Microbial fertilizer from PK rocks on lettuce nutrients and soil attributes in consecutive crops

Authors

  • Wagner da Silva Oliveira Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/no, Dois Irmãos, CEP 52171-900 Recife, PE.
  • Newton Pereira Stamford Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/no, Dois Irmãos, CEP 52171-900 Recife, PE.
  • Emmanuella Vila Nova da Silva Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/no, Dois Irmãos, CEP 52171-900 Recife, PE.
  • Thatiana Stamford Arnaud Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/no, Dois Irmãos, CEP 52171-900 Recife, PE.
  • Carlos Garcia Izquierdo Department of Soil and Water Conservation, Centro de Edafología y Biología Aplicada del Segura, Campus Universitario de Espinardo, Apartado de Correos 164, Espinardo, 30100 Murcia.
  • Teresa Hernández Department of Soil and Water Conservation, Centro de Edafología y Biología Aplicada del Segura, Campus Universitario de Espinardo, Apartado de Correos 164, Espinardo, 30100 Murcia.

DOI:

https://doi.org/10.1590/S1678-3921.pab2021.v56.26969

Keywords:

Lactuca sativa, agromineral, organic fertilizer, residual effect

Abstract

The objective of this work was to evaluate the effect of a microbial fertilizer, produced from phosphate and potassic rocks and earthworm compost, as an alternative to conventional fertilizers, on lettuce (Lactuca sativa) nutrients and soil attributes. The experiment was conducted in consecutive cycles (30 and 60 days) in a soil from the Lorca region, in the municipality of Murcia, Spain. The fertilization treatments were: conventional fertilizer, 100% of the recommended rate (RR); microbial fertilizer, 50% of the RR (5 Mg ha-1);
microbial fertilizer, 100% of the RR (10 Mg ha-1); microbial fertilizer, 150% of the RR (15 Mg ha-1); and control, without N-P2O5-K2O fertilization. The microbial fertilizers applied at 100 and 150% of the RR showed significant and positive effects, as well as the best results for plant characteristics. The microbial fertilizer increased total N and available P and K compared with the conventional fertilizer. A residual effect was observed in the successive cycle. The effectiveness of the microbial fertilizer shows it is a viable alternative to conventional fertilizers, with positive effects on plant productivity and soil attributes.

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Published

2021-10-20

How to Cite

Oliveira, W. da S., Stamford, N. P., Silva, E. V. N. da, Arnaud, T. S., Izquierdo, C. G., & Hernández, T. (2021). Microbial fertilizer from PK rocks on lettuce nutrients and soil attributes in consecutive crops. Pesquisa Agropecuaria Brasileira, 56(Y), e01371. https://doi.org/10.1590/S1678-3921.pab2021.v56.26969

Issue

V.56, Jan./Dec., 2021 :Continuos publication

Section

THEMATIC NUMBER - REGIONAL AGROMINERALS