Evaluation of Rhizobium inoculation and the addition of seaweed extract in the development of Jurema Preta (Mimosa tenuiflora) seedlings in soil of Caatinga degraded area
DOI:
https://doi.org/10.6008/CBPC2179-6858.2019.004.0019Keywords:
Rhizobium, Lithothaminum, Mimosa tenuiflora, Degradation, CaatingaAbstract
The Caatinga Biome is unique and represents one of the richest dry forests in the world in biodiversity. However, the constant anthropic interference has given it, over the years, weaknesses and degradation. In this sense, native Caatinga species, such as Jurema Preta, have been recommended for the recovery of these areas. The objective of this work was to evaluate the effect of Rhizobium inoculation and the addition of seaweed extract on Jurema Preta development in Caatinga degraded soil. The experiment was carried out with soil from the Florêncio José Association, near Queimadas District, João Câmara (RN). To characterize and evaluate the state of degradation of the area, soil samples from the conserved and degraded area were collected and analyzed. The experiment was conducted in a randomized block design with 8 treatments (Nitrogen Witness (TN); Rhizobium (R); Seaweed Extract (EA); Bovine Manure (EB); Absolute Witness (TA); Seaweed Extract + N urea (EA + N urea); Seaweed Extract + Rhizobium (EA + R); Seaweed Extract + Bovine Manure (EA + EB)) and 4 repetitions. The following variables were analyzed: emergence, emergence speed index, plant growth parameters (height, stem diameter, root length, number of leaves), dry matter and number of nodules. The results showed that the addition of algae extract or Rhizobium inoculation did not promote plant development. However, the treatment with cattle manure (EB), provided for all parameters evaluated, the best development of Jurema Preta seedlings under the evaluated experimental conditions.
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