

  • Venue

    UNED Research Journal

  • Publication date

    2016-10-12

  • Fields of study

    Agricultural and Food Sciences, Biology, Environmental Science

  • Identifiers
    DOI 10.22458/URJ.V8I2.1570
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

CITATION MAP

EXTRACTION MAP

CLAIMS

  • No claims are published for this paper.

CONCEPTS

  • No concepts are published for this paper.

REFERENCES

Showing 1-17 of 17 references · Page 1 of 1

CITED BY